Implement Gesture event hit testing/forwarding for OOPIF.

content/browser/frame_host/render_widget_host_view_child_frame.h

 // Copyright 2014 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_FRAME_HOST_RENDER_WIDGET_HOST_VIEW_CHILD_FRAME_H_
 #define CONTENT_BROWSER_FRAME_HOST_RENDER_WIDGET_HOST_VIEW_CHILD_FRAME_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 123 matching lines @@
   void ProcessAckedTouchEvent(const TouchEventWithLatencyInfo& touch,
                               InputEventAckState ack_result) override;
   bool LockMouse() override;
   void UnlockMouse() override;
   uint32_t GetSurfaceIdNamespace() override;
   void ProcessKeyboardEvent(const NativeWebKeyboardEvent& event) override;
   void ProcessMouseEvent(const blink::WebMouseEvent& event) override;
   void ProcessMouseWheelEvent(const blink::WebMouseWheelEvent& event) override;
   void ProcessTouchEvent(const blink::WebTouchEvent& event,
                          const ui::LatencyInfo& latency) override;
+  void ProcessGestureEvent(const blink::WebGestureEvent& event,
+                           const ui::LatencyInfo& latency) override;
   gfx::Point TransformPointToRootCoordSpace(const gfx::Point& point) override;
 
 #if defined(OS_MACOSX)
   // RenderWidgetHostView implementation.
   void SetActive(bool active) override;
   void SetWindowVisibility(bool visible) override;
   void WindowFrameChanged() override;
   void ShowDefinitionForSelection() override;
   bool SupportsSpeech() const override;
   void SpeakSelection() override;
@@ skipping 82 matching lines @@
   // it convenient to swap() when processing the list.
   FrameSwappedCallbackList frame_swapped_callbacks_;
 
   base::WeakPtrFactory<RenderWidgetHostViewChildFrame> weak_factory_;
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostViewChildFrame);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_FRAME_HOST_RENDER_WIDGET_HOST_VIEW_CHILD_FRAME_H_