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

ui/gl/egl_api_unittest.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 <memory>
 
 #include "base/command_line.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/gl/gl_egl_api_implementation.h"
 #include "ui/gl/gl_switches.h"
 
-namespace gfx {
+namespace gl {
 
 class EGLApiTest : public testing::Test {
  public:
   void SetUp() override {
     fake_client_extension_string_ = "";
     fake_extension_string_ = "";
 
     // TODO(dyen): Add a way to bind mock drivers for testing.
     g_driver_egl.ClearBindings();
     g_driver_egl.fn.eglInitializeFn = &FakeInitialize;
@@ skipping 108 matching lines @@
 
   base::CommandLine command_line(base::CommandLine::NO_PROGRAM);
   command_line.AppendSwitchASCII(switches::kDisableGLExtensions,
                                  kFakeDisabledExtensions);
   InitializeAPI(&command_line);
 
   EXPECT_STREQ(kFilteredClientExtensions, GetExtensions().first);
   EXPECT_STREQ(kFilteredExtensions, GetExtensions().second);
 }
 
-}  // namespace gfx
+}  // namespace gl