Fix default apps losing the "bookmark app" bit once they get updated.

chrome/browser/extensions/external_extension_provider_interface.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_EXTERNAL_EXTENSION_PROVIDER_INTERFACE_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTERNAL_EXTENSION_PROVIDER_INTERFACE_H_
 #pragma once
 
 #include <vector>
 
@@ skipping 62 matching lines @@
   // if they are not NULL.  If an output parameter is not specified by the
   // provider type, it will not be changed.
   // This function is no longer used outside unit tests.
   virtual bool GetExtensionDetails(const std::string& id,
                                    Extension::Location* location,
                                    scoped_ptr<Version>* version) const = 0;
 
   // Determines if this provider had loaded the list of external extensions
   // from its source.
   virtual bool IsReady() const = 0;
+
+  // The creation flags that the provider passes to
+  // OnExternalExtensionFileFound.
+  virtual int creation_flags() const = 0;

[Aaron Boodman, 2012/01/15 06:09:18]

Virtual methods should not ever use unix_hacker style because they can't ever be
cheap/inlined.

[Mihai Parparita -not on Chrome, 2012/01/17 17:22:55]

Done.

 };
 
 typedef std::vector<linked_ptr<ExternalExtensionProviderInterface> >
     ProviderCollection;
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTERNAL_EXTENSION_PROVIDER_INTERFACE_H_