Title: [208356] trunk

Diff

Modified: trunk/LayoutTests/ChangeLog (208355 => 208356)


--- trunk/LayoutTests/ChangeLog	2016-11-03 23:10:53 UTC (rev 208355)
+++ trunk/LayoutTests/ChangeLog	2016-11-03 23:18:01 UTC (rev 208356)
@@ -1,3 +1,16 @@
+2016-11-03  Ryan Haddad  <[email protected]>
+
+        Unreviewed, rolling out r208302.
+
+        This change causes LayoutTest crashes under GuardMalloc.
+
+        Reverted changeset:
+
+        "Load stylesheets in link elements inside a connected shadow
+        tree"
+        https://bugs.webkit.org/show_bug.cgi?id=160683
+        http://trac.webkit.org/changeset/208302
+
 2016-11-03  Yusuke Suzuki  <[email protected]>
 
         Unreviewed, rolling out due to crash in Amazon web site

Deleted: trunk/LayoutTests/fast/shadow-dom/link-element-in-shadow-tree-expected.txt (208355 => 208356)


--- trunk/LayoutTests/fast/shadow-dom/link-element-in-shadow-tree-expected.txt	2016-11-03 23:10:53 UTC (rev 208355)
+++ trunk/LayoutTests/fast/shadow-dom/link-element-in-shadow-tree-expected.txt	2016-11-03 23:18:01 UTC (rev 208356)
@@ -1,12 +0,0 @@
-
-PASS Link elements should load stylesheets inside a connected shadow tree with closed mode 
-PASS Link elements should load stylesheets inside a connected shadow tree with open mode 
-PASS Link elements must not load stylesheets inside a disconnceted shadow tree with closed mode 
-PASS Link elements must not load stylesheets inside a disconnceted shadow tree with open mode 
-PASS Style rules loaded inside a shadow tree with closed mode must apply to a div in the shadow tree 
-PASS Style rules loaded inside a shadow tree with open mode must apply to a div in the shadow tree 
-PASS :host style rules loaded inside a shadow tree with closed mode must apply to the host element 
-PASS :host style rules loaded inside a shadow tree with open mode must apply to the host element 
-PASS Link elements should load stylesheets inside a connected shadow tree with closed mode 
-PASS Link elements should load stylesheets inside a connected shadow tree with open mode 
-

Deleted: trunk/LayoutTests/fast/shadow-dom/link-element-in-shadow-tree.html (208355 => 208356)


--- trunk/LayoutTests/fast/shadow-dom/link-element-in-shadow-tree.html	2016-11-03 23:10:53 UTC (rev 208355)
+++ trunk/LayoutTests/fast/shadow-dom/link-element-in-shadow-tree.html	2016-11-03 23:18:01 UTC (rev 208356)
@@ -1,143 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-<title>Shadow DOM: Link elements should load stylesheets inside shadow trees</title>
-<meta name="author" title="Ryosuke Niwa" href=""
-<meta name="assert" content="Link elements should load inside shadow trees">
-<script src=''></script>
-<script src=''></script>
-</head>
-<body>
-<script>
-
-function wait_for_onload(element, callback = null) {
-    return new Promise(function (resolve, reject) {
-        element._onload_ = resolve;
-        element._onerror_ = reject;
-        setTimeout(() => reject('timeout'), 100);
-        if (callback)
-            return callback();
-    });
-}
-
-let test_iframe;
-function create_iframe() {
-    if (test_iframe)
-        test_iframe.remove();
-
-    test_iframe = document.createElement('iframe');
-    return wait_for_onload().then(() => test_iframe.contentWindow, () => {
-        document.body.appendChild(test_iframe);
-    }).then(function () {
-        const doc = test_iframe.contentWindow.document;
-        doc.open();
-        doc.write('<!DOCTYPE html><html><head><body>');
-        doc.close();
-        return test_iframe.contentWindow;
-    });
-}
-
-add_result_callback(() => {
-    if (test_iframe)
-        test_iframe.remove();
-});
-
-function test_stylesheet_load_in_connected_shadow_tree(mode) {
-    promise_test(() => {
-        return create_iframe().then(contentWindow => {
-            const doc = contentWindow.document;
-            const host = doc.createElement('div');
-            const link = doc.createElement('link');
-            return wait_for_onload(link, () => {
-                link.rel = 'stylesheet';
-                link.href = '';
-                host.attachShadow({mode: mode}).appendChild(link);
-                contentWindow.document.body.appendChild(host);
-            });
-        });
-    }, `Link elements should load stylesheets inside a connected shadow tree with ${mode} mode`);
-}
-
-test_stylesheet_load_in_connected_shadow_tree('closed');
-test_stylesheet_load_in_connected_shadow_tree('open');
-
-function test_stylesheet_do_not_load_in_disconnected_shadow_tree(mode) {
-    promise_test(() => {
-        return create_iframe().then((contentWindow) => {
-            const doc = contentWindow.document;
-            const host = doc.createElement('div');
-            const link = doc.createElement('link');
-            return wait_for_onload(link, () => {
-                link.rel = 'stylesheet';
-                link.href = '';
-                host.attachShadow({mode: mode}).appendChild(link);
-            });
-        }).then(() => {
-            assert_true(false, 'stylesheet must not load inside a disconnected shadow tree');
-        }, (error) => {
-            assert_equals(error, 'timeout');
-        });
-    }, `Link elements must not load stylesheets inside a disconnceted shadow tree with ${mode} mode`);
-}
-
-test_stylesheet_do_not_load_in_disconnected_shadow_tree('closed');
-test_stylesheet_do_not_load_in_disconnected_shadow_tree('open');
-
-function test_loaded_stylesheet_rule_in_shadow_tree_applies_to_div(mode) {
-    promise_test(() => {
-        let div;
-        return create_iframe().then(function (contentWindow) {
-            const doc = contentWindow.document;
-            const host = doc.createElement('div');
-            const shadowRoot = host.attachShadow({mode: mode});
-            shadowRoot.innerHTML = '<link rel="stylesheet" href=""
-            div = shadowRoot.querySelector('div');
-            return wait_for_onload(shadowRoot.querySelector('link'), () => { doc.body.appendChild(host) });
-        }).then(() => {
-            assert_equals(getComputedStyle(div).color, 'rgb(0, 128, 0)');
-        });
-    }, `Style rules loaded inside a shadow tree with ${mode} mode must apply to a div in the shadow tree`);
-}
-
-test_loaded_stylesheet_rule_in_shadow_tree_applies_to_div('closed');
-test_loaded_stylesheet_rule_in_shadow_tree_applies_to_div('open');
-
-function test_loaded_stylesheet_rule_in_shadow_tree_applies_to_host(mode) {
-    promise_test(() => {
-        let host;
-        return create_iframe().then(function (contentWindow) {
-            const doc = contentWindow.document;
-            host = doc.createElement('div');
-            const shadowRoot = host.attachShadow({mode: mode});
-            shadowRoot.innerHTML = '<link rel="stylesheet" href=""
-            return wait_for_onload(shadowRoot.querySelector('link'), () => { doc.body.appendChild(host) });
-        }).then(() => {
-            assert_equals(getComputedStyle(host).color, 'rgb(0, 128, 0)');
-        });
-    }, `:host style rules loaded inside a shadow tree with ${mode} mode must apply to the host element`);
-}
-
-test_loaded_stylesheet_rule_in_shadow_tree_applies_to_host('closed');
-test_loaded_stylesheet_rule_in_shadow_tree_applies_to_host('open');
-
-function test_title_is_ignored_in_shadow_tree(mode) {
-    promise_test(() => {
-        let doc;
-        return create_iframe().then((contentWindow) => {
-            doc = contentWindow.document;
-            const host = doc.createElement('div');
-            const shadowRoot = host.attachShadow({mode: mode});
-            shadowRoot.innerHTML = `<style title="foo"></style>`;
-            doc.body.appendChild(host);
-        }).then(() => {
-            assert_equals(doc.selectedStylesheetSet, null);
-        });
-    }, `Link elements should load stylesheets inside a connected shadow tree with ${mode} mode`);
-}
-
-test_title_is_ignored_in_shadow_tree('closed');
-test_title_is_ignored_in_shadow_tree('open');
-
-</script>
-</html>
-</body>

Deleted: trunk/LayoutTests/fast/shadow-dom/resources/green-host.css (208355 => 208356)


--- trunk/LayoutTests/fast/shadow-dom/resources/green-host.css	2016-11-03 23:10:53 UTC (rev 208355)
+++ trunk/LayoutTests/fast/shadow-dom/resources/green-host.css	2016-11-03 23:18:01 UTC (rev 208356)
@@ -1,9 +0,0 @@
-:host, div {
-    /* For the ease of debugging. */
-    display: inline-block;
-    width: 100px;
-    height: 100px;
-
-    color: green;
-    background: green;
-}

Deleted: trunk/LayoutTests/fast/shadow-dom/selected-stylesheet-in-shadow-tree-expected.txt (208355 => 208356)


--- trunk/LayoutTests/fast/shadow-dom/selected-stylesheet-in-shadow-tree-expected.txt	2016-11-03 23:10:53 UTC (rev 208355)
+++ trunk/LayoutTests/fast/shadow-dom/selected-stylesheet-in-shadow-tree-expected.txt	2016-11-03 23:18:01 UTC (rev 208356)
@@ -1,8 +0,0 @@
-
-PASS The title attribute on the style element in a document must set the preferred stylesheet. 
-PASS The title attribute on the style element inside a closed shadow tree must not set the preferred stylesheet. 
-PASS The title attribute on the style element inside an open shadow tree must not set the preferred stylesheet. 
-PASS The title attribute on the link element in a document must set the preferred stylesheet. 
-PASS The title attribute on the link element inside a closed shadow tree must not set the preferred stylesheet. 
-PASS The title attribute on the link element inside an open shadow tree must not set the preferred stylesheet. 
-

Deleted: trunk/LayoutTests/fast/shadow-dom/selected-stylesheet-in-shadow-tree.html (208355 => 208356)


--- trunk/LayoutTests/fast/shadow-dom/selected-stylesheet-in-shadow-tree.html	2016-11-03 23:10:53 UTC (rev 208355)
+++ trunk/LayoutTests/fast/shadow-dom/selected-stylesheet-in-shadow-tree.html	2016-11-03 23:18:01 UTC (rev 208356)
@@ -1,99 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-<title>Shadow DOM: Link and style elements inside a shadow tree should not affect the preferred stylesheet</title>
-<meta name="author" title="Ryosuke Niwa" href=""
-<meta name="assert" content="Link and style elements inside a shadow tree should not affect the preferred stylesheet">
-<script src=''></script>
-<script src=''></script>
-</head>
-<body>
-<script>
-
-function make_iframe(markup, testFunction) {
-    return () => {
-        const iframe = document.createElement('iframe');
-        return new Promise(function (resolve) {
-            iframe._onload_ = () => { resolve(iframe.contentDocument); };
-            document.body.appendChild(iframe);
-        }).then(function (doc) {
-            doc.open();
-            doc.write(markup);
-            doc.close();
-            return testFunction(doc, doc.querySelector('div'));
-        }).then(() => iframe.remove(), error => {
-            iframe.remove();
-            return Promise.reject(error);
-        });
-    };
-}
-
-// Some browsers don't synchronously update the selected stylesheet. 
-function wait_for_stylesheet_to_be_selected() {
-    return new Promise(function (resolve) {
-        setTimeout(resolve, 0);
-    });
-}
-
-promise_test(make_iframe(`<!DOCTYPE html><body>`, (doc) => {
-    doc.body.innerHTML = `<style title="foo">div { color: red; }</style>`;
-    return wait_for_stylesheet_to_be_selected().then(() => {
-        assert_equals(doc.preferredStylesheetSet, 'foo');
-        assert_equals(doc.selectedStylesheetSet, 'foo');
-    });
-}), 'The title attribute on the style element in a document must set the preferred stylesheet.');
-
-promise_test(make_iframe(`<!DOCTYPE html><body><div>`, (doc) => {
-    doc.querySelector('div').attachShadow({mode: 'closed'}).innerHTML = `<style title="foo"></style>`;
-    return wait_for_stylesheet_to_be_selected().then(() => {
-        assert_equals(doc.preferredStylesheetSet, null);
-        assert_equals(doc.selectedStylesheetSet, null);
-    });
-}), 'The title attribute on the style element inside a closed shadow tree must not set the preferred stylesheet.');
-
-promise_test(make_iframe(`<!DOCTYPE html><body><div>`, (doc) => {
-    doc.querySelector('div').attachShadow({mode: 'open'}).innerHTML = `<style title="foo"></style>`;
-    return wait_for_stylesheet_to_be_selected().then(() => {
-        assert_equals(doc.preferredStylesheetSet, null);
-        assert_equals(doc.selectedStylesheetSet, null);
-    });
-}), 'The title attribute on the style element inside an open shadow tree must not set the preferred stylesheet.');
-
-function insert_link_and_wait(parent, title) {
-    return new Promise((resolve, reject) => {
-        const link = parent.ownerDocument.createElement('link');
-        link.rel = 'stylesheet';
-        link.title = title;
-        link.href = '';
-        link._onload_ = resolve;
-        parent.appendChild(link);
-        setTimeout(() => reject('Failed to load the stylesheet'), 1000);
-    }).then(() => wait_for_stylesheet_to_be_selected());
-}
-
-promise_test(make_iframe(`<!DOCTYPE html><body>`, (doc) => {
-    return insert_link_and_wait(doc.body, 'foo').then(() => {
-        assert_equals(doc.preferredStylesheetSet, 'foo');
-        assert_equals(doc.selectedStylesheetSet, 'foo');
-    });
-}), 'The title attribute on the link element in a document must set the preferred stylesheet.');
-
-promise_test(make_iframe(`<!DOCTYPE html><body><div>`, (doc) => {
-    const root = doc.querySelector('div').attachShadow({mode: 'closed'});
-    return insert_link_and_wait(root, 'foo').then(() => {
-        assert_equals(doc.preferredStylesheetSet, null);
-        assert_equals(doc.selectedStylesheetSet, null);
-    });
-}), 'The title attribute on the link element inside a closed shadow tree must not set the preferred stylesheet.');
-
-promise_test(make_iframe(`<!DOCTYPE html><body><div>`, (doc) => {
-    const root = doc.querySelector('div').attachShadow({mode: 'open'});
-    return insert_link_and_wait(root, 'foo').then(() => {
-        assert_equals(doc.preferredStylesheetSet, null);
-        assert_equals(doc.selectedStylesheetSet, null);
-    });
-}), 'The title attribute on the link element inside an open shadow tree must not set the preferred stylesheet.');
-
-</script>
-</html>
-</body>

Modified: trunk/Source/WebCore/ChangeLog (208355 => 208356)


--- trunk/Source/WebCore/ChangeLog	2016-11-03 23:10:53 UTC (rev 208355)
+++ trunk/Source/WebCore/ChangeLog	2016-11-03 23:18:01 UTC (rev 208356)
@@ -1,3 +1,16 @@
+2016-11-03  Ryan Haddad  <[email protected]>
+
+        Unreviewed, rolling out r208302.
+
+        This change causes LayoutTest crashes under GuardMalloc.
+
+        Reverted changeset:
+
+        "Load stylesheets in link elements inside a connected shadow
+        tree"
+        https://bugs.webkit.org/show_bug.cgi?id=160683
+        http://trac.webkit.org/changeset/208302
+
 2016-11-03  Chris Dumez  <[email protected]>
 
         Unreviewed, add HTML5 specification for HTML Interactive Form Validation feature.

Modified: trunk/Source/WebCore/dom/Document.cpp (208355 => 208356)


--- trunk/Source/WebCore/dom/Document.cpp	2016-11-03 23:10:53 UTC (rev 208355)
+++ trunk/Source/WebCore/dom/Document.cpp	2016-11-03 23:18:01 UTC (rev 208356)
@@ -6980,13 +6980,11 @@
 void Document::didInsertInDocumentShadowRoot(ShadowRoot& shadowRoot)
 {
     ASSERT(shadowRoot.inDocument());
-    ASSERT(!m_inDocumentShadowRoots.contains(&shadowRoot));
     m_inDocumentShadowRoots.add(&shadowRoot);
 }
 
 void Document::didRemoveInDocumentShadowRoot(ShadowRoot& shadowRoot)
 {
-    ASSERT(!shadowRoot.inDocument());
     ASSERT(m_inDocumentShadowRoots.contains(&shadowRoot));
     m_inDocumentShadowRoots.remove(&shadowRoot);
 }

Modified: trunk/Source/WebCore/dom/Element.cpp (208355 => 208356)


--- trunk/Source/WebCore/dom/Element.cpp	2016-11-03 23:10:53 UTC (rev 208355)
+++ trunk/Source/WebCore/dom/Element.cpp	2016-11-03 23:18:01 UTC (rev 208356)
@@ -1784,6 +1784,8 @@
 
     oldRoot->setHost(nullptr);
     oldRoot->setParentTreeScope(&document());
+
+    notifyChildNodeRemoved(*this, *oldRoot);
 }
 
 static bool canAttachAuthorShadowRoot(const Element& element)

Modified: trunk/Source/WebCore/dom/ShadowRoot.cpp (208355 => 208356)


--- trunk/Source/WebCore/dom/ShadowRoot.cpp	2016-11-03 23:10:53 UTC (rev 208355)
+++ trunk/Source/WebCore/dom/ShadowRoot.cpp	2016-11-03 23:18:01 UTC (rev 208356)
@@ -84,18 +84,17 @@
 
 Node::InsertionNotificationRequest ShadowRoot::insertedInto(ContainerNode& insertionPoint)
 {
-    bool wasInDocument = inDocument();
-    DocumentFragment::insertedInto(insertionPoint);
-    if (insertionPoint.inDocument() && !wasInDocument)
+    auto result = DocumentFragment::insertedInto(insertionPoint);
+    if (inDocument())
         document().didInsertInDocumentShadowRoot(*this);
-    return InsertionDone;
+    return result;
 }
 
 void ShadowRoot::removedFrom(ContainerNode& insertionPoint)
 {
+    if (inDocument())
+        document().didRemoveInDocumentShadowRoot(*this);
     DocumentFragment::removedFrom(insertionPoint);
-    if (insertionPoint.inDocument() && !inDocument())
-        document().didRemoveInDocumentShadowRoot(*this);
 }
 
 Style::Scope& ShadowRoot::styleScope()

Modified: trunk/Source/WebCore/html/HTMLLinkElement.cpp (208355 => 208356)


--- trunk/Source/WebCore/html/HTMLLinkElement.cpp	2016-11-03 23:10:53 UTC (rev 208355)
+++ trunk/Source/WebCore/html/HTMLLinkElement.cpp	2016-11-03 23:18:01 UTC (rev 208356)
@@ -80,6 +80,7 @@
     , m_disabledState(Unset)
     , m_loading(false)
     , m_createdByParser(createdByParser)
+    , m_isInShadowTree(false)
     , m_firedLoad(false)
     , m_loadedResource(false)
     , m_pendingSheetType(Unknown)
@@ -100,8 +101,8 @@
     if (m_cachedSheet)
         m_cachedSheet->removeClient(*this);
 
-    if (m_styleScope)
-        m_styleScope->removeStyleSheetCandidateNode(*this);
+    if (inDocument())
+        document().styleScope().removeStyleSheetCandidateNode(*this);
 
     linkLoadEventSender().cancelEvent(*this);
     linkErrorEventSender().cancelEvent(*this);
@@ -111,43 +112,36 @@
 {
     DisabledState oldDisabledState = m_disabledState;
     m_disabledState = disabled ? Disabled : EnabledViaScript;
-    if (oldDisabledState == m_disabledState)
-        return;
+    if (oldDisabledState != m_disabledState) {
+        // If we change the disabled state while the sheet is still loading, then we have to
+        // perform three checks:
+        if (styleSheetIsLoading()) {
+            // Check #1: The sheet becomes disabled while loading.
+            if (m_disabledState == Disabled)
+                removePendingSheet();
 
-    ASSERT(inDocument() || !styleSheetIsLoading());
-    if (!inDocument())
-        return;
+            // Check #2: An alternate sheet becomes enabled while it is still loading.
+            if (m_relAttribute.isAlternate && m_disabledState == EnabledViaScript)
+                addPendingSheet(ActiveSheet);
 
-    // If we change the disabled state while the sheet is still loading, then we have to
-    // perform three checks:
-    if (styleSheetIsLoading()) {
-        // Check #1: The sheet becomes disabled while loading.
-        if (m_disabledState == Disabled)
-            removePendingSheet();
+            // Check #3: A main sheet becomes enabled while it was still loading and
+            // after it was disabled via script. It takes really terrible code to make this
+            // happen (a double toggle for no reason essentially). This happens on
+            // virtualplastic.net, which manages to do about 12 enable/disables on only 3
+            // sheets. :)
+            if (!m_relAttribute.isAlternate && m_disabledState == EnabledViaScript && oldDisabledState == Disabled)
+                addPendingSheet(ActiveSheet);
 
-        // Check #2: An alternate sheet becomes enabled while it is still loading.
-        if (m_relAttribute.isAlternate && m_disabledState == EnabledViaScript)
-            addPendingSheet(ActiveSheet);
+            // If the sheet is already loading just bail.
+            return;
+        }
 
-        // Check #3: A main sheet becomes enabled while it was still loading and
-        // after it was disabled via script. It takes really terrible code to make this
-        // happen (a double toggle for no reason essentially). This happens on
-        // virtualplastic.net, which manages to do about 12 enable/disables on only 3
-        // sheets. :)
-        if (!m_relAttribute.isAlternate && m_disabledState == EnabledViaScript && oldDisabledState == Disabled)
-            addPendingSheet(ActiveSheet);
-
-        // If the sheet is already loading just bail.
-        return;
+        // Load the sheet, since it's never been loaded before.
+        if (!m_sheet && m_disabledState == EnabledViaScript)
+            process();
+        else
+            document().styleScope().didChangeActiveStyleSheetCandidates();
     }
-
-    // Load the sheet, since it's never been loaded before.
-    if (!m_sheet && m_disabledState == EnabledViaScript)
-        process();
-    else {
-        ASSERT(m_styleScope);
-        m_styleScope->didChangeActiveStyleSheetCandidates();
-    }
 }
 
 void HTMLLinkElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
@@ -182,7 +176,7 @@
         m_media = value.string().convertToASCIILowercase();
         process();
         if (m_sheet && !isDisabled())
-            m_styleScope->didChangeActiveStyleSheetCandidates();
+            document().styleScope().didChangeActiveStyleSheetCandidates();
         return;
     }
     if (name == disabledAttr) {
@@ -220,7 +214,7 @@
 
 void HTMLLinkElement::process()
 {
-    if (!inDocument()) {
+    if (!inDocument() || m_isInShadowTree) {
         ASSERT(!m_sheet);
         return;
     }
@@ -289,7 +283,7 @@
     } else if (m_sheet) {
         // we no longer contain a stylesheet, e.g. perhaps rel or type was changed
         clearSheet();
-        m_styleScope->didChangeActiveStyleSheetCandidates();
+        document().styleScope().didChangeActiveStyleSheetCandidates();
     }
 }
 
@@ -303,14 +297,16 @@
 
 Node::InsertionNotificationRequest HTMLLinkElement::insertedInto(ContainerNode& insertionPoint)
 {
-    bool wasInDocument = inDocument();
     HTMLElement::insertedInto(insertionPoint);
-    if (!insertionPoint.inDocument() || wasInDocument)
+    if (!insertionPoint.inDocument())
         return InsertionDone;
 
-    m_styleScope = &Style::Scope::forNode(*this);
-    m_styleScope->addStyleSheetCandidateNode(*this, m_createdByParser);
+    m_isInShadowTree = isInShadowTree();
+    if (m_isInShadowTree)
+        return InsertionDone;
 
+    document().styleScope().addStyleSheetCandidateNode(*this, m_createdByParser);
+
     process();
     return InsertionDone;
 }
@@ -318,20 +314,20 @@
 void HTMLLinkElement::removedFrom(ContainerNode& insertionPoint)
 {
     HTMLElement::removedFrom(insertionPoint);
-    if (!insertionPoint.inDocument() || inDocument())
+    if (!insertionPoint.inDocument())
         return;
 
+    if (m_isInShadowTree) {
+        ASSERT(!m_sheet);
+        return;
+    }
+    document().styleScope().removeStyleSheetCandidateNode(*this);
+
     if (m_sheet)
         clearSheet();
 
     if (styleSheetIsLoading())
         removePendingSheet(RemovePendingSheetNotifyLater);
-    
-    if (m_styleScope) {
-        m_styleScope->removeStyleSheetCandidateNode(*this);
-        m_styleScope = nullptr;
-    }
-
 }
 
 void HTMLLinkElement::finishParsingChildren()
@@ -548,8 +544,7 @@
 
     if (m_pendingSheetType == InactiveSheet)
         return;
-    ASSERT(m_styleScope);
-    m_styleScope->addPendingSheet();
+    document().styleScope().addPendingSheet();
 }
 
 void HTMLLinkElement::removePendingSheet(RemovePendingSheetNotificationType notification)
@@ -560,14 +555,13 @@
     if (type == Unknown)
         return;
 
-    ASSERT(m_styleScope);
     if (type == InactiveSheet) {
         // Document just needs to know about the sheet for exposure through document.styleSheets
-        m_styleScope->didChangeActiveStyleSheetCandidates();
+        document().styleScope().didChangeActiveStyleSheetCandidates();
         return;
     }
 
-    m_styleScope->removePendingSheet(
+    document().styleScope().removePendingSheet(
         notification == RemovePendingSheetNotifyImmediately
         ? Style::Scope::RemovePendingSheetNotifyImmediately
         : Style::Scope::RemovePendingSheetNotifyLater);

Modified: trunk/Source/WebCore/html/HTMLLinkElement.h (208355 => 208356)


--- trunk/Source/WebCore/html/HTMLLinkElement.h	2016-11-03 23:10:53 UTC (rev 208355)
+++ trunk/Source/WebCore/html/HTMLLinkElement.h	2016-11-03 23:18:01 UTC (rev 208356)
@@ -119,7 +119,6 @@
     void removePendingSheet(RemovePendingSheetNotificationType = RemovePendingSheetNotifyImmediately);
 
     LinkLoader m_linkLoader;
-    Style::Scope* m_styleScope { nullptr };
     CachedResourceHandle<CachedCSSStyleSheet> m_cachedSheet;
     RefPtr<CSSStyleSheet> m_sheet;
     enum DisabledState {
@@ -135,6 +134,7 @@
     LinkRelAttribute m_relAttribute;
     bool m_loading;
     bool m_createdByParser;
+    bool m_isInShadowTree;
     bool m_firedLoad;
     bool m_loadedResource;
 

Modified: trunk/Source/WebCore/html/HTMLStyleElement.cpp (208355 => 208356)


--- trunk/Source/WebCore/html/HTMLStyleElement.cpp	2016-11-03 23:10:53 UTC (rev 208355)
+++ trunk/Source/WebCore/html/HTMLStyleElement.cpp	2016-11-03 23:18:01 UTC (rev 208356)
@@ -94,17 +94,18 @@
 
 Node::InsertionNotificationRequest HTMLStyleElement::insertedInto(ContainerNode& insertionPoint)
 {
-    bool wasInDocument = inDocument();
-    auto result = HTMLElement::insertedInto(insertionPoint);
-    if (insertionPoint.inDocument() && !wasInDocument)
+    HTMLElement::insertedInto(insertionPoint);
+    if (insertionPoint.inDocument())
         m_styleSheetOwner.insertedIntoDocument(*this);
-    return result;
+
+    return InsertionDone;
 }
 
 void HTMLStyleElement::removedFrom(ContainerNode& insertionPoint)
 {
     HTMLElement::removedFrom(insertionPoint);
-    if (insertionPoint.inDocument() && !inDocument())
+
+    if (insertionPoint.inDocument())
         m_styleSheetOwner.removedFromDocument(*this);
 }
 

Modified: trunk/Source/WebCore/svg/SVGStyleElement.cpp (208355 => 208356)


--- trunk/Source/WebCore/svg/SVGStyleElement.cpp	2016-11-03 23:10:53 UTC (rev 208355)
+++ trunk/Source/WebCore/svg/SVGStyleElement.cpp	2016-11-03 23:18:01 UTC (rev 208356)
@@ -116,17 +116,16 @@
 
 Node::InsertionNotificationRequest SVGStyleElement::insertedInto(ContainerNode& rootParent)
 {
-    bool wasInDocument = inDocument();
-    auto result = SVGElement::insertedInto(rootParent);
-    if (rootParent.inDocument() && !wasInDocument)
+    SVGElement::insertedInto(rootParent);
+    if (rootParent.inDocument())
         m_styleSheetOwner.insertedIntoDocument(*this);
-    return result;
+    return InsertionDone;
 }
 
 void SVGStyleElement::removedFrom(ContainerNode& rootParent)
 {
     SVGElement::removedFrom(rootParent);
-    if (rootParent.inDocument() && !inDocument())
+    if (rootParent.inDocument())
         m_styleSheetOwner.removedFromDocument(*this);
 }
 
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