[Quota] Wire up limited origin usage retrieving.

webkit/browser/fileapi/sandbox_mount_point_provider.cc

 // Copyright (c) 2012 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 "webkit/browser/fileapi/sandbox_mount_point_provider.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/logging.h"
@@ skipping 305 matching lines @@
   operation_context->set_update_observers(update_observers_);
   operation_context->set_access_observers(access_observers_);
 
   if (special_storage_policy_ &&
       special_storage_policy_->IsStorageUnlimited(url.origin())) {
     operation_context->set_quota_limit_type(quota::kQuotaLimitTypeUnlimited);
   } else {
     operation_context->set_quota_limit_type(quota::kQuotaLimitTypeLimited);
   }
 
-  // Temporarily disable returning unlimited storage policy for non-PERSISTENT
-  // storage. Since it may hurt performance for all FileSystem operation.
-  if (url.type() != kFileSystemTypePersistent &&
-      operation_context->quota_limit_type() == quota::kQuotaLimitTypeUnlimited)
-    operation_context->set_quota_limit_type(quota::kQuotaLimitTypeLimited);
-
   return new LocalFileSystemOperation(context, operation_context.Pass());
 }
 
 scoped_ptr<webkit_blob::FileStreamReader>
 SandboxMountPointProvider::CreateFileStreamReader(
     const FileSystemURL& url,
     int64 offset,
     const base::Time& expected_modification_time,
     FileSystemContext* context) const {
   return scoped_ptr<webkit_blob::FileStreamReader>(
@@ skipping 328 matching lines @@
 
   while (!(file_path_each = enumerator->Next()).empty()) {
     usage += enumerator->Size();
     usage += ObfuscatedFileUtil::ComputeFilePathCost(file_path_each);
   }
 
   return usage;
 }
 
 }  // namespace fileapi