[Sync] Fix namespaces for the browser_sync component.

chrome/browser/ui/webui/browsing_history_handler.cc

Index: chrome/browser/ui/webui/browsing_history_handler.cc
diff --git a/chrome/browser/ui/webui/browsing_history_handler.cc b/chrome/browser/ui/webui/browsing_history_handler.cc
index dbc8eccae65de458d204bbf0e76f789f42f31651..391b5eccf274ea50cf14c3334a4e21d36d866d00 100644
--- a/chrome/browser/ui/webui/browsing_history_handler.cc
+++ b/chrome/browser/ui/webui/browsing_history_handler.cc
@@ -136,7 +136,7 @@ bool IsLocalOnlyResult(const BrowsingHistoryHandler::HistoryEntry& entry) {
 
 // Gets the name and type of a device for the given sync client ID.
 // |name| and |type| are out parameters.
-void GetDeviceNameAndType(const ProfileSyncService* sync_service,
+void GetDeviceNameAndType(const browser_sync::ProfileSyncService* sync_service,
                           const std::string& client_id,
                           std::string* name,
                           std::string* type) {
@@ -233,7 +233,7 @@ std::unique_ptr<base::DictionaryValue>
 BrowsingHistoryHandler::HistoryEntry::ToValue(
     BookmarkModel* bookmark_model,
     SupervisedUserService* supervised_user_service,
-    const ProfileSyncService* sync_service,
+    const browser_sync::ProfileSyncService* sync_service,
     bool limit_title_length) const {
   std::unique_ptr<base::DictionaryValue> result(new base::DictionaryValue());
   SetUrlAndTitle(result.get(), limit_title_length);
@@ -372,7 +372,7 @@ void BrowsingHistoryHandler::RegisterMessages() {
     // If |web_history| is not available, it means that the history sync is
     // disabled. Observe |sync_service| so that we can attach the listener
     // in case it gets enabled later.
-    ProfileSyncService* sync_service =
+    browser_sync::ProfileSyncService* sync_service =
         ProfileSyncServiceFactory::GetForProfile(profile);
     if (sync_service)
       sync_service_observer_.Add(sync_service);
@@ -766,7 +766,7 @@ void BrowsingHistoryHandler::ReturnResultsToFrontEnd() {
     supervised_user_service =
         SupervisedUserServiceFactory::GetForProfile(profile);
 #endif
-  ProfileSyncService* sync_service =
+  browser_sync::ProfileSyncService* sync_service =
       ProfileSyncServiceFactory::GetInstance()->GetForProfile(profile);
 
   // Combine the local and remote results into |query_results_|, and remove