Blink CompositorAnimations: Add more tests for integration with CC.

third_party/WebKit/Source/platform/blink_platform.gypi

 {
   'includes': [
     'platform_generated.gypi',
   ],
   'variables': {
     'platform_files': [
       'AsyncFileSystemCallbacks.h',
       'CalculationValue.h',
       'CheckedInt.h',
       'Clock.cpp',
@@ skipping 912 matching lines @@
       'text/TextRun.h',
       'text/TextRunIterator.h',
       'text/TextStream.cpp',
       'text/TextStream.h',
       'text/UnicodeBidi.h',
       'text/UnicodeRange.cpp',
       'text/UnicodeRange.h',
       'text/UnicodeUtilities.cpp',
       'text/UnicodeUtilities.h',
       'threading/BackgroundTaskRunner.cpp',
-      'threading/BackgroundTaskRunner.h',      
+      'threading/BackgroundTaskRunner.h',
       'transforms/AffineTransform.cpp',
       'transforms/AffineTransform.h',
       'transforms/IdentityTransformOperation.h',
       'transforms/InterpolatedTransformOperation.cpp',
       'transforms/InterpolatedTransformOperation.h',
       'transforms/Matrix3DTransformOperation.cpp',
       'transforms/Matrix3DTransformOperation.h',
       'transforms/MatrixTransformOperation.cpp',
       'transforms/MatrixTransformOperation.h',
       'transforms/PerspectiveTransformOperation.cpp',
@@ skipping 148 matching lines @@
       'graphics/test/FakeGraphicsLayerFactory.cpp',
       'graphics/test/FakeGraphicsLayerFactory.h',
       'testing/GeometryPrinters.cpp',
       'testing/GeometryPrinters.h',
       'testing/PaintPrinters.cpp',
       'testing/PaintPrinters.h',
       'testing/TestingPlatformSupport.cpp',
       'testing/TestingPlatformSupport.h',
       'testing/TransformPrinters.cpp',
       'testing/TransformPrinters.h',
+      'testing/WebLayerMock.h',
     ],
     'conditions': [
       ['OS=="win"',
         {
           'platform_test_files': [
             'text/LocaleWinTest.cpp',
           ],
         }
       ],
       ['OS=="mac"',
@@ skipping 13 matching lines @@
       ['OS!="mac"',
         {
           'platform_test_files': [
             'scroll/ScrollAnimatorTest.cpp',
           ],
         }
       ],
     ],
   },
 }