[Sync] Fix namespaces for the browser_sync component.

chrome/browser/ui/search/search_tab_helper_unittest.cc

Index: chrome/browser/ui/search/search_tab_helper_unittest.cc
diff --git a/chrome/browser/ui/search/search_tab_helper_unittest.cc b/chrome/browser/ui/search/search_tab_helper_unittest.cc
index f73c3663eafe531c67ca631aeca2b8eab80d839c..71fde0f7a2a34130e80f8d0210001fbbc7505d38 100644
--- a/chrome/browser/ui/search/search_tab_helper_unittest.cc
+++ b/chrome/browser/ui/search/search_tab_helper_unittest.cc
@@ -98,8 +98,9 @@ class SearchTabHelperTest : public ChromeRenderViewHostTestHarness {
 
   // Configure the account to |sync_history| or not.
   void SetHistorySync(bool sync_history) {
-    ProfileSyncServiceMock* sync_service = static_cast<ProfileSyncServiceMock*>(
-        ProfileSyncServiceFactory::GetInstance()->GetForProfile(profile()));
+    browser_sync::ProfileSyncServiceMock* sync_service =
+        static_cast<browser_sync::ProfileSyncServiceMock*>(
+            ProfileSyncServiceFactory::GetInstance()->GetForProfile(profile()));
 
     syncer::ModelTypeSet result;
     if (sync_history) {