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

ui/gl/gl_fence_nv.cc

 // Copyright 2014 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_fence_nv.h"
 
 #include "ui/gl/gl_bindings.h"
 
-namespace gfx {
+namespace gl {
 
 GLFenceNV::GLFenceNV() {
   // What if either of these GL calls fails? TestFenceNV will return true.
   // See spec:
   // http://www.opengl.org/registry/specs/NV/fence.txt
   //
   // What should happen if TestFenceNV is called for a name before SetFenceNV
   // is called?
   //     We generate an INVALID_OPERATION error, and return TRUE.
   //     This follows the semantics for texture object names before
@@ skipping 26 matching lines @@
 void GLFenceNV::ServerWait() {
   DCHECK(glIsFenceNV(fence_));
   ClientWait();
 }
 
 GLFenceNV::~GLFenceNV() {
   DCHECK(glIsFenceNV(fence_));
   glDeleteFencesNV(1, &fence_);
 }
 
-}  // namespace gfx
+}  // namespace gl