Implement Gesture event hit testing/forwarding for OOPIF.

content/browser/renderer_host/render_widget_host_view_aura.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_AURA_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_AURA_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 184 matching lines @@
   void LockCompositingSurface() override;
   void UnlockCompositingSurface() override;
   uint32_t GetSurfaceIdNamespace() override;
   uint32_t SurfaceIdNamespaceAtPoint(cc::SurfaceHittestDelegate* delegate,
                                      const gfx::Point& point,
                                      gfx::Point* transformed_point) 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;
   void TransformPointToLocalCoordSpace(const gfx::Point& point,
                                        cc::SurfaceId original_surface,
                                        gfx::Point* transformed_point) override;
 
 #if defined(OS_WIN)
   void SetParentNativeViewAccessible(
       gfx::NativeViewAccessible accessible_parent) override;
   gfx::NativeViewId GetParentForWindowlessPlugin() const override;
 #endif
 
@@ skipping 481 matching lines @@
   gfx::Vector2dF disambiguation_scroll_offset_;
 
   BeginFrameObserverProxy begin_frame_observer_proxy_;
 
   // This flag when set ensures that we send over a notification to blink that
   // the current view has focus. Defaults to false.
   bool set_focus_on_mouse_down_or_key_event_;
 
   float device_scale_factor_;
 
+  // Allows tests to send gesture events for testing without first sending a
+  // corresponding touch sequence, as would be required by
+  // RenderWidgetHostInputEventRouter.
+  bool disable_input_event_router_for_testing_;
+
   base::WeakPtrFactory<RenderWidgetHostViewAura> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostViewAura);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_AURA_H_