Implement QuotaTemporaryStorageEvictor.

webkit/quota/quota_task.h

Index: webkit/quota/quota_task.h
diff --git a/webkit/quota/quota_task.h b/webkit/quota/quota_task.h
index f866743ccf808b0f6c5cbf91f9eb4e39ce60f7aa..a692f8b106e1a7bc1df569631e0e2971e4c8c55d 100644
--- a/webkit/quota/quota_task.h
+++ b/webkit/quota/quota_task.h
@@ -78,6 +78,21 @@ class QuotaThreadTask : public QuotaTask,
   scoped_refptr<base::MessageLoopProxy> target_message_loop_;
 };
 
+// For delayed tasks that post tasks to the other thread.
+class QuotaDelayedThreadTask : public QuotaThreadTask {
+ public:
+  QuotaDelayedThreadTask(
+      QuotaTaskObserver* observer,
+      scoped_refptr<base::MessageLoopProxy> target_message_loop
+      int64 delay_ms);
+
+ protected:
+  virtual void Run() OVERRIDE;
+
+ private:
+  int64 delay_ms_;
+};
+
 class QuotaTaskObserver {
  public:
   virtual ~QuotaTaskObserver();