Give SxS distribution its own registration GUIDs.

chrome/installer/util/google_chrome_sxs_distribution.cc

 // 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 defines implementation of GoogleChromeSxSDistribution.
 
 #include "chrome/installer/util/google_chrome_sxs_distribution.h"
 
 #include "base/command_line.h"
 #include "base/logging.h"
 
 #include "installer_util_strings.h"  // NOLINT
 
 namespace {
 
 const wchar_t kChromeSxSGuid[] = L"{4ea16ac7-fd5a-47c3-875b-dbf4a2008c20}";
 const wchar_t kChannelName[] = L"canary";
 const wchar_t kBrowserAppId[] = L"ChromeCanary";
 const int kSxSIconIndex = 4;
+const wchar_t kCommandExecuteImplUuid[] =
+  L"{1BEAC3E3-B852-44F4-B468-8906C062422E}";
 
 // The Chrome App Launcher Canary icon is index 6; see chrome_exe.rc.
 const int kSxSAppLauncherIconIndex = 6;
 
 }  // namespace
 
 GoogleChromeSxSDistribution::GoogleChromeSxSDistribution()
-    : GoogleChromeDistribution() {
+    : GoogleChromeDistribution(),
+      enable_set_as_default_(false) {
   GoogleChromeDistribution::set_product_guid(kChromeSxSGuid);
 }
 
 string16 GoogleChromeSxSDistribution::GetBaseAppName() {
   return L"Google Chrome Canary";
 }
 
 string16 GoogleChromeSxSDistribution::GetShortcutName(
     ShortcutType shortcut_type) {
   switch (shortcut_type) {
@@ skipping 19 matching lines @@
   return GoogleChromeDistribution::GetInstallSubDir().append(
       installer::kSxSSuffix);
 }
 
 string16 GoogleChromeSxSDistribution::GetUninstallRegPath() {
   return GoogleChromeDistribution::GetUninstallRegPath().append(
       installer::kSxSSuffix);
 }
 
 bool GoogleChromeSxSDistribution::CanSetAsDefault() {
-  return false;
+  return enable_set_as_default_;
+}
+
+void GoogleChromeSxSDistribution::DebugEnableSetAsDefault() {
+  enable_set_as_default_ = true;
 }
 
 int GoogleChromeSxSDistribution::GetIconIndex(ShortcutType shortcut_type) {
   if (shortcut_type == SHORTCUT_APP_LAUNCHER)
     return kSxSAppLauncherIconIndex;
   DCHECK(shortcut_type == SHORTCUT_CHROME ||
          shortcut_type == SHORTCUT_CHROME_ALTERNATE) << shortcut_type;
   return kSxSIconIndex;
 }
 
 bool GoogleChromeSxSDistribution::GetChromeChannel(string16* channel) {
   *channel = kChannelName;
   return true;
 }
 
 bool GoogleChromeSxSDistribution::GetCommandExecuteImplClsid(
     string16* handler_class_uuid) {
-  return false;
+  if (handler_class_uuid)
+    *handler_class_uuid = kCommandExecuteImplUuid;
+  return true;
 }
 
 bool GoogleChromeSxSDistribution::AppHostIsSupported() {
   return false;
 }
 
 bool GoogleChromeSxSDistribution::ShouldSetExperimentLabels() {
   return true;
 }
 
 bool GoogleChromeSxSDistribution::HasUserExperiments() {
   return true;
 }
 
 string16 GoogleChromeSxSDistribution::ChannelName() {
   return kChannelName;
 }