Move the parsing of homepage_url" and "devtools_page" out of Extension.

chrome/common/extensions/manifest_url_info.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/common/extensions/manifest_url_info.h"
+
+#include "chrome/common/extensions/extension_manifest_constants.h"
+
+namespace keys = extension_manifest_keys;
+
+namespace extensions {
+
+// static
+const GURL& ManifestURLInfo::GetDevToolsPage(const Extension* extension) {
+  ManifestURLInfo* info = static_cast<ManifestURLInfo*>(
+      extension->GetManifestData(keys::kDevToolsPage));
+
+  if (info)
+    return info->url_;
+  return GURL::EmptyGURL();
+}
+
+// static
+const GURL ManifestURLInfo::GetHomepageURL(const Extension* extension) {
+  ManifestURLInfo* info = static_cast<ManifestURLInfo*>(
+      extension->GetManifestData(keys::kHomepageURL));
+
+  if (info && info->url_.is_valid())
+    return info->url_;
+  return extension->UpdatesFromGallery() ?
+      GURL(extension_urls::GetWebstoreItemDetailURLPrefix() + extension->id()) :
+      GURL::EmptyGURL();
+}
+
+}  // namespace extensions