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

ui/gl/gl_context_nsview.mm

 // 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/gfx/gl/gl_context_nsview.h"
+#include "ui/gl/gl_context_nsview.h"
 
 #include <vector>
 
 #import <AppKit/NSOpenGL.h>
 #import <AppKit/NSView.h>
 
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
-#include "ui/gfx/gl/gl_surface_nsview.h"
+#include "ui/gl/gl_surface_nsview.h"
 
 namespace gfx {
 
 GLContextNSView::GLContextNSView(GLShareGroup* group)
     : GLContext(group) {
 }
 
 GLContextNSView::~GLContextNSView() {
 }
 
@@ skipping 65 matching lines @@
   DCHECK(interval == 0 || interval == 1);
   GLint swap = interval;
   [context_ setValues:&swap forParameter:NSOpenGLCPSwapInterval];
 }
 
 void GLContextNSView::FlushBuffer() {
   [context_ flushBuffer];
 }
 
 }  // namespace gfx