Clear browsing data clears data for type kStorageTypeTemporary but not for kStorageTypeSyncable.

content/browser/renderer_host/quota_dispatcher_host.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 "content/browser/renderer_host/quota_dispatcher_host.h"
 
 #include "base/bind.h"
 #include "base/memory/weak_ptr.h"
 #include "content/common/quota_messages.h"
 #include "content/public/browser/quota_permission_context.h"
@@ skipping 91 matching lines @@
         host_(net::GetHostOrSpecFromURL(origin)),
         type_(type),
         current_quota_(0),
         requested_quota_(requested_quota),
         render_view_id_(render_view_id),
         weak_factory_(ALLOW_THIS_IN_INITIALIZER_LIST(this)) {}
   virtual ~RequestQuotaDispatcher() {}
 
   void Start() {
     DCHECK(type_ == quota::kStorageTypeTemporary ||
-           type_ == quota::kStorageTypePersistent);
+           type_ == quota::kStorageTypePersistent ||
+           type_ == quota::kStorageTypeSyncable);
     if (type_ == quota::kStorageTypePersistent) {
       quota_manager()->GetPersistentHostQuota(
           host_,
           base::Bind(&self_type::DidGetHostQuota,
                      weak_factory_.GetWeakPtr(), host_, type_));
     } else {
       quota_manager()->GetUsageAndQuota(
           origin_, type_,
           base::Bind(&self_type::DidGetTemporaryUsageAndQuota,
                      weak_factory_.GetWeakPtr()));
@@ skipping 125 matching lines @@
     Send(new QuotaMsg_DidFail(request_id, quota::kQuotaErrorNotSupported));
     return;
   }
 
   RequestQuotaDispatcher* dispatcher = new RequestQuotaDispatcher(
       this, request_id, origin, type, requested_size, render_view_id);
   dispatcher->Start();
 }
 
 }  // namespace content