Introduce ViewRoot to forward input/view events to native

content/browser/android/content_view_core_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 CONTENT_BROWSER_ANDROID_CONTENT_VIEW_CORE_IMPL_H_
 #define CONTENT_BROWSER_ANDROID_CONTENT_VIEW_CORE_IMPL_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 360 matching lines @@
   gfx::Size GetViewSizeWithOSKHidden() const;
 
   void SetAccessibilityEnabledInternal(bool enabled);
 
   bool IsFullscreenRequiredForOrientationLock() const;
 
   // --------------------------------------------------------------------------
   // Methods called from native code
   // --------------------------------------------------------------------------
 
-  gfx::Size GetPhysicalBackingSize() const;
   gfx::Size GetViewportSizeDip() const;
   bool DoBrowserControlsShrinkBlinkSize() const;
   float GetTopControlsHeightDip() const;
   float GetBottomControlsHeightDip() const;
 
   void MoveRangeSelectionExtent(const gfx::PointF& extent);
 
   void SelectBetweenCoordinates(const gfx::PointF& base,
                                 const gfx::PointF& extent);
 
@@ skipping 70 matching lines @@
   scoped_refptr<GinJavaBridgeDispatcherHost> java_bridge_dispatcher_host_;
 
   DISALLOW_COPY_AND_ASSIGN(ContentViewCoreImpl);
 };
 
 bool RegisterContentViewCore(JNIEnv* env);
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_ANDROID_CONTENT_VIEW_CORE_IMPL_H_