Remove all the ephemeral apps code.

chrome/browser/extensions/extension_install_prompt.h

 // 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 CHROME_BROWSER_EXTENSIONS_EXTENSION_INSTALL_PROMPT_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_INSTALL_PROMPT_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 45 matching lines @@
   // Do not modify existing values and add new values only to the end.
   enum PromptType {
     UNSET_PROMPT_TYPE = -1,
     INSTALL_PROMPT = 0,
     INLINE_INSTALL_PROMPT,
     BUNDLE_INSTALL_PROMPT,
     RE_ENABLE_PROMPT,
     PERMISSIONS_PROMPT,
     EXTERNAL_INSTALL_PROMPT,
     POST_INSTALL_PERMISSIONS_PROMPT,
-    LAUNCH_PROMPT,
+    LAUNCH_PROMPT_UNUSED,

[Devlin, 2015/12/07 16:53:59]

nit: I see "DEPRECATED" more frequently than UNUSED (unless there's a reason for
this phrasing?).

[benwells, 2015/12/08 07:20:11]

Done.

     REMOTE_INSTALL_PROMPT,
     REPAIR_PROMPT,
     DELEGATED_PERMISSIONS_PROMPT,
     DELEGATED_BUNDLE_PERMISSIONS_PROMPT,
     NUM_PROMPT_TYPES
   };
 
   // The last prompt type to display; only used for testing.
   static PromptType g_last_prompt_type_for_tests;
 
@@ skipping 388 matching lines @@
   Delegate* delegate_;
 
   // A pre-filled prompt.
   scoped_refptr<Prompt> prompt_;
 
   // Used to show the confirm dialog.
   ShowDialogCallback show_dialog_callback_;
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_INSTALL_PROMPT_H_