Remove testing::CloneToPassOwnPtr; it is unused.

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 17 matching lines @@
 #include "core/animation/CompositorAnimations.h"
 #include "public/platform/Platform.h"
 #include "public/platform/WebCompositorSupport.h"
 #include "public/platform/WebFloatAnimationCurve.h"
 #include "public/platform/WebFloatKeyframe.h"
 #include "wtf/PassOwnPtr.h"
 
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
 
-
-namespace testing {
-
-template<typename T>
-PassOwnPtr<T> CloneToPassOwnPtr(T& o)
-{
-    return adoptPtr(new T(o));
-}
-
-} // namespace testing
-
-
 // Test helpers and mocks for Web* types
 // -----------------------------------------------------------------------
 namespace blink {
 
 // WebFloatKeyframe is a plain struct, so we just create an == operator
 // for it.
 inline bool operator==(const WebFloatKeyframe& a, const WebFloatKeyframe& b)
 {
     return a.time == b.time && a.value == b.value;
 }
@@ skipping 120 matching lines @@
     void setCompositorForTesting(WebCompositorSupportMock& mock)
     {
         ASSERT(!m_mockCompositor);
         m_mockCompositor = &mock;
     }
 };
 
 }
 
 #endif