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

content/browser/web_contents/web_contents_view_android.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_ANDROID_H_
 #define CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_VIEW_ANDROID_H_
 
 #include <memory>
 
 #include "base/macros.h"
@@ skipping 18 matching lines @@
 
   // Sets the interface to the view system. ContentViewCoreImpl is owned
   // by its Java ContentViewCore counterpart, whose lifetime is managed
   // by the UI frontend.
   void SetContentViewCore(ContentViewCoreImpl* content_view_core);
 
   // WebContentsView implementation --------------------------------------------
   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 48 matching lines @@
 
   // Interface for extensions to WebContentsView. Used to show the context menu.
   std::unique_ptr<WebContentsViewDelegate> delegate_;
 
   DISALLOW_COPY_AND_ASSIGN(WebContentsViewAndroid);
 };
 
 } // namespace content
 
 #endif  // CONTENT_BROWSER_WEB_CONTENTS_WEB_CONTENTS_VIEW_ANDROID_H_