ui: Move gl/ directory out of gfx/, up to ui/.

ui/gl/gpu_preference.h

Index: ui/gl/gpu_preference.h
diff --git a/ui/gfx/gl/gpu_preference.h b/ui/gl/gpu_preference.h
similarity index 77%
rename from ui/gfx/gl/gpu_preference.h
rename to ui/gl/gpu_preference.h
index 189ed3d57567198be492e7f020e4ca09452a6fc6..54f814a3f10bdf6d978b0449a0a5676a339c6913 100644
--- a/ui/gfx/gl/gpu_preference.h
+++ b/ui/gl/gpu_preference.h
@@ -1,9 +1,9 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// 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.
 
-#ifndef UI_GFX_GL_GPU_PREFERENCE_H_
-#define UI_GFX_GL_GPU_PREFERENCE_H_
+#ifndef UI_GL_GPU_PREFERENCE_H_
+#define UI_GL_GPU_PREFERENCE_H_
 #pragma once
 
 namespace gfx {
@@ -22,4 +22,4 @@ enum GpuPreference {
 
 }  // namespace gfx
 
-#endif  // UI_GFX_GL_GPU_PREFERENCE_H_
+#endif  // UI_GL_GPU_PREFERENCE_H_