Added disabling EGL extensions support with --disable-extensions.

ui/gl/gl_gl_api_implementation.cc

 // 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/gl/gl_gl_api_implementation.h"
 
 #include <algorithm>
 #include <vector>
 
 #include "base/command_line.h"
@@ skipping 397 matching lines @@
 void RealGLApi::Initialize(DriverGL* driver) {
   InitializeWithCommandLine(driver, base::CommandLine::ForCurrentProcess());
 }
 
 void RealGLApi::InitializeWithCommandLine(DriverGL* driver,
                                           base::CommandLine* command_line) {
   DCHECK(command_line);
   InitializeBase(driver);
 
   const std::string disabled_extensions = command_line->GetSwitchValueASCII(
-      switches::kDisableGLExtensions);
+      switches::kDisableExtensions);
   if (!disabled_extensions.empty()) {
     Tokenize(disabled_extensions, ", ;", &disabled_exts_);
   }
 }
 
 void RealGLApi::InitializeWithContext() {
   InitializeFilteredExtensions();
 }
 
 void RealGLApi::glGetIntegervFn(GLenum pname, GLint* params) {
@@ skipping 180 matching lines @@
 ScopedSetGLToRealGLApi::ScopedSetGLToRealGLApi()
     : old_gl_api_(GetCurrentGLApi()) {
   SetGLToRealGLApi();
 }
 
 ScopedSetGLToRealGLApi::~ScopedSetGLToRealGLApi() {
   SetGLApi(old_gl_api_);
 }
 
 }  // namespace gfx