Add native permissions dialog for apps_devtools app.

chrome/browser/extensions/extension_permissions_prompt.h

Index: chrome/browser/extensions/extension_permissions_prompt.h
diff --git a/chrome/browser/extensions/extension_permissions_prompt.h b/chrome/browser/extensions/extension_permissions_prompt.h
new file mode 100644
index 0000000000000000000000000000000000000000..b3b8dd8480c481386b8c0fb9c91ddc5c0144e285
--- /dev/null
+++ b/chrome/browser/extensions/extension_permissions_prompt.h
@@ -0,0 +1,22 @@
+// 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.
+
+#ifndef CHROME_BROWSER_EXTENSIONS_EXTENSION_PERMISSIONS_PROMPT_H_
+#define CHROME_BROWSER_EXTENSIONS_EXTENSION_PERMISSIONS_PROMPT_H_
+
+#include "chrome/browser/extensions/extension_install_prompt.h"
+
+class ExtensionPermissionsPrompt : public ExtensionInstallPrompt {
+
+ public:
+
+  explicit ExtensionPermissionsPrompt(content::WebContents* contents);
+
+  // This *WILL* call Abort() on |delegate|.

[asargent_no_longer_on_chrome, 2013/03/20 21:46:30]

do you mean it will *always* call InstallUIAbort, and never InstallUIProceed?

[Gaurav, 2013/03/27 19:06:44]

yes

+  virtual void PermissionsDialog(Delegate* delegate,

[asargent_no_longer_on_chrome, 2013/03/20 21:46:30]

Is this delegate a ExtensionInstallPrompt::Delegate? If so even if that isn't
needed, it might be helpful to use the prefix just so it's clear to the reader
(I scanned up looking for Delegate expecting to see it locally defined, but
didn't find it). 

[Gaurav, 2013/03/27 19:06:44]

Done.

+                                 const extensions::Extension* extension);
+
+};
+
+#endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_PERMISSIONS_PROMPT_H_