cc: Make PictureLayerImpl use a better choice for animated raster scale.

cc/test/animation_test_common.h

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CC_TEST_ANIMATION_TEST_COMMON_H_
 #define CC_TEST_ANIMATION_TEST_COMMON_H_
 
 #include "cc/animation/animation.h"
 #include "cc/animation/animation_curve.h"
 #include "cc/animation/layer_animation_controller.h"
@@ skipping 27 matching lines @@
  public:
   explicit FakeTransformTransition(double duration);
   virtual ~FakeTransformTransition();
 
   virtual double Duration() const override;
   virtual gfx::Transform GetValue(double time) const override;
   virtual bool AnimatedBoundsForBox(const gfx::BoxF& box,
                                     gfx::BoxF* bounds) const override;
   virtual bool AffectsScale() const override;
   virtual bool IsTranslation() const override;
-  virtual bool MaximumScale(float* max_scale) const override;
+  virtual bool MaximumTargetScale(bool forward_direction,
+                                  float* max_scale) const override;
 
   virtual scoped_ptr<AnimationCurve> Clone() const override;
 
  private:
   double duration_;
 };
 
 class FakeFloatTransition : public FloatAnimationCurve {
  public:
   FakeFloatTransition(double duration, float from, float to);
@@ skipping 113 matching lines @@
                              float end_brightness);
 
 int AddAnimatedFilterToLayer(LayerImpl* layer,
                              double duration,
                              float start_brightness,
                              float end_brightness);
 
 }  // namespace cc
 
 #endif  // CC_TEST_ANIMATION_TEST_COMMON_H_