Move QuotaPermissionContext to content/public/browser and put it in the content namespace.

content/browser/renderer_host/quota_dispatcher_host.cc

Index: content/browser/renderer_host/quota_dispatcher_host.cc
diff --git a/content/browser/renderer_host/quota_dispatcher_host.cc b/content/browser/renderer_host/quota_dispatcher_host.cc
index 4ff7ea81328639fa0052023fded66c1937a2a115..22f20912dd87e41d95e5b178bd1cbcf23a625adc 100644
--- a/content/browser/renderer_host/quota_dispatcher_host.cc
+++ b/content/browser/renderer_host/quota_dispatcher_host.cc
@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// 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.
 
@@ -6,12 +6,13 @@
 
 #include "base/bind.h"
 #include "base/memory/weak_ptr.h"
-#include "content/browser/quota_permission_context.h"
 #include "content/common/quota_messages.h"
+#include "content/public/browser/quota_permission_context.h"
 #include "googleurl/src/gurl.h"
 #include "net/base/net_util.h"
 #include "webkit/quota/quota_manager.h"
 
+using content::QuotaPermissionContext;
 using quota::QuotaClient;
 using quota::QuotaManager;
 using quota::QuotaStatusCode;