Notification for device scale factor change

ui/views/view.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 UI_VIEWS_VIEW_H_
 #define UI_VIEWS_VIEW_H_
 #pragma once
 
 #include <algorithm>
 #include <map>
@@ skipping 933 matching lines @@
 
   // Painting ------------------------------------------------------------------
 
   // Responsible for calling Paint() on child Views. Override to control the
   // order child Views are painted.
   virtual void PaintChildren(gfx::Canvas* canvas);
 
   // Override to provide rendering in any part of the View's bounds. Typically
   // this is the "contents" of the view. If you override this method you will
   // have to call the subsequent OnPaint*() methods manually.
-  virtual void OnPaint(gfx::Canvas* canvas);
+  virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE;

[sky, 2012/05/16 21:16:01]

Is OVERRIDE right here?

[oshima, 2012/05/16 21:50:29]

oops, sorry. I thought this was OnPaintLayer once and forgot to remove it.
Removed.

 
   // Override to paint a background before any content is drawn. Typically this
   // is done if you are satisfied with a default OnPaint handler but wish to
   // supply a different background.
   virtual void OnPaintBackground(gfx::Canvas* canvas);
 
   // Override to paint a border not specified by SetBorder().
   virtual void OnPaintBorder(gfx::Canvas* canvas);
 
   // Override to paint a focus border (usually a dotted rectangle) around
@@ skipping 24 matching lines @@
   // the right layer.
   virtual void MoveLayerToParent(ui::Layer* parent_layer,
                                  const gfx::Point& point);
 
   // Called to update the bounds of any child layers within this View's
   // hierarchy when something happens to the hierarchy.
   virtual void UpdateChildLayerBounds(const gfx::Point& offset);
 
   // Overridden from ui::LayerDelegate:
   virtual void OnPaintLayer(gfx::Canvas* canvas) OVERRIDE;
+  virtual void OnDeviceScaleFactorChanged(float device_scale_factor) OVERRIDE;
 
   // Finds the layer that this view paints to (it may belong to an ancestor
   // view), then reorders the immediate children of that layer to match the
   // order of the view tree.
   virtual void ReorderLayers();
 
   // This reorders the immediate children of |*parent_layer| to match the
   // order of the view tree.
   virtual void ReorderChildLayers(ui::Layer* parent_layer);
 
@@ skipping 450 matching lines @@
   base::win::ScopedComPtr<NativeViewAccessibilityWin>
       native_view_accessibility_win_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(View);
 };
 
 }  // namespace views
 
 #endif  // UI_VIEWS_VIEW_H_