Make it possible for the scroll offset delegate to intercept fling.

content/browser/renderer_host/render_widget_host_view_aura.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_aura.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
@@ skipping 1925 matching lines @@
 }
 
 void RenderWidgetHostViewAura::GetScreenInfo(WebScreenInfo* results) {
   GetScreenInfoForWindow(results, window_->GetRootWindow() ? window_ : NULL);
 }
 
 gfx::Rect RenderWidgetHostViewAura::GetBoundsInRootWindow() {
   return window_->GetToplevelWindow()->GetBoundsInScreen();
 }
 
-void RenderWidgetHostViewAura::GestureEventAck(int gesture_event_type) {
+void RenderWidgetHostViewAura::GestureEventAck(int gesture_event_type,
+                                               InputEventAckState ack_result) {
   if (touch_editing_client_)
     touch_editing_client_->GestureEventAck(gesture_event_type);
 }
 
 void RenderWidgetHostViewAura::ProcessAckedTouchEvent(
     const TouchEventWithLatencyInfo& touch, InputEventAckState ack_result) {
   ScopedVector<ui::TouchEvent> events;
   if (!MakeUITouchEventsFromWebTouchEvents(touch, &events,
                                            SCREEN_COORDINATES))
     return;
@@ skipping 1211 matching lines @@
     RenderWidgetHost* widget) {
   return new RenderWidgetHostViewAura(widget);
 }
 
 // static
 void RenderWidgetHostViewPort::GetDefaultScreenInfo(WebScreenInfo* results) {
   GetScreenInfoForWindow(results, NULL);
 }
 
 }  // namespace content