Cleanup: Remove more unneeded browser_thread.h includes.

chrome/browser/browsing_data/browsing_data_quota_helper.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 "chrome/browser/browsing_data/browsing_data_quota_helper.h"
 
+#include "base/location.h"
+
 BrowsingDataQuotaHelper::QuotaInfo::QuotaInfo()
     : temporary_usage(0),
       persistent_usage(0) {}
 
 BrowsingDataQuotaHelper::QuotaInfo::QuotaInfo(const std::string& host)
     : host(host),
       temporary_usage(0),
       persistent_usage(0) {}
 
 BrowsingDataQuotaHelper::QuotaInfo::QuotaInfo(const std::string& host,
@@ skipping 27 matching lines @@
     return this->temporary_usage < rhs.temporary_usage;
   return this->persistent_usage < rhs.persistent_usage;
 }
 
 bool BrowsingDataQuotaHelper::QuotaInfo::operator ==(
     const BrowsingDataQuotaHelper::QuotaInfo& rhs) const {
   return this->host == rhs.host &&
       this->temporary_usage == rhs.temporary_usage &&
       this->persistent_usage == rhs.persistent_usage;
 }