Initial IndexedDBQuotaClient implementation

content/browser/in_process_webkit/indexed_db_context.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_CONTEXT_H_
 #define CONTENT_BROWSER_IN_PROCESS_WEBKIT_INDEXED_DB_CONTEXT_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "base/file_path.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
+#include "content/browser/browser_thread.h"
 
 class GURL;
 class FilePath;
 class WebKitContext;
 
 namespace WebKit {
 class WebIDBFactory;
 }
 
+namespace base {
+class MessageLoopProxy;
+}
+
 namespace quota {
+class QuotaManagerProxy;
 class SpecialStoragePolicy;
 }
 
-class IndexedDBContext {
+struct DeleteOnWebKitThread;
+
+class IndexedDBContext :
+    public base::RefCountedThreadSafe<IndexedDBContext,
+                                      DeleteOnWebKitThread> {

[jam, 2011/05/28 03:08:51]

if you want to handle the leak in unittests, then create a fake
BrowserThread::WebKit like this 

http://codesearch.google.com/codesearch/p?hl=en#OAMlx_jo-ck/src/chrome/browse...

and call
MessageLoop::current()->RunAllPending();
in the destructor.

[dgrogan, 2011/05/31 23:26:07]

Thanks.  Done.

  public:
   IndexedDBContext(WebKitContext* webkit_context,
-                   quota::SpecialStoragePolicy* special_storage_policy);
+                   quota::SpecialStoragePolicy* special_storage_policy,
+                   quota::QuotaManagerProxy* quota_manager_proxy,
+                   base::MessageLoopProxy* webkit_thread_loop);
+
   ~IndexedDBContext();
 
   WebKit::WebIDBFactory* GetIDBFactory();
 
   // The indexed db directory.
   static const FilePath::CharType kIndexedDBDirectory[];
 
   // The indexed db file extension.
   static const FilePath::CharType kIndexedDBExtension[];
 
@@ skipping 22 matching lines @@
   scoped_ptr<WebKit::WebIDBFactory> idb_factory_;
 
   // Path where the indexed db data is stored
   FilePath data_path_;
 
   // True if the destructor should delete its files.
   bool clear_local_state_on_exit_;
 
   scoped_refptr<quota::SpecialStoragePolicy> special_storage_policy_;
 
+  scoped_refptr<quota::QuotaManagerProxy> quota_manager_proxy_;
+
   DISALLOW_COPY_AND_ASSIGN(IndexedDBContext);
 };
 
+// This was copied from browser_thread.h and modified.
+struct DeleteOnWebKitThread {
+  static void Destruct(const IndexedDBContext* x) {
+    BrowserThread::ID thread = BrowserThread::WEBKIT;
+    if (BrowserThread::CurrentlyOn(thread)) {
+      delete x;
+    } else {
+      if (!BrowserThread::DeleteSoon(thread, FROM_HERE, x)) {
+#if defined(UNIT_TEST)
+        LOG(INFO) << "DeleteSoon failed on thread, deleting locally" << thread;
+        delete x;
+#endif  // UNIT_TEST
+      }
+    }
+  }
+};
+
 #endif  // CONTENT_BROWSER_IN_PROCESS_WEBKIT_INDEXED_DB_CONTEXT_H_