Implement QuotaTemporaryStorageEvictor.

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 d54336f7cfcba19c8b40457b867cb3c01d06ea7e..afea85776b76c42c391708e44eea2ad87b148954 100644
--- a/webkit/quota/quota_manager.h
+++ b/webkit/quota/quota_manager.h
@@ -25,6 +25,7 @@ class FilePath;
 namespace quota {
 
 class QuotaDatabase;
+class QuotaTemporaryStorageEvictor;
 class UsageTracker;
 
 struct QuotaManagerDeleter;
@@ -42,6 +43,7 @@ class QuotaManager : public QuotaTaskObserver,
                     int64 /* quota */>::Type GetUsageAndQuotaCallback;
   typedef Callback2<QuotaStatusCode,
                     int64 /* granted_quota */>::Type RequestQuotaCallback;
+  typedef Callback1<QuotaStatusCode>::Type DeleteOriginDataCallback;
 
   QuotaManager(bool is_incognito,
                const FilePath& profile_path,
@@ -103,6 +105,7 @@ class QuotaManager : public QuotaTaskObserver,
 
   friend struct QuotaManagerDeleter;
   friend class QuotaManagerProxy;
+  friend class QuotaTemporaryStorageEvictor;
 
   // This initialization method is lazily called on the IO thread
   // when the first quota manager API is called.
@@ -123,6 +126,13 @@ class QuotaManager : public QuotaTaskObserver,
                              StorageType type,
                              int64 delta);
 
+  // It must be called on the io_thread.
+  // It is called from QuotaTemporaryStorageEvictor.
+  virtual void DeleteOriginDataOnIOThread(

[kinuko, 2011/05/13 05:49:04]

nit: for now all the methods of QuotaManager need to be called on io thread
(it's noted in the comment at the top of this file), so maybe you can drop
OnIOThread from the method name.

[Dai Mikurube (NOT FULLTIME), 2011/05/13 07:52:40]

Done.

+      const GURL& origin,
+      StorageType type,
+      DeleteOriginDataCallback* callback);
+
   UsageTracker* GetUsageTracker(StorageType type) const;
 
   void DidGetTemporaryGlobalQuota(int64 quota);
@@ -143,6 +153,7 @@ class QuotaManager : public QuotaTaskObserver,
 
   scoped_ptr<UsageTracker> temporary_usage_tracker_;
   scoped_ptr<UsageTracker> persistent_usage_tracker_;
+  scoped_refptr<QuotaTemporaryStorageEvictor> temporary_storage_evictor_;
 
   UsageAndQuotaDispatcherTaskMap usage_and_quota_dispatchers_;