[Sync] Componentize synced_tab_delegate

chrome/browser/sync/sessions/page_revisit_broadcaster.h

Index: chrome/browser/sync/sessions/page_revisit_broadcaster.h
diff --git a/chrome/browser/sync/sessions/page_revisit_broadcaster.h b/chrome/browser/sync/sessions/page_revisit_broadcaster.h
index d6d0fd42ae15635f46a955eea9e26bdc5dbb3a9c..77e9ab23bfac2f2e11b7b8451372cb31b46a763a 100644
--- a/chrome/browser/sync/sessions/page_revisit_broadcaster.h
+++ b/chrome/browser/sync/sessions/page_revisit_broadcaster.h
@@ -13,6 +13,10 @@
 class Profile;
 class PrefService;
 
+namespace sync_sessions {
+class SyncSessionsClient;
+}
+
 namespace browser_sync {
 
 class SessionsSyncManager;
@@ -22,7 +26,9 @@ class SessionsSyncManager;
 // revisists.
 class PageRevisitBroadcaster {
  public:
-  PageRevisitBroadcaster(SessionsSyncManager* manager, Profile* profile);
+  PageRevisitBroadcaster(SessionsSyncManager* manager,
+                         sync_sessions::SyncSessionsClient* sessions_client,
+                         Profile* profile);
   ~PageRevisitBroadcaster();
 
   // Broadcasts to all observers the given page visit event. Should only be
@@ -39,6 +45,9 @@ class PageRevisitBroadcaster {
   static sync_sessions::PageVisitObserver::TransitionType ConvertTransitionEnum(
       const ui::PageTransition original);
 
+  // The client of this sync sessions datatype.
+  sync_sessions::SyncSessionsClient* const sessions_client_;
+
   ScopedVector<sync_sessions::PageVisitObserver> revisit_observers_;
 
   DISALLOW_COPY_AND_ASSIGN(PageRevisitBroadcaster);