Cleanup: quota::HostQuotaCallback do not need to pass host and type as arguments

webkit/quota/usage_tracker.h

Index: webkit/quota/usage_tracker.h
diff --git a/webkit/quota/usage_tracker.h b/webkit/quota/usage_tracker.h
index 609e54d10fbfff6246ce9f263da19e7a252136c2..fc734663534722ad98b459fc500075d01d85136b 100644
--- a/webkit/quota/usage_tracker.h
+++ b/webkit/quota/usage_tracker.h
@@ -37,7 +37,7 @@ class UsageTracker : public QuotaTaskObserver {
   ClientUsageTracker* GetClientTracker(QuotaClient::ID client_id);
 
   void GetGlobalUsage(const GlobalUsageCallback& callback);
-  void GetHostUsage(const std::string& host, const HostUsageCallback& callback);
+  void GetHostUsage(const std::string& host, const UsageCallback& callback);
   void UpdateUsageCache(QuotaClient::ID client_id,
                         const GURL& origin,
                         int64 delta);
@@ -90,7 +90,7 @@ class ClientUsageTracker : public SpecialStoragePolicy::Observer,
   virtual ~ClientUsageTracker();
 
   void GetGlobalUsage(const GlobalUsageCallback& callback);
-  void GetHostUsage(const std::string& host, const HostUsageCallback& callback);
+  void GetHostUsage(const std::string& host, const UsageCallback& callback);
   void UpdateUsageCache(const GURL& origin, int64 delta);
   void GetCachedHostsUsage(std::map<std::string, int64>* host_usage) const;
   void GetCachedOrigins(std::set<GURL>* origins) const;
@@ -114,8 +114,7 @@ class ClientUsageTracker : public SpecialStoragePolicy::Observer,
   int64 GetCachedHostUsage(const std::string& host) const;
   int64 GetCachedGlobalUnlimitedUsage();
   virtual void OnSpecialStoragePolicyChanged() OVERRIDE;
-  void NoopHostUsageCallback(
-    const std::string& host,  StorageType type, int64 usage);
+  void NoopHostUsageCallback(int64 usage);
   bool IsStorageUnlimited(const GURL& origin) const;
 
   UsageTracker* tracker_;