Add IPC plumbing code for Quota API

content/browser/renderer_host/quota_dispatcher_host.cc

+// Copyright (c) 2011 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 "content/common/quota_messages.h"
+#include "googleurl/src/gurl.h"
+
+QuotaDispatcherHost::~QuotaDispatcherHost() {
+}
+
+bool QuotaDispatcherHost::OnMessageReceived(
+    const IPC::Message& message, bool* message_was_ok) {
+  *message_was_ok = true;
+  bool handled = true;
+  IPC_BEGIN_MESSAGE_MAP_EX(QuotaDispatcherHost, message, *message_was_ok)
+    IPC_MESSAGE_HANDLER(QuotaHostMsg_QueryStorageUsageAndQuota,
+                        OnQueryStorageUsageAndQuota)
+    IPC_MESSAGE_HANDLER(QuotaHostMsg_RequestStorageQuota,
+                        OnRequestStorageQuota)
+    IPC_MESSAGE_UNHANDLED(handled = false)
+  IPC_END_MESSAGE_MAP_EX()
+  return handled;
+}
+
+void QuotaDispatcherHost::OnQueryStorageUsageAndQuota(
+    int request_id,
+    const GURL& origin,
+    WebKit::WebStorageQuotaType type) {
+  // TODO(kinuko): not implemented yet.
+  Send(new QuotaMsg_DidFail(
+      request_id,
+      WebKit::WebStorageQuotaErrorNotSupported));
+}
+
+void QuotaDispatcherHost::OnRequestStorageQuota(
+    int request_id,
+    const GURL& origin,
+    WebKit::WebStorageQuotaType type,
+    int64 requested_size) {
+  // TODO(kinuko): not implemented yet.
+  Send(new QuotaMsg_DidFail(
+      request_id,
+      WebKit::WebStorageQuotaErrorNotSupported));
+}