Comment #1 on issue 9486 by [email protected]: Valgrind reports invalid  
read in TestWebViewDelegate::SetCursor in  
LayoutTests/dom/html/level2/core/hc_entitiessetnameditemns1.html
http://code.google.com/p/chromium/issues/detail?id=9486

There was a similar error in a debug build in
LayoutTests/http/tests/incremental/slow-utf8-css.html
In both cases, the error seemed to be related to shutdown.

Here's the stack:
16:13:23 valgrind_analyze.py [ERROR] InvalidRead
Invalid read of size 4
   scoped_ptr<WebViewHost>::operator->() const (base/scoped_ptr.h:93)
   TestShell::webViewWnd() const (webkit/tools/test_shell/test_shell.h:168)
   TestWebViewDelegate::SetCursor(WebWidget*, WebCursor const&)
(webkit/tools/test_shell/test_webview_delegate_gtk.cc:155)
   ChromeClientImpl::SetCursor(WebCursor const&)  
(webkit/glue/chrome_client_impl.cc:567)
   WebCore::ChromiumBridge::widgetSetCursor(WebCore::Widget*,  
WebCore::Cursor const&)
(webkit/glue/chromium_bridge_impl.cc:192)
   WebCore::Widget::setCursor(WebCore::Cursor const&)
(third_party/WebKit/WebCore/platform/chromium/WidgetChromium.cpp:59)
   WebCore::EventHandler::handleMouseMoveEvent(WebCore::PlatformMouseEvent  
const&,
WebCore::HitTestResult*)  
(third_party/WebKit/WebCore/page/EventHandler.cpp:1254)
   WebCore::EventHandler::mouseMoved(WebCore::PlatformMouseEvent const&)
(third_party/WebKit/WebCore/page/EventHandler.cpp:1160)
   WebViewImpl::MouseMove(WebMouseEvent const&)  
(webkit/glue/webview_impl.cc:408)
   WebViewImpl::HandleInputEvent(WebInputEvent const*)  
(webkit/glue/webview_impl.cc:995)
   (anonymous  
namespace)::WebWidgetHostGtkWidget::HandleMotionNotify(_GtkWidget*,
_GdkEventMotion*, WebWidgetHost*)  
(webkit/tools/test_shell/webwidget_host_gtk.cc:208)
   0xB7208D3 (/usr/lib32/libgtk-x11-2.0.so.0.1200.9)
   g_closure_invoke (/usr/lib32/libgobject-2.0.so.0.1600.3)
   0xBA40D1C (/usr/lib32/libgobject-2.0.so.0.1600.3)
   g_signal_emit_valist (/usr/lib32/libgobject-2.0.so.0.1600.3)
   g_signal_emit (/usr/lib32/libgobject-2.0.so.0.1600.3)
   0xB83F666 (/usr/lib32/libgtk-x11-2.0.so.0.1200.9)
   gtk_propagate_event (/usr/lib32/libgtk-x11-2.0.so.0.1200.9)
   gtk_main_do_event (/usr/lib32/libgtk-x11-2.0.so.0.1200.9)
   0x7F01A99 (/usr/lib32/libgdk-x11-2.0.so.0.1200.9)
   g_main_context_dispatch (/usr/lib32/libglib-2.0.so.0.1600.3)
   0xBAA5E5D (/usr/lib32/libglib-2.0.so.0.1600.3)
   g_main_context_iteration (/usr/lib32/libglib-2.0.so.0.1600.3)
   base::MessagePumpForUI::Run(base::MessagePump::Delegate*)  
(base/message_pump_glib.cc:149)
   MessageLoop::RunInternal() (base/message_loop.cc:197)
   MessageLoop::RunHandler() (base/message_loop.cc:180)
   MessageLoop::RunAllPending() (base/message_loop.cc:160)
   main (webkit/tools/test_shell/test_shell_main.cc:295)
Address 0xcee192c is 12 bytes inside a block of size 56 free'd
   operator delete(void*)  
(valgrind/trunk/coregrind/m_replacemalloc/vg_replace_malloc.c:362)
   TestShell::~TestShell() (webkit/tools/test_shell/test_shell.cc:148)
   main (webkit/tools/test_shell/test_shell_main.cc:286)


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