[Android] Enable composited selection updates

content/browser/renderer_host/render_widget_host_view_android.h

 // Copyright (c) 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 CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_ANDROID_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_ANDROID_H_
 
 #include <map>
 #include <queue>
 
@@ skipping 328 matching lines @@
     FLUSH_INPUT = 1 << 0,
     BEGIN_FRAME = 1 << 1,
     PERSISTENT_BEGIN_FRAME = 1 << 2
   };
   void RequestVSyncUpdate(uint32 requests);
   void StartObservingRootWindow();
   void StopObservingRootWindow();
   void SendBeginFrame(base::TimeTicks frame_time, base::TimeDelta vsync_period);
   bool Animate(base::TimeTicks frame_time);
 
-  void OnContentScrollingChange();
-  bool IsContentScrolling() const;
-
-  float GetDpiScale() const;
-
   // Handles all unprocessed and pending readback requests.
   void AbortPendingReadbackRequests();
 
   // The model object.
   RenderWidgetHostImpl* host_;
 
   // Used to control action dispatch at the next |OnVSync()| call.
   uint32 outstanding_vsync_requests_;
 
   bool is_showing_;
@@ skipping 29 matching lines @@
   // Provides gesture synthesis given a stream of touch events (derived from
   // Android MotionEvent's) and touch event acks.
   ui::FilteredGestureProvider gesture_provider_;
 
   // Handles gesture based text selection
   GestureTextSelector gesture_text_selector_;
 
   // Manages selection handle rendering and manipulation.
   // This will always be NULL if |content_view_core_| is NULL.
   scoped_ptr<TouchSelectionController> selection_controller_;
-  bool touch_scrolling_;
-  size_t potentially_active_fling_count_;
 
   int accelerated_surface_route_id_;
 
   // Size to use if we have no backing ContentViewCore
   gfx::Size default_size_;
 
   const bool using_synchronous_compositor_;
 
   scoped_ptr<DelegatedFrameEvictor> frame_evictor_;
 
@@ skipping 19 matching lines @@
   gfx::Vector2dF last_scroll_offset_;
 
   base::WeakPtrFactory<RenderWidgetHostViewAndroid> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostViewAndroid);
 };
 
 } // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_ANDROID_H_