Add pak file support for content shell and android apks.

content/shell/android/shell_descriptors.h

Index: content/shell/android/shell_descriptors.h
diff --git a/ipc/ipc_descriptors.h b/content/shell/android/shell_descriptors.h
similarity index 50%
copy from ipc/ipc_descriptors.h
copy to content/shell/android/shell_descriptors.h
index 5717aa4e8f3983bb569ad9a323f57c1f613615f8..73ebbd62a2f751c674745609f3602e8c4ddbd0ae 100644
--- a/ipc/ipc_descriptors.h
+++ b/content/shell/android/shell_descriptors.h
@@ -1,14 +1,14 @@
-// Copyright (c) 2009 The Chromium Authors. All rights reserved.
+// 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.
 
-#ifndef IPC_IPC_DESCRIPTORS_H_
-#define IPC_IPC_DESCRIPTORS_H_
+#ifndef CONTENT_SHELL_ANDROID_SHELL_DESCRIPTORS_H_
+#define CONTENT_SHELL_ANDROID_SHELL_DESCRIPTORS_H_
 
 // This is a list of global descriptor keys to be used with the
 // base::GlobalDescriptors object (see base/global_descriptors_posix.h)
 enum {
-  kPrimaryIPCChannel = 0,
+  kShellPakDescriptor = 1,
 };
 
-#endif  // IPC_IPC_DESCRIPTORS_H_
+#endif  // CONTENT_SHELL_ANDROID_SHELL_DESCRIPTORS_H_