Lots of compositing test failures after r167152
https://bugs.webkit.org/show_bug.cgi?id=131574

Reviewed by Darin Adler.

* platform/graphics/GraphicsLayer.cpp:
(WebCore::dumpChildren):
(WebCore::GraphicsLayer::dumpProperties):
Make child-dumping recursive so that we can easily skip layers up to any depth.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@167246 268f45cc-cd09-0410-ab3c-d52691b4dbfc
Optimize Canvas fill and drawImage with SourceIn, DestinationIn, SourceOut, and DestinationAtop using transparencyLayer.
https://bugs.webkit.org/show_bug.cgi?id=79659

Reviewed by Darin Adler.

Source/WebCore:
Optimize fill() and fillRect() operations in Canvas on composited contexts by
10 to 20 times on CG.

Replacing the ImageBuffer code by transparency layers allows the
graphics library to optimize the drawing.

Doing the same for drawImage() would give performance regressions.

An inline function will create a transparency layer for CG. Cairo graphics
does not composite correctly when a transparency layer gets created.
The inline function is just a NOOP for Cairo.

This fixes bug 131303 as well.

Added performance tests with r167124 already.

* html/canvas/CanvasRenderingContext2D.cpp:
(WebCore::CanvasRenderingContext2D::fillInternal):
(WebCore::CanvasRenderingContext2D::strokeInternal):
(WebCore::CanvasRenderingContext2D::beginCompositeLayer):
(WebCore::CanvasRenderingContext2D::endCompositeLayer):
(WebCore::CanvasRenderingContext2D::fillRect):
(WebCore::CanvasRenderingContext2D::strokeRect):
(WebCore::CanvasRenderingContext2D::drawTextInternal):
(WebCore::CanvasRenderingContext2D::fullCanvasCompositedFill): Deleted.
* html/canvas/CanvasRenderingContext2D.h:

LayoutTests:
Unskip previously failing tests.

* platform/gtk/TestExpectations:


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@167248 268f45cc-cd09-0410-ab3c-d52691b4dbfc
Array.prototype.concat should allocate output storage only once.
<https://webkit.org/b/131609>

Do a first pass across 'this' and any arguments to compute the
final size of the resulting array from Array.prototype.concat.
This avoids having to grow the output incrementally as we go.

This also includes two other micro-optimizations:

- Mark getProperty() with ALWAYS_INLINE.

- Use JSArray::length() instead of taking the generic property
  lookup path when we know an argument is an Array.

My MBP says ~3% progression on Dromaeo/jslib-traverse-jquery.

Reviewed by Darin Adler.

* runtime/ArrayPrototype.cpp:
(JSC::getProperty):
(JSC::arrayProtoFuncConcat):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@167249 268f45cc-cd09-0410-ab3c-d52691b4dbfc
Fixed potential integer truncation.
https://bugs.webkit.org/show_bug.cgi?id=131615

Patch by Alex Christensen <achristensen@webkit.org> on 2014-04-14
Reviewed by Darin Adler.

* assembler/X86Assembler.h:
(JSC::X86Assembler::fillNops):
Truncate the size_t to an unsigned after it is limited to 15 instead of before.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@167250 268f45cc-cd09-0410-ab3c-d52691b4dbfc