Call scoped_refptr<T>::get() rather than relying on implicit "operator T*"

chrome/browser/devtools/devtools_sanity_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 "base/bind.h"
 #include "base/cancelable_callback.h"
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
 #include "base/path_service.h"
@@ skipping 604 matching lines @@
   CloseDevToolsWindow();
 }
 
 class DevToolsAgentHostTest : public InProcessBrowserTest {};
 
 // Tests DevToolsAgentHost retention by its target.
 IN_PROC_BROWSER_TEST_F(DevToolsAgentHostTest, TestAgentHostReleased) {
   ui_test_utils::NavigateToURL(browser(), GURL("about:blank"));
   RenderViewHost* rvh = browser()->tab_strip_model()->GetWebContentsAt(0)->
       GetRenderViewHost();
-  DevToolsAgentHost* agent_raw = DevToolsAgentHost::GetOrCreateFor(rvh);
+  DevToolsAgentHost* agent_raw = DevToolsAgentHost::GetOrCreateFor(rvh).get();
   const std::string agent_id = agent_raw->GetId();
   ASSERT_EQ(agent_raw, DevToolsAgentHost::GetForId(agent_id)) <<
       "DevToolsAgentHost cannot be found by id";
   browser()->tab_strip_model()->
       CloseWebContentsAt(0, TabStripModel::CLOSE_NONE);
-  ASSERT_FALSE(DevToolsAgentHost::GetForId(agent_id)) <<
-      "DevToolsAgentHost is not released when the tab is closed";
+  ASSERT_FALSE(DevToolsAgentHost::GetForId(agent_id).get())
+      << "DevToolsAgentHost is not released when the tab is closed";
 }
 
 class RemoteDebuggingTest: public ExtensionApiTest {
   virtual void SetUpCommandLine(CommandLine* command_line) OVERRIDE {
     ExtensionApiTest::SetUpCommandLine(command_line);
     command_line->AppendSwitchASCII(switches::kRemoteDebuggingPort, "9222");
 
     // Override the extension root path.
     PathService::Get(chrome::DIR_TEST_DATA, &test_data_dir_);
     test_data_dir_ = test_data_dir_.AppendASCII("devtools");
   }
 };
 
 IN_PROC_BROWSER_TEST_F(RemoteDebuggingTest, RemoteDebugger) {
   ASSERT_TRUE(RunExtensionTest("target_list")) << message_;
 }
 
 }  // namespace