Rename apps::AppShell* to apps::Shell*

apps/shell/app_shell_main.cc

Index: apps/shell/app_shell_main.cc
diff --git a/apps/shell/app_shell_main.cc b/apps/shell/app_shell_main.cc
deleted file mode 100644
index ed7c100679799252c21c7d2868f0ed495ccc8385..0000000000000000000000000000000000000000
--- a/apps/shell/app_shell_main.cc
+++ /dev/null
@@ -1,11 +0,0 @@
-// Copyright (c) 2013 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 "apps/shell/app_shell_main_delegate.h"
-#include "content/public/app/content_main.h"
-
-int main(int argc, const char** argv) {
-  apps::AppShellMainDelegate delegate;
-  return content::ContentMain(argc, argv, &delegate);
-}