Handle resize corner layout entirely in the platform BrowserWindow*/BrowserView* code...

chrome/browser/renderer_host/render_widget_host_view_win.h

Index: chrome/browser/renderer_host/render_widget_host_view_win.h
===================================================================
--- chrome/browser/renderer_host/render_widget_host_view_win.h	(revision 64775)
+++ chrome/browser/renderer_host/render_widget_host_view_win.h	(working copy)
@@ -250,10 +250,6 @@
   // asynchronously.
   void Redraw();
 
-  // Draw the resize corner bitmap on top of the given HDC, if it intersects the
-  // given paint rect.
-  void DrawResizeCorner(const gfx::Rect& paint_rect, HDC dc);
-
   // Draw our background over the given HDC in the given |rect|. The background
   // will be tiled such that it lines up with existing tiles starting from the
   // origin of |dc|.