Eliminate BrowserProcess dependency from sign-in production code.

chrome/browser/signin/signin_tracker_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 "chrome/browser/signin/signin_tracker.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/compiler_specific.h"
 #include "chrome/browser/profiles/profile.h"
@@ skipping 55 matching lines @@
             profile_.get(), BuildMockTokenService));
     mock_pss_ = static_cast<ProfileSyncServiceMock*>(
         ProfileSyncServiceFactory::GetInstance()->SetTestingFactoryAndUse(
             profile_.get(),
             ProfileSyncServiceMock::BuildMockProfileSyncService));
     mock_pss_->Initialize();
 
     mock_signin_manager_ = static_cast<FakeSigninManagerBase*>(
         SigninManagerFactory::GetInstance()->SetTestingFactoryAndUse(
             profile_.get(), FakeSigninManagerBase::Build));
-    mock_signin_manager_->Initialize(profile_.get());
+    mock_signin_manager_->Initialize(profile_.get(), NULL);
     // Make gmock not spam the output with information about these uninteresting
     // calls.
     EXPECT_CALL(*mock_pss_, AddObserver(_)).Times(AnyNumber());
     EXPECT_CALL(*mock_pss_, RemoveObserver(_)).Times(AnyNumber());
     tracker_.reset(new SigninTracker(profile_.get(), &observer_));
   }
   virtual void TearDown() OVERRIDE {
     tracker_.reset();
     profile_.reset();
   }
@@ skipping 275 matching lines @@
 
 TEST_F(SigninTrackerTest, SigninFailedWhenInitializing) {
   tracker_.reset();
   // SigninFailed() should be called.
   GoogleServiceAuthError error(GoogleServiceAuthError::REQUEST_CANCELED);
   EXPECT_CALL(observer_, SigninFailed(error));
   tracker_.reset(new SigninTracker(profile_.get(), &observer_,
                                    SigninTracker::SERVICES_INITIALIZING));
   tracker_->OnStateChanged();
 }