Reland "Refactor ContentViewClient (4/6)"

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 <stddef.h>
 #include <stdint.h>
 
@@ skipping 360 matching lines @@
 
   SynchronousCompositorClient* synchronous_compositor_client_;
 
   std::unique_ptr<DelegatedFrameEvictor> frame_evictor_;
 
   bool observing_root_window_;
 
   // The last scroll offset of the view.
   gfx::Vector2dF last_scroll_offset_;
 
+  float prev_top_shown_pix_;
+  float prev_bottom_shown_pix_;
+
   base::WeakPtrFactory<RenderWidgetHostViewAndroid> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostViewAndroid);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_ANDROID_H_