[chromium] Use SkMatrix44 instead of WebTransformationMatrix in animation APIs
https://bugs.webkit.org/show_bug.cgi?id=111791

Patch by James Robinson <jamesr@chromium.org> on 2013-03-11
Reviewed by Adrienne Walker.

Source/Platform:

This adds SkMatrix44 overrides for animation APIs that deal with matrices and slims the interface
down for WebTransformationMatrix to the minimum needed to compile. With this patch, there are no
live codepaths that use WebTransformationMatrix but some downstream code still needs a type and a
few functions to compile. After the downstream code is patched this type can go away completely.

* chromium/public/WebLayer.h:
(WebKit):
(WebLayer):
* chromium/public/WebTransformAnimationCurve.h:
(WebTransformAnimationCurve):
* chromium/public/WebTransformOperations.h:
(WebTransformOperations):
* chromium/public/WebTransformationMatrix.h:
(WebTransformationMatrix):

Source/WebCore:

Adds a new utility function to convert a TransformationMatrix to an SkMatrix44 and
uses it in AnimationTranslationUtil and GraphicsLayerChromium.

* WebCore.gypi:
* platform/chromium/support/WebTransformationMatrix.cpp:
(WebKit::WebTransformationMatrix::WebTransformationMatrix):
* platform/graphics/chromium/AnimationTranslationUtil.cpp:
(WebCore::toWebTransformOperations):
* platform/graphics/chromium/GraphicsLayerChromium.cpp:
(WebCore::GraphicsLayerChromium::updateTransform):
(WebCore::GraphicsLayerChromium::updateChildrenTransform):
* platform/graphics/chromium/TransformSkMatrix44Conversions.cpp:
(WebCore::TransformSkMatrix44Conversions::convert):
* platform/graphics/chromium/TransformSkMatrix44Conversions.h:
(TransformSkMatrix44Conversions):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@145442 268f45cc-cd09-0410-ab3c-d52691b4dbfc