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

content/browser/web_contents/web_contents_view_mus.cc

 // Copyright 2015 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_mus.h"
 
 #include "build/build_config.h"
 #include "content/browser/frame_host/interstitial_page_impl.h"
 #include "content/browser/renderer_host/render_widget_host_view_mus.h"
 #include "content/browser/web_contents/web_contents_impl.h"
@@ skipping 44 matching lines @@
 gfx::NativeView WebContentsViewMus::GetContentNativeView() const {
   RenderWidgetHostView* rwhv = web_contents_->GetRenderWidgetHostView();
   return rwhv ? rwhv->GetNativeView() : nullptr;
 }
 
 gfx::NativeWindow WebContentsViewMus::GetTopLevelNativeWindow() const {
   gfx::NativeWindow window = aura_window_->GetToplevelWindow();
   return window ? window : delegate_->GetNativeWindow();
 }
 
+void WebContentsViewMus::GetScreenInfo(
+    blink::WebScreenInfo* web_screen_info) const {
+  // TODO(wjmaclean) Figure out what goes here.
+}
+
 void WebContentsViewMus::GetContainerBounds(gfx::Rect* out) const {
   *out = aura_window_->GetBoundsInScreen();
 }
 
 void WebContentsViewMus::SizeContents(const gfx::Size& size) {
   gfx::Rect bounds = aura_window_->bounds();
   if (bounds.size() != size) {
     bounds.set_size(size);
     aura_window_->SetBounds(bounds);
     SizeChangedCommon(size);
@@ skipping 181 matching lines @@
 
 void WebContentsViewMus::OnWindowTargetVisibilityChanged(bool visible) {}
 
 bool WebContentsViewMus::HasHitTestMask() const {
   return false;
 }
 
 void WebContentsViewMus::GetHitTestMask(gfx::Path* mask) const {}
 
 }  // namespace content