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

content/browser/renderer_host/render_widget_host_view_base.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_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_BASE_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_BASE_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 260 matching lines @@
   // gfx::Rect.
   virtual void SelectionBoundsChanged(
       const ViewHostMsg_SelectionBounds_Params& params);
 
   // Updates the range of the marked text in an IME composition.
   virtual void ImeCompositionRangeChanged(
       const gfx::Range& range,
       const std::vector<gfx::Rect>& character_bounds);
 
   //----------------------------------------------------------------------------
-  // The following static methods are implemented by each platform.
-
-  static void GetDefaultScreenInfo(blink::WebScreenInfo* results);
-
-  //----------------------------------------------------------------------------
   // The following pure virtual methods are implemented by derived classes.
 
   // Perform all the initialization steps necessary for this object to represent
   // a popup (such as a <select> dropdown), then shows the popup at |pos|.
   virtual void InitAsPopup(RenderWidgetHostView* parent_host_view,
                            const gfx::Rect& bounds) = 0;
 
   // Perform all the initialization steps necessary for this object to represent
   // a full screen window.
   // |reference_host_view| is the view associated with the creating page that
@@ skipping 60 matching lines @@
   virtual bool HasAcceleratedSurface(const gfx::Size& desired_size) = 0;
 
   // Compute the orientation type of the display assuming it is a mobile device.
   static blink::WebScreenOrientationType GetOrientationTypeForMobile(
       const display::Display& display);
 
   // Compute the orientation type of the display assuming it is a desktop.
   static blink::WebScreenOrientationType GetOrientationTypeForDesktop(
       const display::Display& display);
 
-  virtual void GetScreenInfo(blink::WebScreenInfo* results) = 0;
-
   // Gets the bounds of the window, in screen coordinates.
   virtual gfx::Rect GetBoundsInRootWindow() = 0;
 
   // Called by the RenderWidgetHost when an ambiguous gesture is detected to
   // show the disambiguation popup bubble.
   virtual void ShowDisambiguationPopup(const gfx::Rect& rect_pixels,
                                        const SkBitmap& zoomed_bitmap);
 
   // Called by the WebContentsImpl when a user tries to navigate a new page on
   // main frame.
@@ skipping 92 matching lines @@
   base::ObserverList<RenderWidgetHostViewBaseObserver> observers_;
 
   base::WeakPtrFactory<RenderWidgetHostViewBase> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetHostViewBase);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_WIDGET_HOST_VIEW_BASE_H_