Animation: Cancel same-property animations on compositor

Source/core/animation/CompositorAnimationsTestHelper.h

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
  *     notice, this list of conditions and the following disclaimer in the
@@ skipping 127 matching lines @@
         MOCK_METHOD4(createAnimation, WebCompositorAnimation*(const WebCompositorAnimationCurve& curve, WebCompositorAnimation::TargetProperty target, int groupId, int animationId));
         MOCK_METHOD0(createFloatAnimationCurve, WebFloatAnimationCurve*());
     };
 
 private:
     class PlatformProxy : public Platform {
     public:
         PlatformProxy(WebCompositorSupportMock** compositor) : m_compositor(compositor) { }
 
         virtual void cryptographicallyRandomValues(unsigned char* buffer, size_t length) { ASSERT_NOT_REACHED(); }
+        const unsigned char* getTraceCategoryEnabledFlag(const char* categoryName) override

[dstockwell, 2015/01/30 02:39:23]

This seems unrelated?

[loyso (OOO), 2015/01/30 02:53:11]

Trace macroses just crash with our previous PlatformProxy.

+        {
+            static const unsigned char tracingIsDisabled = 0;
+            return &tracingIsDisabled;
+        }
+
     private:
         WebCompositorSupportMock** m_compositor;
         virtual WebCompositorSupport* compositorSupport() override { return *m_compositor; }
     };
 
     WebCompositorSupportMock* m_mockCompositor;
     PlatformProxy m_proxyPlatform;
 
 protected:
     Platform* m_platform;
@@ skipping 13 matching lines @@
     void setCompositorForTesting(WebCompositorSupportMock& mock)
     {
         ASSERT(!m_mockCompositor);
         m_mockCompositor = &mock;
     }
 };
 
 }
 
 #endif