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

content/browser/web_contents/web_contents_view_aura.h

 // 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.
 
 #ifndef CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_VIEW_AURA_H_
 #define CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_VIEW_AURA_H_
 
 #include <memory>
 #include <vector>
 
@@ skipping 73 matching lines @@
   ui::TouchSelectionController* GetSelectionController() const;
   TouchSelectionControllerClientAura* GetSelectionControllerClient() const;
 
   // Returns GetNativeView unless overridden for testing.
   gfx::NativeView GetRenderWidgetHostViewParent() const;
 
   // Overridden from WebContentsView:
   gfx::NativeView GetNativeView() const override;
   gfx::NativeView GetContentNativeView() const override;
   gfx::NativeWindow GetTopLevelNativeWindow() const override;
+  void GetScreenInfo(blink::WebScreenInfo* web_screen_info) const override;
   void GetContainerBounds(gfx::Rect* out) const override;
   void SizeContents(const gfx::Size& size) override;
   void Focus() override;
   void SetInitialFocus() override;
   void StoreFocus() override;
   void RestoreFocus() override;
   DropData* GetDropData() const override;
   gfx::Rect GetViewBounds() const override;
   void CreateView(const gfx::Size& initial_size,
                   gfx::NativeView context) override;
@@ skipping 108 matching lines @@
   std::unique_ptr<GestureNavSimple> gesture_nav_simple_;
 
   bool init_rwhv_with_null_parent_for_testing_;
 
   DISALLOW_COPY_AND_ASSIGN(WebContentsViewAura);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_VIEW_AURA_H_