Move handling of DraggableRegionsChanged notification from "view" to "frame".

content/renderer/render_view_impl.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/renderer/render_view_impl.h"
 
 #include <algorithm>
 #include <cmath>
 #include <memory>
 
@@ skipping 2345 matching lines @@
 }
 
 double RenderViewImpl::zoomLevelToZoomFactor(double zoom_level) const {
   return ZoomLevelToZoomFactor(zoom_level);
 }
 
 double RenderViewImpl::zoomFactorToZoomLevel(double factor) const {
   return ZoomFactorToZoomLevel(factor);
 }
 
-void RenderViewImpl::DraggableRegionsChanged() {
-  for (auto& observer : observers_)
-    observer.DraggableRegionsChanged(webview()->MainFrame());
-}
-
 void RenderViewImpl::PageImportanceSignalsChanged() {
   if (!webview() || !main_render_frame_)
     return;
 
   auto* web_signals = webview()->PageImportanceSignals();
 
   PageImportanceSignals signals;
   signals.had_form_interaction = web_signals->HadFormInteraction();
 
   main_render_frame_->Send(new FrameHostMsg_UpdatePageImportanceSignals(
@@ skipping 275 matching lines @@
                         input_event.GetCoalescedEventsPointers(), latency_info,
                         dispatch_type);
     return INPUT_EVENT_ACK_STATE_NOT_CONSUMED;
   }
   idle_user_detector_->ActivityDetected();
   return RenderWidget::HandleInputEvent(input_event, latency_info,
                                         dispatch_type);
 }
 
 }  // namespace content