Give SxS distribution its own registration GUIDs.

chrome/installer/util/google_chrome_distribution.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.
 //
 // This file extends generic BrowserDistribution class to declare Google Chrome
 // specific implementation.
 
 #ifndef CHROME_INSTALLER_UTIL_GOOGLE_CHROME_DISTRIBUTION_H_
 #define CHROME_INSTALLER_UTIL_GOOGLE_CHROME_DISTRIBUTION_H_
 
@@ skipping 28 matching lines @@
   virtual string16 GetShortcutName(ShortcutType shortcut_type) OVERRIDE;
 
   virtual string16 GetIconFilename() OVERRIDE;
 
   virtual int GetIconIndex(ShortcutType shortcut_type) OVERRIDE;
 
   virtual string16 GetBaseAppName() OVERRIDE;
 
   virtual string16 GetBaseAppId() OVERRIDE;
 
+  virtual string16 GetBrowserProgIdPrefix() OVERRIDE;
+
+  virtual string16 GetBrowserProgIdDesc() OVERRIDE;
+
   virtual string16 GetInstallSubDir() OVERRIDE;
 
   virtual string16 GetPublisherName() OVERRIDE;
 
   virtual string16 GetAppDescription() OVERRIDE;
 
   virtual std::string GetSafeBrowsingName() OVERRIDE;
 
   virtual string16 GetStateKey() OVERRIDE;
 
@@ skipping 37 matching lines @@
   GoogleChromeDistribution();
 
  private:
   friend class BrowserDistribution;
 
   // The product ID for Google Update.
   string16 product_guid_;
 };
 
 #endif  // CHROME_INSTALLER_UTIL_GOOGLE_CHROME_DISTRIBUTION_H_