Shadows: crop corner tiles instead of hiding.

ui/compositor/layer.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_COMPOSITOR_LAYER_H_
 #define UI_COMPOSITOR_LAYER_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 269 matching lines @@
   bool has_external_content() {
     return texture_layer_.get() || delegated_renderer_layer_.get() ||
            surface_layer_.get();
   }
 
   void SetShowPaintedContent();
 
   // Sets the layer's fill color.  May only be called for LAYER_SOLID_COLOR.
   void SetColor(SkColor color);
 
-  // Updates the nine patch layer's bitmap and aperture. May only be called for
-  // LAYER_NINE_PATCH.
-  void UpdateNinePatchLayerBitmap(const SkBitmap& bitmap,
-                                  const gfx::Rect& aperture);
-
-  // Updates the nine patch layer's border. May only be called for
-  // LAYER_NINE_PATCH.
+  // Updates the nine patch layer's bitmap, aperture and border. May only be
+  // called for LAYER_NINE_PATCH.
+  void UpdateNinePatchLayerBitmap(const SkBitmap& bitmap);
+  void UpdateNinePatchLayerAperture(const gfx::Rect& aperture);
   void UpdateNinePatchLayerBorder(const gfx::Rect& border);
 
   // Adds |invalid_rect| to the Layer's pending invalid rect and calls
   // ScheduleDraw(). Returns false if the paint request is ignored.
   bool SchedulePaint(const gfx::Rect& invalid_rect);
 
   // Schedules a redraw of the layer tree at the compositor.
   // Note that this _does not_ invalidate any region of this layer; use
   // SchedulePaint() for that.
   void ScheduleDraw();
@@ skipping 205 matching lines @@
   // The size of the frame or texture in DIP, set when SetShowDelegatedContent
   // or SetTextureMailbox was called.
   gfx::Size frame_size_in_dip_;
 
   DISALLOW_COPY_AND_ASSIGN(Layer);
 };
 
 }  // namespace ui
 
 #endif  // UI_COMPOSITOR_LAYER_H_