Make the GPU process use an X11 event loop

ui/gl/gl_surface_glx.h

Index: ui/gl/gl_surface_glx.h
diff --git a/ui/gl/gl_surface_glx.h b/ui/gl/gl_surface_glx.h
index 355b65d1c45e71a2b6ba1450cbaef9cbbad5b1a7..5e77759badae183b6702d734d17f70fc0f9d2ee6 100644
--- a/ui/gl/gl_surface_glx.h
+++ b/ui/gl/gl_surface_glx.h
@@ -17,6 +17,8 @@
 
 namespace gfx {
 
+class NativeViewXExposeEventForwarder;
+
 // Base class for GLX surfaces.
 class GL_EXPORT GLSurfaceGLX : public GLSurface {
  public:
@@ -69,6 +71,8 @@ class GL_EXPORT NativeViewGLSurfaceGLX : public GLSurfaceGLX {
   NativeViewGLSurfaceGLX();
   virtual ~NativeViewGLSurfaceGLX();
 
+  // Window that is passed down from the browser process.
+  gfx::AcceleratedWidget parent_window_;
   gfx::AcceleratedWidget window_;
 
  private:
@@ -76,6 +80,7 @@ class GL_EXPORT NativeViewGLSurfaceGLX : public GLSurfaceGLX {
   gfx::Size size_;
 
   scoped_ptr<VSyncProvider> vsync_provider_;
+  scoped_ptr<NativeViewXExposeEventForwarder> event_forwarder_;
 
   DISALLOW_COPY_AND_ASSIGN(NativeViewGLSurfaceGLX);
 };