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

chrome/common/extensions/api/url_parser/homepage_url_handler.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/api/url_parser/homepage_url_handler.h"
+
+#include "base/memory/scoped_ptr.h"
+#include "base/utf_string_conversions.h"
+#include "base/values.h"
+#include "chrome/common/extensions/api/url_parser/url_info.h"
+#include "chrome/common/extensions/extension_manifest_constants.h"
+#include "extensions/common/error_utils.h"
+
+namespace keys = extension_manifest_keys;
+namespace errors = extension_manifest_errors;
+
+namespace extensions {
+
+HomepageURLHandler::HomepageURLHandler() {
+}
+
+HomepageURLHandler::~HomepageURLHandler() {
+}
+
+bool HomepageURLHandler::Parse(const base::Value* value,
+                               Extension* extension,
+                               string16* error) {
+  scoped_ptr<URLInfo> info(new URLInfo);
+  std::string homepage_url_str;
+  if (!value->GetAsString(&homepage_url_str)) {
+    *error = ErrorUtils::FormatErrorMessageUTF16(
+        errors::kInvalidHomepageURL, "");
+    return false;
+  }
+  info->url_ = GURL(homepage_url_str);
+  if (!info->url_.is_valid() ||
+      (!info->url_.SchemeIs("http") &&
+       !info->url_.SchemeIs("https"))) {
+    *error = ErrorUtils::FormatErrorMessageUTF16(
+        errors::kInvalidHomepageURL, homepage_url_str);
+    return false;
+  }
+  extension->SetManifestData(keys::kHomepageURL, info.release());
+  return true;
+}
+
+}  // namespace extensions