Revert 216278 "Clean up compositor initialization/destruction."

trunk/src/chrome/browser/extensions/requirements_checker_browsertest.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 <vector>
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/files/file_path.h"
 #include "base/memory/ref_counted.h"
 #include "base/message_loop/message_loop.h"
 #include "base/path_service.h"
 #include "base/strings/string_util.h"
 #include "base/threading/sequenced_worker_pool.h"
 #include "chrome/browser/extensions/extension_browsertest.h"
 #include "chrome/browser/extensions/requirements_checker.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/extensions/extension.h"
 #include "chrome/common/extensions/extension_file_util.h"
+#include "chrome/test/base/test_launcher_utils.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/gpu_data_manager.h"
 #include "gpu/config/gpu_info.h"
 #include "grit/generated_resources.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/gl/gl_switches.h"
 
 namespace extensions {
 
 class RequirementsCheckerBrowserTest : public ExtensionBrowserTest {
  public:
+  virtual void SetUpCommandLine(CommandLine* command_line) OVERRIDE {
+    // We need to launch GPU process to decide if WebGL is allowed.
+    // Run it on top of osmesa to avoid bot driver issues.
+#if !defined(OS_MACOSX)
+    CHECK(test_launcher_utils::OverrideGLImplementation(
+        command_line, gfx::kGLImplementationOSMesaName)) <<
+        "kUseGL must not be set multiple times!";
+#endif
+  }
+
   scoped_refptr<const Extension> LoadExtensionFromDirName(
       const std::string& extension_dir_name) {
     base::FilePath extension_path;
     std::string load_error;
     PathService::Get(chrome::DIR_TEST_DATA, &extension_path);
     extension_path = extension_path.AppendASCII("requirements_checker")
                                    .AppendASCII(extension_dir_name);
     scoped_refptr<const Extension> extension =
         extension_file_util::LoadExtension(extension_path, Manifest::UNPACKED,
                                            0, &load_error);
@@ skipping 131 matching lines @@
   scoped_refptr<const Extension> extension(
       LoadExtensionFromDirName("require_3d"));
   ASSERT_TRUE(extension.get());
 
   checker_.Check(extension, base::Bind(
       &RequirementsCheckerBrowserTest::ValidateRequirementErrors,
       base::Unretained(this), std::vector<std::string>()));
   content::BrowserThread::GetBlockingPool()->FlushForTesting();
 }
 
-}  // namespace extensions
+}  // extensions