Update chrome/ to use scoped_refptr<T>::get() rather than implicit "operator T*"

chrome/test/perf/perf_ui_test_suite.cc

 // Copyright (c) 2013 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 "chrome/test/perf/perf_ui_test_suite.h"
 
 #include "base/file_util.h"
 #include "base/json/json_file_value_serializer.h"
 #include "base/lazy_instance.h"
 #include "base/logging.h"
@@ skipping 135 matching lines @@
       serializer.Deserialize(&error_code, &error)));
   if (error_code != 0 || !valid_value)
     LOG(FATAL) << "Error parsing theme manifest: " << error;
 
   scoped_refptr<Extension> extension =
       Extension::Create(extension_base,
                         extensions::Manifest::INVALID_LOCATION,
                         *valid_value,
                         Extension::NO_FLAGS,
                         &error);
-  if (!extension)
+  if (!extension.get())
     LOG(FATAL) << "Error loading theme extension: " << error;
 
   // Build the "Cached Theme.pak" file in the template. (It's not committed
   // both because committing large binary files is bad in a git world and
   // because people don't remember to update it anyway, meaning we usually
   // have the theme rebuild penalty in our data.)
   base::MessageLoopForUI message_loop_;
   content::TestBrowserThread ui_thread_(BrowserThread::UI, &message_loop_);
   content::TestBrowserThread file_thread_(BrowserThread::FILE,
                                           &message_loop_);
 
   scoped_refptr<BrowserThemePack> theme(
-      BrowserThemePack::BuildFromExtension(extension));
-  if (!theme)
+      BrowserThemePack::BuildFromExtension(extension.get()));
+  if (!theme.get())
     LOG(FATAL) << "Failed to load theme from extension";
 
   theme->WriteToDisk(extension_base.AppendASCII("Cached Theme.pak"));
 }