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

android_webview/browser/scoped_app_gl_state_restore.h

 // Copyright 2013 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 <memory>
 #include <vector>
 
 #include "base/macros.h"
 
-namespace gfx {
+namespace gl {
 class GLContext;
 }
 
 namespace android_webview {
 
 namespace internal {
 class ScopedAppGLStateRestoreImpl;
 }
 
 struct StencilState {
@@ skipping 29 matching lines @@
   StencilState stencil_state() const;
   int framebuffer_binding_ext() const;
 
  private:
   std::unique_ptr<internal::ScopedAppGLStateRestoreImpl> impl_;
 
   DISALLOW_COPY_AND_ASSIGN(ScopedAppGLStateRestore);
 };
 
 }  // namespace android_webview