Replace cc::ViewportSelectionBound with gfx::SelectionBound

cc/trees/layer_tree_impl.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_TREES_LAYER_TREE_IMPL_H_
 #define CC_TREES_LAYER_TREE_IMPL_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 388 matching lines @@
 
   LayerImpl* FindLayerThatIsHitByPoint(const gfx::PointF& screen_space_point);
 
   LayerImpl* FindLayerThatIsHitByPointInTouchHandlerRegion(
       const gfx::PointF& screen_space_point);
 
   void RegisterSelection(const LayerSelection& selection);
 
   // Compute the current selection handle location and visbility with respect to
   // the viewport.
-  void GetViewportSelection(ViewportSelection* selection);
+  void GetViewportSelection(Selection<gfx::SelectionBound>* selection);
 
   void set_top_controls_shrink_blink_size(bool shrink);
   bool top_controls_shrink_blink_size() const {
     return top_controls_shrink_blink_size_;
   }
   bool SetCurrentTopControlsShownRatio(float ratio);
   float CurrentTopControlsShownRatio() const {
     return top_controls_shown_ratio_->Current(IsActiveTree());
   }
   void set_top_controls_height(float top_controls_height);
@@ skipping 158 matching lines @@
 
   std::unique_ptr<PendingPageScaleAnimation> pending_page_scale_animation_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(LayerTreeImpl);
 };
 
 }  // namespace cc
 
 #endif  // CC_TREES_LAYER_TREE_IMPL_H_