Install platform apps into a separate data directory

chrome/browser/web_applications/web_app_mac.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_WEB_APPLICATIONS_WEB_APP_MAC_H_
 #define CHROME_BROWSER_WEB_APPLICATIONS_WEB_APP_MAC_H_
 #pragma once
 
+#include "base/file_path.h"
 #include "chrome/browser/shell_integration.h"
 
 namespace web_app {
 
 // Creates a shortcut for a web application. The shortcut is a stub app
 // that simply loads the browser framework and runs the given app.
 class WebAppShortcutCreator {
  public:
   // Creates a new shortcut based on information in |shortcut_info|.
+  // The shortcut store its data directory in |web_app_path|.

[jeremy, 2012/02/12 09:40:28]

nit: store -> stores

   explicit WebAppShortcutCreator(
+      const FilePath& web_app_path,
       const ShellIntegration::ShortcutInfo& shortcut_info);
   virtual ~WebAppShortcutCreator();
 
   // Creates a shortcut.
   bool CreateShortcut();
 
  protected:
   // Returns a path to the app loader.
   FilePath GetAppLoaderPath() const;
 
   // Returns a path to the destination where the app should be written to.
   virtual FilePath GetDestinationPath(const FilePath& app_file_name) const;
 
   // Updates the plist inside |app_path| with information about the app.
   bool UpdatePlist(const FilePath& app_path) const;
 
   // Updates the icon for the shortcut.
   bool UpdateIcon(const FilePath& app_path) const;
 
  private:
+  // Path to the app's data directory. For example:
+  // ~/Library/Application Support/Chromium/Default/Web Applications/_crx_abc/
+  FilePath web_app_path_;
+
   // Information about the app.
   ShellIntegration::ShortcutInfo info_;
 };
 
 }  // namespace web_app
 
 #endif  // CHROME_BROWSER_WEB_APPLICATIONS_WEB_APP_MAC_H_