SyntheticGestureTarget implementation for injecting synthetic input events

content/browser/renderer_host/render_widget_host_view_base.cc

Index: content/browser/renderer_host/render_widget_host_view_base.cc
diff --git a/content/browser/renderer_host/render_widget_host_view_base.cc b/content/browser/renderer_host/render_widget_host_view_base.cc
index 5ca099cd954cb869964a8206e19aba7808c86dc9..d67ffa437189989fc1adf5e7a7eb4a07b2de1c2d 100644
--- a/content/browser/renderer_host/render_widget_host_view_base.cc
+++ b/content/browser/renderer_host/render_widget_host_view_base.cc
@@ -8,6 +8,7 @@
 #include "content/browser/accessibility/browser_accessibility_manager.h"
 #include "content/browser/gpu/gpu_data_manager_impl.h"
 #include "content/browser/renderer_host/basic_mouse_wheel_smooth_scroll_gesture.h"
+#include "content/browser/renderer_host/input/synthetic_gesture_target_base.h"
 #include "content/browser/renderer_host/render_process_host_impl.h"
 #include "content/browser/renderer_host/render_widget_host_impl.h"
 #include "content/port/browser/render_widget_host_view_frame_subscriber.h"
@@ -528,6 +529,14 @@ void RenderWidgetHostViewBase::ProcessAckedTouchEvent(
     const TouchEventWithLatencyInfo& touch, InputEventAckState ack_result) {
 }
 
+scoped_ptr<SyntheticGestureTarget>
+RenderWidgetHostViewBase::CreateSyntheticGestureTarget() {
+  RenderWidgetHostImpl* host =
+      RenderWidgetHostImpl::From(GetRenderWidgetHost());
+  return scoped_ptr<SyntheticGestureTarget>(
+      new SyntheticGestureTargetBase(host));
+}
+
 // Platform implementation should override this method to allow frame
 // subscription. Frame subscriber is set to RenderProcessHost, which is
 // platform independent. It should be set to the specific presenter on each