[Sync] Parse and save per-data type throttle data

chrome/browser/sync/sessions/sync_session_context.cc

Index: chrome/browser/sync/sessions/sync_session_context.cc
diff --git a/chrome/browser/sync/sessions/sync_session_context.cc b/chrome/browser/sync/sessions/sync_session_context.cc
index b92015ae43fb0c9d1c82740c8c2e8ef3c371cc89..c0aeb3445e8cef70bdf4716d6ad00f44814b661f 100644
--- a/chrome/browser/sync/sessions/sync_session_context.cc
+++ b/chrome/browser/sync/sessions/sync_session_context.cc
@@ -33,6 +33,14 @@ SyncSessionContext::SyncSessionContext(
     listeners_.AddObserver(*it);
 }
 
+SyncSessionContext::SyncSessionContext()
+    : connection_manager_(NULL),
+      directory_manager_(NULL),
+      registrar_(NULL),
+      extensions_activity_monitor_(NULL),
+      debug_info_getter_(NULL) {
+}
+
 SyncSessionContext::~SyncSessionContext() {
   // In unittests, there may be no UI thread, so the above will fail.
   if (!BrowserThread::DeleteSoon(BrowserThread::UI, FROM_HERE,
@@ -41,5 +49,14 @@ SyncSessionContext::~SyncSessionContext() {
   }
 }
 
+void SyncSessionContext::SetUnthrottleTime(const syncable::ModelTypeSet& types,
+                                           const base::TimeTicks& time) {
+  for (syncable::ModelTypeSet::const_iterator it = types.begin();
+       it != types.end();
+       ++it) {
+    unthrottle_times_[*it] = time;
+  }
+}
+
 }  // namespace sessions
 }  // namespace browser_sync