Update other unittests to use newly added TestingBrowserProcess::GetGlobal().

chrome/browser/policy/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/message_loop.h"
 #include "base/run_loop.h"
 #include "chrome/browser/policy/browser_policy_connector.h"
 #include "chrome/browser/policy/mock_device_management_service.h"
 #include "chrome/browser/policy/mock_user_cloud_policy_store.h"
@@ skipping 59 matching lines @@
   virtual void SetUp() OVERRIDE {
     device_management_service_ = new MockDeviceManagementService();
     g_browser_process->browser_policy_connector()->
         SetDeviceManagementServiceForTesting(
             scoped_ptr<DeviceManagementService>(device_management_service_));
 
     g_browser_process->browser_policy_connector()->Init();
 
     local_state_.reset(new TestingPrefServiceSimple);
     chrome::RegisterLocalState(local_state_.get());
-    static_cast<TestingBrowserProcess*>(g_browser_process)->SetLocalState(
+    TestingBrowserProcess::GetGlobal()->SetLocalState(
         local_state_.get());
 
     // Create a testing profile with cloud-policy-on-signin enabled, and bring
     // up a UserCloudPolicyManager with a MockUserCloudPolicyStore.
     scoped_ptr<TestingPrefServiceSyncable> prefs(
         new TestingPrefServiceSyncable());
     Profile::RegisterUserPrefs(prefs.get());
     chrome::RegisterUserPrefs(prefs.get());
     prefs->SetUserPref(prefs::kLoadCloudPolicyOnSignin,
                        Value::CreateBooleanValue(true));
@@ skipping 12 matching lines @@
     // Make sure the UserPolicySigninService is created.
     UserPolicySigninServiceFactory::GetForProfile(profile_.get());
     Mock::VerifyAndClearExpectations(mock_store_);
     url_factory_.set_remove_fetcher_on_delete(true);
   }
 
   virtual void TearDown() OVERRIDE {
     // Free the profile before we clear out the browser prefs.
     profile_.reset();
     TestingBrowserProcess* testing_browser_process =
-        static_cast<TestingBrowserProcess*>(g_browser_process);
+        TestingBrowserProcess::GetGlobal();
     testing_browser_process->SetLocalState(NULL);
     local_state_.reset();
     testing_browser_process->SetBrowserPolicyConnector(NULL);
     base::RunLoop run_loop;
     run_loop.RunUntilIdle();
   }
 
   bool IsRequestActive() {
     return url_factory_.GetFetcherByID(0);
   }
@@ skipping 486 matching lines @@
   SigninManagerFactory::GetForProfile(profile_.get())->SignOut();
   ASSERT_FALSE(manager_->core()->service());
 
   // Now sign in again.
   TestSuccessfulSignin();
 }
 
 }  // namespace
 
 }  // namespace policy