Use shared D3D9 texture to transport the compositor's backing buffer to the browser...

ui/gfx/gl/gl_surface_glx.h

Index: ui/gfx/gl/gl_surface_glx.h
===================================================================
--- ui/gfx/gl/gl_surface_glx.h	(revision 106500)
+++ ui/gfx/gl/gl_surface_glx.h	(working copy)
@@ -21,7 +21,6 @@
   virtual ~GLSurfaceGLX();
 
   static bool InitializeOneOff();
-  static Display* GetDisplay();
 
   // These aren't particularly tied to surfaces, but since we already
   // have the static InitializeOneOff here, it's easiest to reuse its
@@ -30,6 +29,8 @@
   static bool HasGLXExtension(const char* name);
   static bool IsCreateContextRobustnessSupported();
 
+  virtual void* GetDisplay();
+
   // Get the FB config that the surface was created with or NULL if it is not
   // a GLX drawable.
   virtual void* GetConfig() = 0;