[components] Switch {RefCounted}ProfileKeyedService to use BrowserContext

chrome/browser/policy/cloud/user_policy_signin_service_unittest.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/command_line.h"
 #include "base/memory/ref_counted.h"
 #include "base/message_loop.h"
 #include "base/prefs/pref_service.h"
 #include "base/run_loop.h"
 #include "chrome/browser/policy/browser_policy_connector.h"
@@ skipping 55 matching lines @@
   explicit SigninManagerFake(Profile* profile)
       : FakeSigninManager(profile) {
   }
 
   void ForceSignOut() {
     // Allow signing out now.
     prohibit_signout_ = false;
     SignOut();
   }
 
-  static ProfileKeyedService* Build(Profile* profile) {
-    return new SigninManagerFake(profile);
+  static ProfileKeyedService* Build(content::BrowserContext* profile) {
+    return new SigninManagerFake(static_cast<Profile*>(profile));
   }
 };
 }  // namespace
 
 class UserPolicySigninServiceTest : public testing::Test {
  public:
   UserPolicySigninServiceTest()
       : loop_(MessageLoop::TYPE_IO),
         ui_thread_(content::BrowserThread::UI, &loop_),
         file_thread_(content::BrowserThread::FILE, &loop_),
@@ skipping 613 matching lines @@
   fetch_request->SendResponse(DM_STATUS_SERVICE_MANAGEMENT_NOT_SUPPORTED,
                               em::DeviceManagementResponse());
   base::RunLoop().RunUntilIdle();
   EXPECT_FALSE(manager_->IsClientRegistered());
   EXPECT_FALSE(signin_manager_->IsSignoutProhibited());
 }
 
 }  // namespace
 
 }  // namespace policy