Move the parsing of "chrome_url_overrides" out of Extension.

chrome/browser/extensions/manifest_url_parser.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/extensions/manifest_url_parser.h"
 
 #include "base/lazy_instance.h"
+#include "chrome/browser/extensions/extension_web_ui.h"
 #include "chrome/browser/profiles/profile.h"
+#include "chrome/common/chrome_notification_types.h"
 #include "chrome/common/extensions/extension_manifest_constants.h"
 #include "chrome/common/extensions/manifest_handler.h"
 #include "chrome/common/extensions/manifest_url_handler.h"
+#include "content/public/browser/notification_details.h"
+#include "content/public/browser/notification_service.h"
 
 namespace extensions {
 
-ManifestURLParser::ManifestURLParser(Profile* profile) {
+ManifestURLParser::ManifestURLParser(Profile* profile)
+    : profile_(profile) {
   ManifestHandler::Register(extension_manifest_keys::kDevToolsPage,
                             new DevToolsPageHandler);
   ManifestHandler::Register(extension_manifest_keys::kHomepageURL,
                             new HomepageURLHandler);
+  ManifestHandler::Register(extension_manifest_keys::kChromeURLOverrides,
+                            new URLOverridesHandler);
+
+  registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_LOADED,
+                 content::Source<Profile>(profile));
+  registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_UNLOADED,
+                 content::Source<Profile>(profile));
 }
 
 ManifestURLParser::~ManifestURLParser() {
 }
 
+void ManifestURLParser::Observe(int type,
+                                const content::NotificationSource& source,
+                                const content::NotificationDetails& details) {
+  if (type == chrome::NOTIFICATION_EXTENSION_LOADED) {
+    const Extension* extension =
+        content::Details<const Extension>(details).ptr();
+    ExtensionWebUI::RegisterChromeURLOverrides(
+        profile_, URLOverrides::GetChromeURLOverrides(extension));
+
+  } else if (type == chrome::NOTIFICATION_EXTENSION_UNLOADED) {
+    const Extension* extension =
+        content::Details<const UnloadedExtensionInfo>(details)->extension;
+    ExtensionWebUI::UnregisterChromeURLOverrides(
+        profile_, URLOverrides::GetChromeURLOverrides(extension));
+  }
+}
+
 static base::LazyInstance<ProfileKeyedAPIFactory<ManifestURLParser> >
 g_factory = LAZY_INSTANCE_INITIALIZER;
 
 // static
 ProfileKeyedAPIFactory<ManifestURLParser>*
     ManifestURLParser::GetFactoryInstance() {
   return &g_factory.Get();
 }
 
 }  // namespace extensions