Use base::Callback in Quota related code.

content/browser/in_process_webkit/indexed_db_quota_client.h

Index: content/browser/in_process_webkit/indexed_db_quota_client.h
diff --git a/content/browser/in_process_webkit/indexed_db_quota_client.h b/content/browser/in_process_webkit/indexed_db_quota_client.h
index 29ded7b120aaa8fce9b92dc40a02a85ffc4a04cc..3261cad1e6e59eddf616968ca2160ddfaadc12fc 100644
--- a/content/browser/in_process_webkit/indexed_db_quota_client.h
+++ b/content/browser/in_process_webkit/indexed_db_quota_client.h
@@ -32,15 +32,15 @@ class IndexedDBQuotaClient : public quota::QuotaClient,
   virtual void OnQuotaManagerDestroyed() OVERRIDE;
   virtual void GetOriginUsage(const GURL& origin_url,
                               quota::StorageType type,
-                              GetUsageCallback* callback) OVERRIDE;
+                              GetUsageCallback callback) OVERRIDE;

[awong, 2011/09/29 18:05:15]

It's better to pass the Callback by const &.

[tzik, 2011/10/11 04:53:57]

Done.

   virtual void GetOriginsForType(quota::StorageType type,
-                                 GetOriginsCallback* callback) OVERRIDE;
+                                 GetOriginsCallback callback) OVERRIDE;

[awong, 2011/09/29 18:05:15]

pass by const &

[tzik, 2011/10/11 04:53:57]

Done.

   virtual void GetOriginsForHost(quota::StorageType type,
                                  const std::string& host,
-                                 GetOriginsCallback* callback) OVERRIDE;
+                                 GetOriginsCallback callback) OVERRIDE;

[awong, 2011/09/29 18:05:15]

pass by const &

[tzik, 2011/10/11 04:53:57]

Done.

   virtual void DeleteOriginData(const GURL& origin,
                                 quota::StorageType type,
-                                DeletionCallback* callback) OVERRIDE;
+                                DeletionCallback callback) OVERRIDE;

[awong, 2011/09/29 18:05:15]

pass by const &

[tzik, 2011/10/11 04:53:57]

Done.

  private:
   class HelperTask;
   class GetOriginUsageTask;
@@ -50,17 +50,17 @@ class IndexedDBQuotaClient : public quota::QuotaClient,
   class DeleteOriginTask;
 
   typedef quota::CallbackQueueMap1
-      <GetUsageCallback*,
+      <GetUsageCallback,
        GURL,  // origin
        int64
       > UsageForOriginCallbackMap;
   typedef quota::CallbackQueue2
-      <GetOriginsCallback*,
+      <GetOriginsCallback,
        const std::set<GURL>&,
        quota::StorageType
       > OriginsForTypeCallbackQueue;
   typedef quota::CallbackQueueMap2
-      <GetOriginsCallback*,
+      <GetOriginsCallback,
        std::string,  // host
        const std::set<GURL>&,
        quota::StorageType