SyntheticGestureTarget implementation for injecting synthetic input events

content/port/browser/render_widget_host_view_port.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_PORT_BROWSER_RENDER_WIDGET_HOST_VIEW_PORT_H_
 #define CONTENT_PORT_BROWSER_RENDER_WIDGET_HOST_VIEW_PORT_H_
 
 #include "base/callback.h"
+#include "base/memory/scoped_ptr.h"
 #include "base/process/kill.h"
 #include "base/strings/string16.h"
 #include "cc/output/compositor_frame.h"
 #include "content/common/content_export.h"
 #include "content/port/browser/event_with_latency_info.h"
 #include "content/port/common/input_event_ack_state.h"
 #include "content/public/browser/render_widget_host_view.h"
 #include "ipc/ipc_listener.h"
 #include "third_party/WebKit/public/web/WebPopupType.h"
 #include "third_party/WebKit/public/web/WebTextDirection.h"
@@ skipping 16 matching lines @@
 }
 
 namespace WebKit {
 struct WebScreenInfo;
 }
 
 namespace content {
 class BackingStore;
 class RenderWidgetHostViewFrameSubscriber;
 class SyntheticGesture;
+class SyntheticGestureTarget;
 struct WebPluginGeometry;
 struct NativeWebKeyboardEvent;
 
 // This is the larger RenderWidgetHostView interface exposed only
 // within content/ and to embedders looking to port to new platforms.
 // RenderWidgetHostView class hierarchy described in render_widget_host_view.h.
 class CONTENT_EXPORT RenderWidgetHostViewPort : public RenderWidgetHostView,
                                                 public IPC::Listener {
  public:
   virtual ~RenderWidgetHostViewPort() {}
@@ skipping 236 matching lines @@
   virtual InputEventAckState FilterInputEvent(
       const WebKit::WebInputEvent& input_event) = 0;
 
   // Called by the host when it requires an input flush; the flush call should
   // by synchronized with BeginFrame.
   virtual void OnSetNeedsFlushInput() = 0;
 
   // Called by the host when the input flush has completed.
   virtual void OnDidFlushInput() = 0;
 
+  virtual scoped_ptr<SyntheticGestureTarget> CreateSyntheticGestureTarget() = 0;

[jam, 2013/11/06 17:47:26]

nit: please add a comment

+
   virtual void GestureEventAck(int gesture_event_type,
                                InputEventAckState ack_result) = 0;
 
   virtual void OnOverscrolled(gfx::Vector2dF accumulated_overscroll,
                               gfx::Vector2dF current_fling_velocity) = 0;
 
   virtual void SetPopupType(WebKit::WebPopupType popup_type) = 0;
   virtual WebKit::WebPopupType GetPopupType() = 0;
 
   virtual BrowserAccessibilityManager*
@@ skipping 32 matching lines @@
 
 #if defined(OS_WIN) && defined(USE_AURA)
   virtual void SetParentNativeViewAccessible(
       gfx::NativeViewAccessible accessible_parent) = 0;
 #endif
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PORT_BROWSER_RENDER_WIDGET_HOST_VIEW_PORT_H_