Cleanup: Remove an unused parameter in StartupBrowserCreator.

chrome/browser/chromeos/login/session/user_session_manager.cc

 // Copyright 2014 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/browser/chromeos/login/session/user_session_manager.h"
 
 #include <string>
 
 #include "base/base_paths.h"
 #include "base/bind.h"
@@ skipping 1464 matching lines @@
     login_host->BeforeSessionStart();
   }
 
   BootTimesRecorder::Get()->AddLoginTimeMarker("BrowserLaunched", false);
 
   VLOG(1) << "Launching browser...";
   TRACE_EVENT0("login", "LaunchBrowser");
 
   if (should_launch_browser_) {
     StartupBrowserCreator browser_creator;
-    int return_code;
     chrome::startup::IsFirstRun first_run =
         ::first_run::IsChromeFirstRun() ? chrome::startup::IS_FIRST_RUN
                                         : chrome::startup::IS_NOT_FIRST_RUN;
 
     browser_creator.LaunchBrowser(
         *base::CommandLine::ForCurrentProcess(), profile, base::FilePath(),
-        chrome::startup::IS_PROCESS_STARTUP, first_run, &return_code);
+        chrome::startup::IS_PROCESS_STARTUP, first_run);
 
     // Triggers app launcher start page service to load start page web contents.
     app_list::StartPageService::Get(profile);
   } else {
     LOG(WARNING) << "Browser hasn't been launched, should_launch_browser_"
                  << " is false. This is normal in some tests.";
   }
 
   // Mark login host for deletion after browser starts.  This
   // guarantees that the message loop will be referenced by the
@@ skipping 34 matching lines @@
   default_ime_states_.erase(profile);
 }
 
 void UserSessionManager::InjectStubUserContext(
     const UserContext& user_context) {
   injected_user_context_.reset(new UserContext(user_context));
   authenticator_ = NULL;
 }
 
 }  // namespace chromeos