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

ui/gl/gl_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 "base/command_line.h"
 #include "base/memory/scoped_ptr.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/gl/gl_gl_api_implementation.h"
 #include "ui/gl/gl_implementation.h"
 #include "ui/gl/gl_switches.h"
@@ skipping 94 matching lines @@
   static const char* kFakeExtensions = "GL_EXT_1 GL_EXT_2 GL_EXT_3 GL_EXT_4";
   static const char* kFakeDisabledExtensions = "GL_EXT_1,GL_EXT_2,GL_FAKE";
   static const char* kFilteredExtensions = "GL_EXT_3 GL_EXT_4";
 
   SetFakeExtensionString(kFakeExtensions);
   InitializeAPI(nullptr);
 
   EXPECT_STREQ(kFakeExtensions, GetExtensions());
 
   base::CommandLine command_line(base::CommandLine::NO_PROGRAM);
-  command_line.AppendSwitchASCII(switches::kDisableGLExtensions,
+  command_line.AppendSwitchASCII(switches::kDisableExtensions,
                                  kFakeDisabledExtensions);
   InitializeAPI(&command_line);
 
   EXPECT_STREQ(kFilteredExtensions, GetExtensions());
 }
 
 TEST_F(GLApiTest, DisabledExtensionStringIndexTest) {
   static const char* kFakeExtensions[] = {
     "GL_EXT_1",
     "GL_EXT_2",
     "GL_EXT_3",
     "GL_EXT_4"
   };
   static const char* kFakeDisabledExtensions = "GL_EXT_1,GL_EXT_2,GL_FAKE";
   static const char* kFilteredExtensions[] = {
     "GL_EXT_3",
     "GL_EXT_4"
   };
 
   SetFakeExtensionStrings(kFakeExtensions, arraysize(kFakeExtensions));
   InitializeAPI(nullptr);
 
   EXPECT_EQ(arraysize(kFakeExtensions), GetNumExtensions());
   for (uint32_t i = 0; i < arraysize(kFakeExtensions); ++i) {
     EXPECT_STREQ(kFakeExtensions[i], GetExtensioni(i));
   }
 
   base::CommandLine command_line(base::CommandLine::NO_PROGRAM);
-  command_line.AppendSwitchASCII(switches::kDisableGLExtensions,
+  command_line.AppendSwitchASCII(switches::kDisableExtensions,
                                  kFakeDisabledExtensions);
   InitializeAPI(&command_line);
 
   EXPECT_EQ(arraysize(kFilteredExtensions), GetNumExtensions());
   for (uint32_t i = 0; i < arraysize(kFilteredExtensions); ++i) {
     EXPECT_STREQ(kFilteredExtensions[i], GetExtensioni(i));
   }
 }
 
 }  // namespace gpu