Notify OverscrollController of gesture events in plugins.

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 <set>
 #include <utility>
 
 #include "base/auto_reset.h"
@@ skipping 1099 matching lines @@
     // of indicating that touchpad scroll has ended, we don't actually want
     // a fling animation. Note: Similar code exists in
     // RenderWidgetHostViewChildFrame::FilterInputEvent()
     return INPUT_EVENT_ACK_STATE_NO_CONSUMER_EXISTS;
   }
 
   return consumed ? INPUT_EVENT_ACK_STATE_CONSUMED
                   : INPUT_EVENT_ACK_STATE_NOT_CONSUMED;
 }
 
+InputEventAckState RenderWidgetHostViewAura::FilterChildGestureEvent(
+    const blink::WebGestureEvent& gesture_event) {
+  if (overscroll_controller_ &&
+      overscroll_controller_->WillHandleEvent(gesture_event))
+    return INPUT_EVENT_ACK_STATE_CONSUMED;
+  return INPUT_EVENT_ACK_STATE_NOT_CONSUMED;
+}
+
 BrowserAccessibilityManager*
 RenderWidgetHostViewAura::CreateBrowserAccessibilityManager(
     BrowserAccessibilityDelegate* delegate, bool for_root_frame) {
   BrowserAccessibilityManager* manager = NULL;
 #if defined(OS_WIN)
   manager = new BrowserAccessibilityManagerWin(
       BrowserAccessibilityManagerWin::GetEmptyDocument(), delegate);
 #else
   manager = BrowserAccessibilityManager::Create(
       BrowserAccessibilityManager::GetEmptyDocument(), delegate);
@@ skipping 967 matching lines @@
   host_->SendCursorVisibilityState(is_visible);
 }
 
 void RenderWidgetHostViewAura::SetOverscrollControllerEnabled(bool enabled) {
   if (!enabled)
     overscroll_controller_.reset();
   else if (!overscroll_controller_)
     overscroll_controller_.reset(new OverscrollController());
 }
 
+void RenderWidgetHostViewAura::SetOverscrollControllerForTesting(
+    std::unique_ptr<OverscrollController> controller) {
+  overscroll_controller_ = std::move(controller);
+}
+
 void RenderWidgetHostViewAura::SnapToPhysicalPixelBoundary() {
   // The top left corner of our view in window coordinates might not land on a
   // device pixel boundary if we have a non-integer device scale. In that case,
   // to avoid the web contents area looking blurry we translate the web contents
   // in the +x, +y direction to land on the nearest pixel boundary. This may
   // cause the bottom and right edges to be clipped slightly, but that's ok.
 #if defined(OS_CHROMEOS)
   aura::Window* snapped = window_->GetToplevelWindow();
 #else
   aura::Window* snapped = window_->GetRootWindow();
@@ skipping 300 matching lines @@
 }
 
 void RenderWidgetHostViewAura::UpdateNeedsBeginFramesInternal() {
   if (!delegated_frame_host_)
     return;
   delegated_frame_host_->SetNeedsBeginFrames(needs_begin_frames_ ||
                                              needs_flush_input_);
 }
 
 }  // namespace content