Adjust LocalStorage commit rate limiting.

content/browser/dom_storage/dom_storage_namespace.cc

 // Copyright 2013 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.
 
 #include "content/browser/dom_storage/dom_storage_namespace.h"
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/logging.h"
@@ skipping 41 matching lines @@
         session_storage_database_.get(), task_runner_.get());
   }
   areas_[origin] = AreaHolder(area, 1);
   return area;
 }
 
 void DOMStorageNamespace::CloseStorageArea(DOMStorageArea* area) {
   AreaHolder* holder = GetAreaHolder(area->origin());
   DCHECK(holder);
   DCHECK_EQ(holder->area_.get(), area);
-  --(holder->open_count_);
+  if (!--(holder->open_count_) && holder->area_->HasUncommittedChanges())
+    holder->area_->ScheduleImmediateCommit();
   // TODO(michaeln): Clean up areas that aren't needed in memory anymore.
   // The in-process-webkit based impl didn't do this either, but would be nice.
 }
 
 DOMStorageArea* DOMStorageNamespace::GetOpenStorageArea(const GURL& origin) {
   AreaHolder* holder = GetAreaHolder(origin);
   if (holder && holder->open_count_)
     return holder->area_.get();
   return NULL;
 }
@@ skipping 120 matching lines @@
 
 DOMStorageNamespace::AreaHolder::AreaHolder(
     DOMStorageArea* area, int count)
     : area_(area), open_count_(count) {
 }
 
 DOMStorageNamespace::AreaHolder::~AreaHolder() {
 }
 
 }  // namespace content