Notification for device scale factor change

content/browser/web_contents/web_contents_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/web_contents/web_contents_view_aura.h"
 
 #include "base/utf_string_conversions.h"
 #include "content/browser/renderer_host/render_view_host_factory.h"
 #include "content/browser/web_contents/interstitial_page_impl.h"
 #include "content/browser/web_contents/web_contents_impl.h"
@@ skipping 541 matching lines @@
 bool WebContentsViewAura::CanFocus() {
   return true;
 }
 
 void WebContentsViewAura::OnCaptureLost() {
 }
 
 void WebContentsViewAura::OnPaint(gfx::Canvas* canvas) {
 }
 
+void WebContentsViewAura::OnDeviceScaleFactorChanged(
+    float device_scale_factor) {
+}
+
 void WebContentsViewAura::OnWindowDestroying() {
 }
 
 void WebContentsViewAura::OnWindowDestroyed() {
 }
 
 void WebContentsViewAura::OnWindowVisibilityChanged(bool visible) {
   if (visible)
     web_contents_->ShowContents();
   else
@@ skipping 54 matching lines @@
   if (current_rvh_for_drag_ != web_contents_->GetRenderViewHost())
     OnDragEntered(event);
 
   web_contents_->GetRenderViewHost()->DragTargetDrop(
       event.location(),
       GetNativeView()->GetRootWindow()->last_mouse_location());
   if (drag_dest_delegate_)
     drag_dest_delegate_->OnDrop();
   return current_drag_op_;
 }