Unplumb AllStatus from SyncerThread.

chrome/browser/sync/engine/all_status.h

Index: chrome/browser/sync/engine/all_status.h
diff --git a/chrome/browser/sync/engine/all_status.h b/chrome/browser/sync/engine/all_status.h
index a9f618dc2bce9e0f5f83d5eebb443c6a19280f7f..3989143b30441f4f7a9cb10a59cf51522216ec33 100644
--- a/chrome/browser/sync/engine/all_status.h
+++ b/chrome/browser/sync/engine/all_status.h
@@ -87,9 +87,6 @@ class AllStatus : public ChannelEventHandler<SyncerEvent> {
     int64 updates_received;
   };
 
-  // Maximum interval for exponential backoff.
-  static const int kMaxBackoffSeconds;
-
   AllStatus();
   ~AllStatus();
 
@@ -109,12 +106,6 @@ class AllStatus : public ChannelEventHandler<SyncerEvent> {
 
   Status status() const;
 
-  // DDOS avoidance function.  The argument and return value is in seconds
-  static int GetRecommendedDelaySeconds(int base_delay_seconds);
-
-  // This uses AllStatus' max_consecutive_errors as the error count
-  int GetRecommendedDelay(int base_delay) const;
-
   void SetNotificationsEnabled(bool notifications_enabled);
 
   void IncrementNotificationsSent();