Improve IndexedDB's quota support

content/browser/in_process_webkit/indexed_db_callbacks.h

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_BROWSER_IN_PROCESS_WEBKIT_INDEXED_DB_CALLBACKS_H_
 #define CONTENT_BROWSER_IN_PROCESS_WEBKIT_INDEXED_DB_CALLBACKS_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "base/memory/ref_counted.h"
 #include "content/browser/in_process_webkit/indexed_db_dispatcher_host.h"
 #include "googleurl/src/gurl.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebIDBCallbacks.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebIDBCursor.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebIDBDatabaseError.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebIDBTransaction.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebString.h"
 
 class IndexedDBMsg_CallbacksSuccessIDBIndex;
 class IndexedDBMsg_CallbacksSuccessIDBTransaction;
 
 // Template magic to figure out what message to send to the renderer based on
 // which (overloaded) onSuccess method we expect to be called.
 template <class Type> struct WebIDBToMsgHelper { };
 template <> struct WebIDBToMsgHelper<WebKit::WebIDBIndex> {
   typedef IndexedDBMsg_CallbacksSuccessIDBIndex MsgType;
 };
-template <> struct WebIDBToMsgHelper<WebKit::WebIDBTransaction> {
-  typedef IndexedDBMsg_CallbacksSuccessIDBTransaction MsgType;
-};
 
 // The code the following two classes share.
 class IndexedDBCallbacksBase : public WebKit::WebIDBCallbacks {
  public:
   IndexedDBCallbacksBase(IndexedDBDispatcherHost* dispatcher_host,
                          int32 response_id);
 
   virtual ~IndexedDBCallbacksBase();
 
   virtual void onError(const WebKit::WebIDBDatabaseError& error);
@@ skipping 25 matching lines @@
     dispatcher_host()->Send(
         new typename WebIDBToMsgHelper<WebObjectType>::MsgType(response_id(),
                                                                object_id));
   }
 
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(IndexedDBCallbacks);
 };
 
 template <>
+class IndexedDBCallbacks<WebKit::WebIDBTransaction>
+    : public IndexedDBCallbacksBase {
+ public:
+  IndexedDBCallbacks(
+      IndexedDBDispatcherHost* dispatcher_host, int32 response_id,
+      const GURL& origin_url)
+      : IndexedDBCallbacksBase(dispatcher_host, response_id),
+        origin_url_(origin_url) {
+  }
+
+  virtual void onSuccess(WebKit::WebIDBTransaction* idb_object);
+  const GURL& origin_url() const { return origin_url_; }
+
+ private:
+  const GURL& origin_url_;
+  DISALLOW_IMPLICIT_CONSTRUCTORS(IndexedDBCallbacks);
+};
+
+template <>
 class IndexedDBCallbacks<WebKit::WebIDBDatabase>
     : public IndexedDBCallbacksBase {
  public:
   IndexedDBCallbacks(
       IndexedDBDispatcherHost* dispatcher_host, int32 response_id,
       const GURL& origin_url)
       : IndexedDBCallbacksBase(dispatcher_host, response_id),
         origin_url_(origin_url) {
   }
 
@@ skipping 51 matching lines @@
       IndexedDBDispatcherHost* dispatcher_host, int32 response_id)
       : IndexedDBCallbacksBase(dispatcher_host, response_id) { }
 
   virtual void onSuccess(const WebKit::WebSerializedScriptValue& value);
 
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(IndexedDBCallbacks);
 };
 
 #endif  // CONTENT_BROWSER_IN_PROCESS_WEBKIT_INDEXED_DB_CALLBACKS_H_