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

gpu/command_buffer/service/gles2_cmd_decoder_unittest_buffers.cc

 // Copyright 2015 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 <stdint.h>
 
 #include "gpu/command_buffer/service/gles2_cmd_decoder.h"
 #include "gpu/command_buffer/service/gles2_cmd_decoder_unittest.h"
 
-using ::gfx::MockGLInterface;
+using ::gl::MockGLInterface;
 using ::testing::_;
 using ::testing::Return;
 using ::testing::SetArgPointee;
 
 namespace gpu {
 namespace gles2 {
 
 using namespace cmds;
 
 namespace {
@@ skipping 490 matching lines @@
   {  // UnmapBuffer fails.
     UnmapBuffer cmd;
     cmd.Init(kTarget);
     EXPECT_EQ(error::kNoError, ExecuteCmd(cmd));
     EXPECT_EQ(GL_INVALID_OPERATION, GetGLError());
   }
 }
 
 }  // namespace gles2
 }  // namespace gpu