Implement EvictOriginData in QuotaManager.

webkit/quota/quota_manager.h

Index: webkit/quota/quota_manager.h
diff --git a/webkit/quota/quota_manager.h b/webkit/quota/quota_manager.h
index e3375cc52bc99074d92f10f37596a71be3614fed..f3963196d43d852adfe409f409000dffbc8959f7 100644
--- a/webkit/quota/quota_manager.h
+++ b/webkit/quota/quota_manager.h
@@ -175,6 +175,10 @@ class QuotaManager : public QuotaTaskObserver,
   // Methods for eviction logic.
   void DeleteOriginFromDatabase(const GURL& origin, StorageType type);
 
+  void OnOriginDataEvicted(
+      QuotaStatusCode status,
+      EvictOriginDataCallback* callback);
+
   virtual void GetLRUOrigin(
       StorageType type,
       GetLRUOriginCallback* callback) OVERRIDE;
@@ -203,6 +207,9 @@ class QuotaManager : public QuotaTaskObserver,
 
   UsageAndQuotaDispatcherTaskMap usage_and_quota_dispatchers_;
 
+  int num_deletion_requested_clients_;
+  int num_deleted_clients_;
+
   int64 temporary_global_quota_;
   QuotaCallbackQueue temporary_global_quota_callbacks_;