Cross-process frames should be notified of device scale factor changes.

content/browser/frame_host/render_widget_host_view_child_frame.cc

 // Copyright 2014 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/frame_host/render_widget_host_view_child_frame.h"
 
 #include <algorithm>
 #include <utility>
 #include <vector>
 
@@ skipping 413 matching lines @@
 
 void RenderWidgetHostViewChildFrame::ProcessFrameSwappedCallbacks() {
   // We only use callbacks once, therefore we make a new list for registration
   // before we start, and discard the old list entries when we are done.
   FrameSwappedCallbackList process_callbacks;
   process_callbacks.swap(frame_swapped_callbacks_);
   for (std::unique_ptr<base::Closure>& callback : process_callbacks)
     callback->Run();
 }
 
-void RenderWidgetHostViewChildFrame::GetScreenInfo(
-    blink::WebScreenInfo* results) {
-  if (!frame_connector_)
-    return;
-  frame_connector_->GetScreenInfo(results);
-}
-
 gfx::Rect RenderWidgetHostViewChildFrame::GetBoundsInRootWindow() {
   gfx::Rect rect;
   if (frame_connector_) {
     RenderWidgetHostViewBase* root_view =
         frame_connector_->GetRootRenderWidgetHostView();
 
     // The root_view can be null in tests when using a TestWebContents.
     if (root_view)
       rect = root_view->GetBoundsInRootWindow();
   }
@@ skipping 275 matching lines @@
 
 bool RenderWidgetHostViewChildFrame::IsChildFrameForTesting() const {
   return true;
 }
 
 cc::SurfaceId RenderWidgetHostViewChildFrame::SurfaceIdForTesting() const {
   return surface_id_;
 };
 
 }  // namespace content