Give SxS distribution its own registration GUIDs.

chrome/installer/util/browser_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 declares a class that contains various method related to branding.
 
 #ifndef CHROME_INSTALLER_UTIL_BROWSER_DISTRIBUTION_H_
 #define CHROME_INSTALLER_UTIL_BROWSER_DISTRIBUTION_H_
 
 #include <string>
@@ skipping 71 matching lines @@
   // |subfolder_type| that this distribution should create shortcuts in. For
   // SUBFOLDER_CHROME this returns GetShortcutName(SHORTCUT_CHROME).
   virtual string16 GetStartMenuShortcutSubfolder(Subfolder subfolder_type);
 
   // Returns the unsuffixed appid of this program.
   // The AppUserModelId is a property of Windows programs.
   // IMPORTANT: This should only be called by ShellUtil::GetAppId as the appid
   // should be suffixed in all scenarios.
   virtual string16 GetBaseAppId();
 
+  // Returns the Browser ProgId prefix (e.g. ChromeHTML, ChromiumHTM, etc...).
+  // The full id is of the form |prefix|.|suffix| and is limited to a maximum
+  // length of 39 characters including null-terminator.  See
+  // http://msdn.microsoft.com/library/aa911706.aspx for details.  We define
+  // |suffix| as a fixed-length 26-character alphanumeric identifier, therefore
+  // the return value of this function should have a maximum length of
+  // 39 - 1(null-term) - 26(|suffix|) - 1(dot separator) = 11 characters.
+  virtual string16 GetBrowserProgIdPrefix();
+
+  // Returns the Browser ProgId description.
+  virtual string16 GetBrowserProgIdDesc();
+
   virtual string16 GetInstallSubDir();
 
   virtual string16 GetPublisherName();
 
   virtual string16 GetAppDescription();
 
   virtual string16 GetLongAppDescription();
 
   virtual std::string GetSafeBrowsingName();
 
   virtual string16 GetStateKey();
 
   virtual string16 GetStateMediumKey();
 
   virtual std::string GetNetworkStatsServer() const;
 
   virtual std::string GetHttpPipeliningTestServer() const;
 
 #if defined(OS_WIN)
   virtual string16 GetDistributionData(HKEY root_key);
 #endif
 
   virtual string16 GetUninstallLinkName();
 
   virtual string16 GetUninstallRegPath();
 
   virtual string16 GetVersionKey();
 
+  // Returns true if this distribution can be set as the default browser.
   virtual bool CanSetAsDefault();
 
+  // Forces CanSetAsDefault() to return true.  For distributions where
+  // IsSetAsDefaultSupported() returns false, this function is a no-op.
+  virtual void DebugEnableSetAsDefault();
+
   virtual bool CanCreateDesktopShortcuts();
 
   virtual bool GetChromeChannel(string16* channel);
 
   // Returns true if this distribution includes a DelegateExecute verb handler,
   // and provides the CommandExecuteImpl class UUID if |handler_class_uuid| is
   // non-NULL.
-  virtual bool GetCommandExecuteImplClsid(string16* handler_class_uuid);
+  virtual bool GetCommandExecuteImplClsidString(string16* handler_class_uuid);

[grt (UTC plus 2), 2013/09/09 18:39:15]

please revert this to its original name to reduce needless code churn.

 
   // Returns true if this distribution uses app_host.exe to run platform apps.
   virtual bool AppHostIsSupported();
 
   virtual void UpdateInstallStatus(bool system_install,
       installer::ArchiveType archive_type,
       installer::InstallStatus install_status);
 
   // Returns true if this distribution should set the Omaha experiment_labels
   // registry value.
@@ skipping 10 matching lines @@
 
   const Type type_;
 
  private:
   BrowserDistribution();
 
   DISALLOW_COPY_AND_ASSIGN(BrowserDistribution);
 };
 
 #endif  // CHROME_INSTALLER_UTIL_BROWSER_DISTRIBUTION_H_