Diff
Modified: trunk/LayoutTests/ChangeLog (109513 => 109514)
--- trunk/LayoutTests/ChangeLog 2012-03-02 06:43:31 UTC (rev 109513)
+++ trunk/LayoutTests/ChangeLog 2012-03-02 06:47:13 UTC (rev 109514)
@@ -1,3 +1,15 @@
+2012-03-01 Dana Jansens <[email protected]>
+
+ [chromium] Make opaque paint tracker aware of SkCanvas layers
+ https://bugs.webkit.org/show_bug.cgi?id=79145
+
+ Reviewed by Stephen White.
+
+ * compositing/culling/clear-fixed-iframe-expected.png: Added.
+ * compositing/culling/clear-fixed-iframe-expected.txt: Added.
+ * compositing/culling/clear-fixed-iframe.html: Added.
+ * compositing/culling/resources/clear-fixed-iframe-content.html: Added.
+
2012-03-01 Hironori Bono <[email protected]>
Render overflow controls of an RTL element to its left-side.
Added: trunk/LayoutTests/compositing/culling/clear-fixed-iframe-expected.png (0 => 109514)
--- trunk/LayoutTests/compositing/culling/clear-fixed-iframe-expected.png (rev 0)
+++ trunk/LayoutTests/compositing/culling/clear-fixed-iframe-expected.png 2012-03-02 06:47:13 UTC (rev 109514)
@@ -0,0 +1,6 @@
+\x89PNG
+
+
+IHDR X ' )tEXtchecksum c4ced6fc3879acf1d2567835da54860d \xC9\xF0\xBD
+\xBDIDATx\x9C\xED\xD8A
+\x800 A@,:\xD0Q\xE8\xC0xn\xD2\xD0\xCC(\xB8\xE7\xE6\xF6\xF3>7 \x80Ϙ=\xE1\xC31{ \xC0j @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4 @L` \xC4\xF6\xED\x9A= `- , \x80\x98\xC0 \x88 , \x80\x98\xC0 \x88 , \x80\x98\xC0 \x88 , \x80\x98\xC0 \x88 , \x80\x98\xC0 \x88 , \x80\x98\xC0 \x88 , \x80\x98\xC0 \x88 , \x80\x98\xC0 \x88 , \x80\x98\xC0 \x88 , \x80\x98\xC0 \x88 , \x80\x98\xC0 \x88 , \x80\x98\xC0 \x88 , \x80\x98\xC0 \x88 , \x80\x98\xC0 \x88 , \x80\x98\xC0 \x88 , \x80\x98\xC0 \x88 , \x80\x98\xC0 \x88 , \x80\x98\xC0 \x88 , \x80\x98\xC0 \x88 , \x80\x98\xC0 \x88 , \x80\x98\xC0 \x88 , \x80\x98\xC0 \x88 , \x80\x98\xC0 \x88 , \x80\x98\xC0 \x88 , \x80\xD8 Z\xAF(\xD9\xD7 IEND\xAEB`\x82
\ No newline at end of file
Added: trunk/LayoutTests/compositing/culling/clear-fixed-iframe-expected.txt (0 => 109514)
--- trunk/LayoutTests/compositing/culling/clear-fixed-iframe-expected.txt (rev 0)
+++ trunk/LayoutTests/compositing/culling/clear-fixed-iframe-expected.txt 2012-03-02 06:47:13 UTC (rev 109514)
@@ -0,0 +1 @@
+
Added: trunk/LayoutTests/compositing/culling/clear-fixed-iframe.html (0 => 109514)
--- trunk/LayoutTests/compositing/culling/clear-fixed-iframe.html (rev 0)
+++ trunk/LayoutTests/compositing/culling/clear-fixed-iframe.html 2012-03-02 06:47:13 UTC (rev 109514)
@@ -0,0 +1,36 @@
+<!DOCTYPE html>
+<html><head><title>Compositor Iframe Sadface</title>
+<style>
+body { margin: 0; padding: 0; }
+.composited {
+ -webkit-transform: translateZ(0);
+ background-color: green;
+ position:fixed;
+ left:0; top:0; right:0; bottom:0;
+}
+iframe {
+ position:fixed;
+ left: 0; top: 0;
+ width:100%;
+ height: 100%;
+ border:0;
+}
+</style>
+<script type="text/_javascript_">
+ if (window.layoutTestController) {
+ layoutTestController.dumpAsText(true);
+ }
+</script>
+</head>
+
+<body>
+<div class="composited"></div>
+
+<!-- You should see a light green box filling the top/left of the window, inside a darker green background.
+ If the "glass" in the iframe is considered opaque, then drawing errors will occur and tiles become black
+ (light gray with the glass).
+ -->
+<iframe src="" frameborder="0"></iframe>
+</body>
+
+</html>
Added: trunk/LayoutTests/compositing/culling/resources/clear-fixed-iframe-content.html (0 => 109514)
--- trunk/LayoutTests/compositing/culling/resources/clear-fixed-iframe-content.html (rev 0)
+++ trunk/LayoutTests/compositing/culling/resources/clear-fixed-iframe-content.html 2012-03-02 06:47:13 UTC (rev 109514)
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<html><head><title></title>
+<style>
+body { margin:0; padding:0; }
+
+#glass {
+ opacity:0.4;
+ background-color:white;
+ position:absolute;
+ top:0px; left:0px; right:50px; bottom: 50px;
+}
+</style>
+</head>
+
+<body>
+<div id="glass"></div>
+</body>
+</script>
+</html>
Modified: trunk/Source/WebCore/ChangeLog (109513 => 109514)
--- trunk/Source/WebCore/ChangeLog 2012-03-02 06:43:31 UTC (rev 109513)
+++ trunk/Source/WebCore/ChangeLog 2012-03-02 06:47:13 UTC (rev 109514)
@@ -1,3 +1,36 @@
+2012-03-01 Dana Jansens <[email protected]>
+
+ [chromium] Make opaque paint tracker aware of SkCanvas layers
+ https://bugs.webkit.org/show_bug.cgi?id=79145
+
+ Reviewed by Stephen White.
+
+ The current opaque paint tracker ignored SkCanvas layers entirely. But
+ SkCanvas layers can be used to apply things like alpha. So we make it
+ know about layers, and apply any clipping and SkPaint objects for layers
+ when tracking a paint.
+
+ Image clipping is done via a layer, so we can now also remove the
+ special-case code around image clipping in PlatformContextSkia and
+ OpaqueRegionSkia.
+
+ Unit test: PlatformContextSkiaTest.contextTransparencyLayerTest
+
+ Test: compositing/culling/clear-fixed-iframe.html
+
+ * platform/graphics/skia/OpaqueRegionSkia.cpp:
+ (WebCore::OpaqueRegionSkia::didDrawRect):
+ (WebCore::OpaqueRegionSkia::didDrawPath):
+ (WebCore::OpaqueRegionSkia::didDrawPoints):
+ (WebCore::OpaqueRegionSkia::didDrawBounded):
+ (WebCore::OpaqueRegionSkia::didDraw):
+ (WebCore):
+ * platform/graphics/skia/OpaqueRegionSkia.h:
+ (OpaqueRegionSkia):
+ * platform/graphics/skia/PlatformContextSkia.cpp:
+ * platform/graphics/skia/PlatformContextSkia.h:
+ (PlatformContextSkia):
+
2012-03-02 Kent Tamura <[email protected]>
Add HTML-capable popup API to ChromeClient
Modified: trunk/Source/WebCore/platform/graphics/skia/OpaqueRegionSkia.cpp (109513 => 109514)
--- trunk/Source/WebCore/platform/graphics/skia/OpaqueRegionSkia.cpp 2012-03-02 06:43:31 UTC (rev 109513)
+++ trunk/Source/WebCore/platform/graphics/skia/OpaqueRegionSkia.cpp 2012-03-02 06:47:13 UTC (rev 109514)
@@ -147,7 +147,7 @@
return true;
}
-void OpaqueRegionSkia::didDrawRect(const PlatformContextSkia* context, const AffineTransform& transform, const SkRect& fillRect, const SkPaint& paint, const SkBitmap* bitmap)
+void OpaqueRegionSkia::didDrawRect(PlatformContextSkia* context, const AffineTransform& transform, const SkRect& fillRect, const SkPaint& paint, const SkBitmap* bitmap)
{
// Any stroking may put alpha in pixels even if the filling part does not.
if (paint.getStyle() != SkPaint::kFill_Style) {
@@ -169,7 +169,7 @@
didDraw(context, transform, fillRect, paint, opaque, fillsBounds);
}
-void OpaqueRegionSkia::didDrawPath(const PlatformContextSkia* context, const AffineTransform& transform, const SkPath& path, const SkPaint& paint)
+void OpaqueRegionSkia::didDrawPath(PlatformContextSkia* context, const AffineTransform& transform, const SkPath& path, const SkPaint& paint)
{
SkRect rect;
if (path.isRect(&rect)) {
@@ -188,7 +188,7 @@
}
}
-void OpaqueRegionSkia::didDrawPoints(const PlatformContextSkia* context, const AffineTransform& transform, SkCanvas::PointMode mode, int numPoints, const SkPoint points[], const SkPaint& paint)
+void OpaqueRegionSkia::didDrawPoints(PlatformContextSkia* context, const AffineTransform& transform, SkCanvas::PointMode mode, int numPoints, const SkPoint points[], const SkPaint& paint)
{
if (!numPoints)
return;
@@ -217,7 +217,7 @@
}
}
-void OpaqueRegionSkia::didDrawBounded(const PlatformContextSkia* context, const AffineTransform& transform, const SkRect& bounds, const SkPaint& paint)
+void OpaqueRegionSkia::didDrawBounded(PlatformContextSkia* context, const AffineTransform& transform, const SkRect& bounds, const SkPaint& paint)
{
bool opaque = paintIsOpaque(paint);
bool fillsBounds = false;
@@ -231,10 +231,13 @@
}
}
-void OpaqueRegionSkia::didDraw(const PlatformContextSkia* context, const AffineTransform& transform, const SkRect& rect, const SkPaint& paint, bool drawsOpaque, bool fillsBounds)
+void OpaqueRegionSkia::didDraw(PlatformContextSkia* context, const AffineTransform& transform, const SkRect& rect, const SkPaint& paint, bool drawsOpaque, bool fillsBounds)
{
SkRect targetRect = rect;
+ bool xfersOpaque = xfermodeIsOpaque(paint, drawsOpaque);
+ bool preservesOpaque = xfermodePreservesOpaque(paint, drawsOpaque);
+
// Apply the transform to device coordinate space.
SkMatrix canvasTransform = context->canvas()->getTotalMatrix();
if (!canvasTransform.mapRect(&targetRect))
@@ -249,17 +252,33 @@
if (!targetRect.intersect(SkIntToScalar(deviceClip.fLeft), SkIntToScalar(deviceClip.fTop), SkIntToScalar(deviceClip.fRight), SkIntToScalar(deviceClip.fBottom)))
return;
}
- if (!context->clippedToImage().isOpaque())
- fillsBounds = false;
+ // Apply any layers that we are drawing into.
+ for (SkCanvas::LayerIter it(context->canvas(), false); !it.done(); it.next()) {
+ // Apply the layer's clip (which is in device space)
+ const SkRegion& deviceLayerClip = it.clip();
+ if (deviceLayerClip.isEmpty() || !deviceLayerClip.isRect())
+ fillsBounds = false;
+ else {
+ SkIRect clipBounds = it.clip().getBounds();
+ if (!targetRect.intersect(SkIntToScalar(clipBounds.fLeft), SkIntToScalar(clipBounds.fTop), SkIntToScalar(clipBounds.fRight), SkIntToScalar(clipBounds.fBottom)))
+ return;
+ }
+
+ // Make sure the paint stays opaque through the layer.
+ bool drawsOpaque = paintIsOpaque(it.paint());
+ xfersOpaque = xfersOpaque && xfermodeIsOpaque(it.paint(), drawsOpaque);
+ preservesOpaque = preservesOpaque && xfermodePreservesOpaque(it.paint(), drawsOpaque);
+ }
+
// Apply the transform to the tracking space.
SkMatrix canvasToTargetTransform = transform;
if (!canvasToTargetTransform.mapRect(&targetRect))
fillsBounds = false;
- if (fillsBounds && xfermodeIsOpaque(paint, drawsOpaque))
+ if (fillsBounds && xfersOpaque)
markRectAsOpaque(targetRect);
- else if (SkRect::Intersects(targetRect, m_opaqueRect) && !xfermodePreservesOpaque(paint, drawsOpaque))
+ else if (SkRect::Intersects(targetRect, m_opaqueRect) && !preservesOpaque)
markRectAsNonOpaque(targetRect);
}
@@ -339,4 +358,5 @@
m_opaqueRect = vertical;
}
+
} // namespace WebCore
Modified: trunk/Source/WebCore/platform/graphics/skia/OpaqueRegionSkia.h (109513 => 109514)
--- trunk/Source/WebCore/platform/graphics/skia/OpaqueRegionSkia.h 2012-03-02 06:43:31 UTC (rev 109513)
+++ trunk/Source/WebCore/platform/graphics/skia/OpaqueRegionSkia.h 2012-03-02 06:47:13 UTC (rev 109514)
@@ -53,13 +53,15 @@
// The resulting opaque region as a single rect.
IntRect asRect() const;
- void didDrawRect(const PlatformContextSkia*, const AffineTransform&, const SkRect&, const SkPaint&, const SkBitmap*);
- void didDrawPath(const PlatformContextSkia*, const AffineTransform&, const SkPath&, const SkPaint&);
- void didDrawPoints(const PlatformContextSkia*, const AffineTransform&, SkCanvas::PointMode, int numPoints, const SkPoint[], const SkPaint&);
- void didDrawBounded(const PlatformContextSkia*, const AffineTransform&, const SkRect&, const SkPaint&);
+ // FIXME: make all the PlatformContextSkia* into a const pointer when Skia fixes LayerIter's SkCanvas*.
+ void didDrawRect(PlatformContextSkia*, const AffineTransform&, const SkRect&, const SkPaint&, const SkBitmap*);
+ void didDrawPath(PlatformContextSkia*, const AffineTransform&, const SkPath&, const SkPaint&);
+ void didDrawPoints(PlatformContextSkia*, const AffineTransform&, SkCanvas::PointMode, int numPoints, const SkPoint[], const SkPaint&);
+ void didDrawBounded(PlatformContextSkia*, const AffineTransform&, const SkRect&, const SkPaint&);
+
private:
- void didDraw(const PlatformContextSkia*, const AffineTransform&, const SkRect&, const SkPaint&, bool drawsOpaque, bool fillsBounds);
+ void didDraw(PlatformContextSkia*, const AffineTransform&, const SkRect&, const SkPaint&, bool drawsOpaque, bool fillsBounds);
void didDrawUnbounded(const SkPaint&, bool drawsOpaque);
void markRectAsOpaque(const SkRect&);
void markRectAsNonOpaque(const SkRect&);
Modified: trunk/Source/WebCore/platform/graphics/skia/PlatformContextSkia.cpp (109513 => 109514)
--- trunk/Source/WebCore/platform/graphics/skia/PlatformContextSkia.cpp 2012-03-02 06:43:31 UTC (rev 109513)
+++ trunk/Source/WebCore/platform/graphics/skia/PlatformContextSkia.cpp 2012-03-02 06:47:13 UTC (rev 109514)
@@ -267,11 +267,6 @@
canvas()->clipPath(clipPath, SkRegion::kIntersect_Op, true);
}
-const SkBitmap& PlatformContextSkia::clippedToImage() const
-{
- return m_state->m_imageBufferClip;
-}
-
void PlatformContextSkia::restore()
{
if (!m_state->m_imageBufferClip.empty()) {
Modified: trunk/Source/WebCore/platform/graphics/skia/PlatformContextSkia.h (109513 => 109514)
--- trunk/Source/WebCore/platform/graphics/skia/PlatformContextSkia.h 2012-03-02 06:43:31 UTC (rev 109513)
+++ trunk/Source/WebCore/platform/graphics/skia/PlatformContextSkia.h 2012-03-02 06:47:13 UTC (rev 109514)
@@ -100,8 +100,6 @@
// NOTE: |imageBuffer| may be deleted before the |restore| is invoked.
void beginLayerClippedToImage(const FloatRect&, const ImageBuffer*);
void clipPathAntiAliased(const SkPath&);
- // If non-empty, the layer is clipped to the bitmap.
- const SkBitmap& clippedToImage() const;
// Sets up the common flags on a paint for antialiasing, effects, etc.
// This is implicitly called by setupPaintFill and setupPaintStroke, but
Modified: trunk/Source/WebKit/chromium/ChangeLog (109513 => 109514)
--- trunk/Source/WebKit/chromium/ChangeLog 2012-03-02 06:43:31 UTC (rev 109513)
+++ trunk/Source/WebKit/chromium/ChangeLog 2012-03-02 06:47:13 UTC (rev 109514)
@@ -1,3 +1,14 @@
+2012-03-01 Dana Jansens <[email protected]>
+
+ [chromium] Make opaque paint tracker aware of SkCanvas layers
+ https://bugs.webkit.org/show_bug.cgi?id=79145
+
+ Reviewed by Stephen White.
+
+ * tests/PlatformContextSkiaTest.cpp:
+ (WebCore::TEST):
+ (WebCore):
+
2012-03-01 Hironori Bono <[email protected]>
Render overflow controls of an RTL element to its left-side.
Modified: trunk/Source/WebKit/chromium/tests/PlatformContextSkiaTest.cpp (109513 => 109514)
--- trunk/Source/WebKit/chromium/tests/PlatformContextSkiaTest.cpp 2012-03-02 06:43:31 UTC (rev 109513)
+++ trunk/Source/WebKit/chromium/tests/PlatformContextSkiaTest.cpp 2012-03-02 06:47:13 UTC (rev 109514)
@@ -641,4 +641,44 @@
EXPECT_EQ_RECT(IntRect(), platformContext.opaqueRegion().asRect());
}
+TEST(PlatformContextSkiaTest, contextTransparencyLayerTest)
+{
+ SkBitmap bitmap;
+ bitmap.setConfig(SkBitmap::kARGB_8888_Config, 400, 400);
+ bitmap.allocPixels();
+ bitmap.eraseColor(0);
+ SkCanvas canvas(bitmap);
+ AffineTransform transform;
+ transform.scale(2);
+
+ PlatformContextSkia platformContext(&canvas);
+ platformContext.setTrackOpaqueRegion(true);
+ platformContext.setOpaqueRegionTransform(transform);
+ GraphicsContext context(&platformContext);
+
+ Color opaque(1.0f, 0.0f, 0.0f, 1.0f);
+
+ context.fillRect(FloatRect(20, 20, 10, 10), opaque, ColorSpaceDeviceRGB, CompositeSourceOver);
+ EXPECT_EQ_RECT(IntRect(40, 40, 20, 20), platformContext.opaqueRegion().asRect());
+ EXPECT_PIXELS_MATCH(bitmap, transform.inverse().mapRect(platformContext.opaqueRegion().asRect()));
+
+ context.clearRect(FloatRect(20, 20, 10, 10));
+ EXPECT_EQ_RECT(IntRect(), platformContext.opaqueRegion().asRect());
+
+ context.beginTransparencyLayer(0.5);
+ context.save();
+ context.fillRect(FloatRect(20, 20, 10, 10), opaque, ColorSpaceDeviceRGB, CompositeSourceOver);
+ context.restore();
+ context.endTransparencyLayer();
+ EXPECT_EQ_RECT(IntRect(), platformContext.opaqueRegion().asRect());
+
+ context.clearRect(FloatRect(20, 20, 10, 10));
+ EXPECT_EQ_RECT(IntRect(), platformContext.opaqueRegion().asRect());
+
+ context.beginTransparencyLayer(0.5);
+ context.fillRect(FloatRect(20, 20, 10, 10), opaque, ColorSpaceDeviceRGB, CompositeSourceOver);
+ context.endTransparencyLayer();
+ EXPECT_EQ_RECT(IntRect(), platformContext.opaqueRegion().asRect());
+}
+
} // namespace
