Notify OverscrollController of gesture events in plugins.

content/browser/renderer_host/render_widget_host_view_base.cc

 // 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.
 
 #include "content/browser/renderer_host/render_widget_host_view_base.h"
 
 #include "base/logging.h"
 #include "build/build_config.h"
 #include "content/browser/accessibility/browser_accessibility_manager.h"
 #include "content/browser/gpu/gpu_data_manager_impl.h"
@@ skipping 170 matching lines @@
 bool RenderWidgetHostViewBase::IsMouseLocked() {
   return mouse_locked_;
 }
 
 InputEventAckState RenderWidgetHostViewBase::FilterInputEvent(
     const blink::WebInputEvent& input_event) {
   // By default, input events are simply forwarded to the renderer.
   return INPUT_EVENT_ACK_STATE_NOT_CONSUMED;
 }
 
+InputEventAckState RenderWidgetHostViewBase::FilterChildGestureEvent(
+    const blink::WebGestureEvent& gesture_event) {
+  // By default, do nothing with the child's gesture events.
+  return INPUT_EVENT_ACK_STATE_NOT_CONSUMED;
+}
+
 void RenderWidgetHostViewBase::WheelEventAck(
     const blink::WebMouseWheelEvent& event,
     InputEventAckState ack_result) {
 }
 
 void RenderWidgetHostViewBase::GestureEventAck(
     const blink::WebGestureEvent& event,
     InputEventAckState ack_result) {
 }
 
@@ skipping 288 matching lines @@
 
 bool RenderWidgetHostViewBase::IsChildFrameForTesting() const {
   return false;
 }
 
 cc::SurfaceId RenderWidgetHostViewBase::SurfaceIdForTesting() const {
   return cc::SurfaceId();
 }
 
 }  // namespace content