Introduces AppActivity and handler of chrome.shell API.

athena/content/content_activity_factory.cc

Index: athena/content/content_activity_factory.cc
diff --git a/athena/content/content_activity_factory.cc b/athena/content/content_activity_factory.cc
index 4f74909164eeea342f25b7ff118e7e9a70bf29f0..3a086410f63f533a3bf5ca59661d09bd4b572766 100644
--- a/athena/content/content_activity_factory.cc
+++ b/athena/content/content_activity_factory.cc
@@ -4,6 +4,7 @@
 
 #include "athena/content/public/content_activity_factory.h"
 
+#include "athena/content/app_activity.h"
 #include "athena/content/web_activity.h"
 #include "base/logging.h"
 
@@ -21,24 +22,8 @@ Activity* ContentActivityFactory::CreateWebActivity(
 }
 
 Activity* ContentActivityFactory::CreateAppActivity(
-    content::BrowserContext* browser_context,
-    const std::string& app_id) {
-  // TODO(mukai): port the extension system and launch the app actually.
-  GURL url;
-  if (app_id == "mail")
-    url = GURL("https://mail.google.com/");
-  else if (app_id == "calendar")
-    url = GURL("https://calendar.google.com/");
-  else if (app_id == "video")
-    url = GURL("http://youtube.com/");
-  else if (app_id == "music")
-    url = GURL("https://play.google.com/music");
-  else if (app_id == "contact")
-    url = GURL("https://www.google.com/contacts");
-  else
-    LOG(FATAL) << "Unknown app id: " << app_id;
-  DCHECK(!url.is_empty());
-  return CreateWebActivity(browser_context, url);
+    apps::ShellAppWindow* app_window) {
+  return new AppActivity(app_window);
 }
 
 }  // namespace athena