[Sync] Move SyncPrefs into sync_driver component

chrome/browser/sync/profile_sync_components_factory.h

Index: chrome/browser/sync/profile_sync_components_factory.h
diff --git a/chrome/browser/sync/profile_sync_components_factory.h b/chrome/browser/sync/profile_sync_components_factory.h
index 36058e78f15609220e9e8ec42144f757eb3b3b8a..3212f11036b366dc86f6d3ec0695180d019e98fb 100644
--- a/chrome/browser/sync/profile_sync_components_factory.h
+++ b/chrome/browser/sync/profile_sync_components_factory.h
@@ -29,10 +29,13 @@ class FailedDataTypesHandler;
 class GenericChangeProcessor;
 class SharedChangeProcessor;
 class SyncBackendHost;
-class SyncPrefs;
 class DataTypeErrorHandler;
 }  // namespace browser_sync
 
+namespace sync_driver {
+class SyncPrefs;
+}
+
 namespace syncer {
 class DataTypeDebugInfoListener;
 class SyncableService;
@@ -88,7 +91,7 @@ class ProfileSyncComponentsFactory {
   virtual browser_sync::SyncBackendHost* CreateSyncBackendHost(
       const std::string& name,
       Profile* profile,
-      const base::WeakPtr<browser_sync::SyncPrefs>& sync_prefs) = 0;
+      const base::WeakPtr<sync_driver::SyncPrefs>& sync_prefs) = 0;
 
   // Creating this in the factory helps us mock it out in testing.
   virtual browser_sync::GenericChangeProcessor* CreateGenericChangeProcessor(