[Sync] Fix namespaces for the browser_sync component.

chrome/browser/sync/sync_startup_tracker.cc

 // Copyright (c) 2013 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/sync/sync_startup_tracker.h"
 
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/sync/profile_sync_service_factory.h"
 #include "components/browser_sync/profile_sync_service.h"
 
 SyncStartupTracker::SyncStartupTracker(Profile* profile, Observer* observer)
     : profile_(profile),
       observer_(observer) {
-  ProfileSyncService* service = ProfileSyncServiceFactory::GetForProfile(
-      profile_);
+  browser_sync::ProfileSyncService* service =
+      ProfileSyncServiceFactory::GetForProfile(profile_);
   if (service)
     service->AddObserver(this);
 
   CheckServiceState();
 }
 
 SyncStartupTracker::~SyncStartupTracker() {
-  ProfileSyncService* service = ProfileSyncServiceFactory::GetForProfile(
-      profile_);
+  browser_sync::ProfileSyncService* service =
+      ProfileSyncServiceFactory::GetForProfile(profile_);
   if (service)
     service->RemoveObserver(this);
 }
 
 void SyncStartupTracker::OnStateChanged() {
   CheckServiceState();
 }
 
 void SyncStartupTracker::CheckServiceState() {
   // Note: the observer may free this object so it is not allowed to access
@@ skipping 11 matching lines @@
   }
 }
 
 // static
 SyncStartupTracker::SyncServiceState SyncStartupTracker::GetSyncServiceState(
     Profile* profile) {
   // If sync is not allowed, treat this as a startup error.
   if (!profile->IsSyncAllowed())
     return SYNC_STARTUP_ERROR;
 
-  ProfileSyncService* service =
+  browser_sync::ProfileSyncService* service =
       ProfileSyncServiceFactory::GetForProfile(profile);
 
   // If no service exists or it can't be started, treat as a startup error.
   if (!service || !service->CanSyncStart()) {
     return SYNC_STARTUP_ERROR;
   }
 
   // If the sync backend has started up, notify the callback.
   if (service->IsBackendInitialized())
     return SYNC_STARTUP_COMPLETE;
 
   // If the sync service has some kind of error, report to the user.
   if (service->HasUnrecoverableError())
     return SYNC_STARTUP_ERROR;
 
   // If we have an auth error and sync is not still waiting for new auth tokens
   // to be fetched, exit.
   if (!service->waiting_for_auth() &&
       service->GetAuthError().state() != GoogleServiceAuthError::NONE) {
     return SYNC_STARTUP_ERROR;
   }
 
   // No error detected yet, but the sync backend hasn't started up yet, so
   // we're in the pending state.
   return SYNC_STARTUP_PENDING;
 }