Give SxS distribution its own registration GUIDs.

chrome/installer/util/chromium_binaries_distribution.cc

Index: chrome/installer/util/chromium_binaries_distribution.cc
diff --git a/chrome/installer/util/chromium_binaries_distribution.cc b/chrome/installer/util/chromium_binaries_distribution.cc
index 004e6176a69173716bcb5b5c4baee748c28f0fc0..c61989777cff44efa631b1e94c84f8039e14c6bf 100644
--- a/chrome/installer/util/chromium_binaries_distribution.cc
+++ b/chrome/installer/util/chromium_binaries_distribution.cc
@@ -29,6 +29,10 @@ string16 ChromiumBinariesDistribution::GetBaseAppName() {
   return string16();
 }
 
+string16 ChromiumBinariesDistribution::GetBrowserProgIdPrefix() {
+  return string16();

[gab, 2013/09/10 19:08:56]

+ NOTREACHED()

[zturner, 2013/09/11 20:19:53]

Done.

+}
+

[gab, 2013/09/10 19:08:56]

Also override GetBrowserProgIdDesc() here and in other places where you overrode
GetBrowserProgIdPrefix().

[zturner, 2013/09/11 20:19:53]

Done.

 string16 ChromiumBinariesDistribution::GetDisplayName() {
   return kChromiumBinariesName;
 }
@@ -104,7 +108,7 @@ bool ChromiumBinariesDistribution::GetChromeChannel(string16* channel) {
   return false;
 }
 
-bool ChromiumBinariesDistribution::GetCommandExecuteImplClsid(
+bool ChromiumBinariesDistribution::GetCommandExecuteImplClsidString(
     string16* handler_class_uuid) {
   return false;
 }