[Sync] Fix namespaces for the browser_sync component.

chrome/browser/app_controller_mac_unittest.mm

 // Copyright (c) 2011 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.
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/files/file_path.h"
 #include "base/mac/scoped_nsobject.h"
 #include "base/run_loop.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 106 matching lines @@
                    currentProfile:profile_];
   EXPECT_TRUE([[syncMenuItem title] isEqualTo:startSignin]);
   EXPECT_TRUE([syncMenuItem isHidden]);
 
   // Now sign in.
   std::string username = "foo@example.com";
   NSString* alreadySignedIn = l10n_util::GetNSStringFWithFixup(
       IDS_SYNC_MENU_SYNCED_LABEL, base::UTF8ToUTF16(username));
   SigninManager* signin = SigninManagerFactory::GetForProfile(profile_);
   signin->SetAuthenticatedAccountInfo(username, username);
-  ProfileSyncService* sync = ProfileSyncServiceFactory::GetForProfile(profile_);
+  browser_sync::ProfileSyncService* sync =
+      ProfileSyncServiceFactory::GetForProfile(profile_);
   sync->SetFirstSetupComplete();
   [AppController updateSigninItem:syncMenuItem
                        shouldShow:YES
                    currentProfile:profile_];
   EXPECT_TRUE([[syncMenuItem title] isEqualTo:alreadySignedIn]);
   EXPECT_FALSE([syncMenuItem isHidden]);
 }
 
 TEST_F(AppControllerTest, TestSigninMenuItemAuthError) {
   base::scoped_nsobject<NSMenuItem> syncMenuItem(
       [[NSMenuItem alloc] initWithTitle:@""
                                  action:@selector(commandDispatch)
                           keyEquivalent:@""]);
   [syncMenuItem setTag:IDC_SHOW_SYNC_SETUP];
 
   // Now sign in.
   std::string username = "foo@example.com";
   SigninManager* signin = SigninManagerFactory::GetForProfile(profile_);
   signin->SetAuthenticatedAccountInfo(username, username);
-  ProfileSyncService* sync = ProfileSyncServiceFactory::GetForProfile(profile_);
+  browser_sync::ProfileSyncService* sync =
+      ProfileSyncServiceFactory::GetForProfile(profile_);
   sync->SetFirstSetupComplete();
   // Force an auth error.
   FakeAuthStatusProvider provider(
       SigninErrorControllerFactory::GetForProfile(profile_));
   GoogleServiceAuthError error(
       GoogleServiceAuthError::INVALID_GAIA_CREDENTIALS);
   provider.SetAuthError("user@gmail.com", error);
   [AppController updateSigninItem:syncMenuItem
                        shouldShow:YES
                    currentProfile:profile_];
@@ skipping 58 matching lines @@
 
   [followingNonSeparator setHidden:YES];
   [AppController updateSigninItem:signinMenuItem
                        shouldShow:YES
                    currentProfile:profile_];
 
   EXPECT_TRUE([followingNonSeparator isEnabled]);
   EXPECT_FALSE([signinMenuItem isHidden]);
   EXPECT_TRUE([followingNonSeparator isHidden]);
 }