Move code in ui/gl/* from gfx:: to gl::

ui/gl/gl_surface_stub.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/gl/gl_surface_stub.h"
 
-namespace gfx {
+namespace gl {
 
 void GLSurfaceStub::Destroy() {
 }
 
 bool GLSurfaceStub::Resize(const gfx::Size& size,
                            float scale_factor,
                            bool has_alpha) {
   return true;
 }
 
@@ skipping 12 matching lines @@
 void* GLSurfaceStub::GetHandle() {
   return NULL;
 }
 
 bool GLSurfaceStub::BuffersFlipped() const {
   return buffers_flipped_;
 }
 
 GLSurfaceStub::~GLSurfaceStub() {}
 
-}  // namespace gfx
+}  // namespace gl