Removes RenderViewHostDelegate::GetBrowserWindowID. Instead the places

content/browser/renderer_host/render_view_host_delegate.h

Index: content/browser/renderer_host/render_view_host_delegate.h
diff --git a/content/browser/renderer_host/render_view_host_delegate.h b/content/browser/renderer_host/render_view_host_delegate.h
index 3bbfb48461194210748202c63228629127bad4e1..4f939332493478cea2c8f04e9e2dc366efa43e57 100644
--- a/content/browser/renderer_host/render_view_host_delegate.h
+++ b/content/browser/renderer_host/render_view_host_delegate.h
@@ -274,10 +274,6 @@ class RenderViewHostDelegate : public IPC::Channel::Listener {
   // object is not a BackgroundContents, returns NULL.
   virtual BackgroundContents* GetAsBackgroundContents();
 
-  // Return id number of browser window which this object is attached to. If no
-  // browser window is attached to, just return -1.
-  virtual int GetBrowserWindowID() const = 0;
-
   // Return type of RenderView which is attached with this object.
   virtual ViewType::Type GetRenderViewType() const = 0;