Make scroll offset type of float in cc

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 90 matching lines @@
 };
 
 class FakeInactiveLayerAnimationValueObserver
     : public FakeLayerAnimationValueObserver {
  public:
   virtual bool IsActive() const OVERRIDE;
 };
 
 class FakeLayerAnimationValueProvider : public LayerAnimationValueProvider {
  public:
-  virtual gfx::Vector2dF ScrollOffsetForAnimation() const OVERRIDE;
+  virtual gfx::ScrollOffset ScrollOffsetForAnimation() const OVERRIDE;
 
-  void set_scroll_offset(const gfx::Vector2dF& scroll_offset) {
+  void set_scroll_offset(const gfx::ScrollOffset& scroll_offset) {
     scroll_offset_ = scroll_offset;
   }
 
  private:
-  gfx::Vector2dF scroll_offset_;
+  gfx::ScrollOffset scroll_offset_;
 };
 
 int AddOpacityTransitionToController(LayerAnimationController* controller,
                                      double duration,
                                      float start_opacity,
                                      float end_opacity,
                                      bool use_timing_function);
 
 int AddAnimatedTransformToController(LayerAnimationController* controller,
                                      double duration,
@@ skipping 43 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_