Linux: server side backing stores

chrome/browser/renderer_host/render_widget_host_view_win.h

Index: chrome/browser/renderer_host/render_widget_host_view_win.h
diff --git a/chrome/browser/renderer_host/render_widget_host_view_win.h b/chrome/browser/renderer_host/render_widget_host_view_win.h
index dad1b5ddc3fab64b1e8e003e8a48b7b70020757c..bb86d2385e8f706e41cd098ef27018c9c5893ce0 100644
--- a/chrome/browser/renderer_host/render_widget_host_view_win.h
+++ b/chrome/browser/renderer_host/render_widget_host_view_win.h
@@ -22,6 +22,8 @@ class Rect;
 namespace IPC {
 class Message;
 }
+
+class BackingStore;
 class RenderWidgetHost;
 class WebMouseEvent;
 
@@ -137,6 +139,7 @@ class RenderWidgetHostViewWin :
   virtual void RenderViewGone();
   virtual void Destroy();
   virtual void SetTooltipText(const std::wstring& tooltip_text);
+  virtual BackingStore* AllocBackingStore(const gfx::Size& size);
 
  protected:
   // Windows Message Handlers