Introduce ViewRoot to forward input/view events to native

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 14 matching lines @@
 #include "content/browser/renderer_host/delegated_frame_evictor.h"
 #include "content/browser/renderer_host/ime_adapter_android.h"
 #include "content/browser/renderer_host/input/stylus_text_selector.h"
 #include "content/browser/renderer_host/render_widget_host_view_base.h"
 #include "content/browser/renderer_host/text_input_manager.h"
 #include "content/common/content_export.h"
 #include "content/public/browser/readback_types.h"
 #include "gpu/command_buffer/common/mailbox.h"
 #include "third_party/skia/include/core/SkColor.h"
 #include "ui/android/view_android.h"
+#include "ui/android/view_client.h"
 #include "ui/android/window_android_observer.h"
 #include "ui/events/android/motion_event_android.h"
 #include "ui/events/gesture_detection/filtered_gesture_provider.h"
 #include "ui/gfx/geometry/size.h"
 #include "ui/gfx/geometry/vector2d_f.h"
 #include "ui/gfx/selection_bound.h"
 #include "ui/touch_selection/touch_selection_controller.h"
 
 class GURL;
 
@@ skipping 13 matching lines @@
 class SynchronousCompositorHost;
 class SynchronousCompositorClient;
 struct NativeWebKeyboardEvent;
 
 // -----------------------------------------------------------------------------
 // See comments in render_widget_host_view.h about this class and its members.
 // -----------------------------------------------------------------------------
 class CONTENT_EXPORT RenderWidgetHostViewAndroid
     : public RenderWidgetHostViewBase,
       public ui::GestureProviderClient,
+      public ui::ViewClient,
       public ui::WindowAndroidObserver,
       public DelegatedFrameEvictorClient,
       public StylusTextSelectorClient,
       public ui::TouchSelectionControllerClient,
       public content::ContentViewCoreImplObserver,
       public content::TextInputManager::Observer {
  public:
   RenderWidgetHostViewAndroid(RenderWidgetHostImpl* widget,
                               ContentViewCoreImpl* content_view_core);
   ~RenderWidgetHostViewAndroid() override;
@@ skipping 72 matching lines @@
   cc::FrameSinkId GetFrameSinkId() override;
   void ShowDisambiguationPopup(const gfx::Rect& rect_pixels,
                                const SkBitmap& zoomed_bitmap) override;
   std::unique_ptr<SyntheticGestureTarget> CreateSyntheticGestureTarget()
       override;
   void LockCompositingSurface() override;
   void UnlockCompositingSurface() override;
   void OnDidNavigateMainFrameToNewPage() override;
   void SetNeedsBeginFrames(bool needs_begin_frames) override;
 
+  // ui::ViewClient implementation.
+  void OnPhysicalBackingSizeChanged(int width, int height) override;
+
   // ui::GestureProviderClient implementation.
   void OnGestureEvent(const ui::GestureEventData& gesture) override;
 
   // ui::WindowAndroidObserver implementation.
   void OnCompositingDidCommit() override;
   void OnRootWindowVisibilityChanged(bool visible) override;
   void OnAttachCompositor() override;
   void OnDetachCompositor() override;
   void OnVSync(base::TimeTicks frame_time,
                base::TimeDelta vsync_period) override;
@@ skipping 215 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_