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..4b654f5a0bced86c8dfdde9154c819fe2ae9481f 100644
--- a/chrome/installer/util/chromium_binaries_distribution.cc
+++ b/chrome/installer/util/chromium_binaries_distribution.cc
@@ -90,6 +90,10 @@ string16 ChromiumBinariesDistribution::GetVersionKey() {
   return string16(L"Software\\").append(kChromiumBinariesName);
 }
 
+bool ChromiumBinariesDistribution::IsSetAsDefaultSupported() {
+  return false;
+}
+
 bool ChromiumBinariesDistribution::CanSetAsDefault() {
   return false;
 }
@@ -104,7 +108,12 @@ bool ChromiumBinariesDistribution::GetChromeChannel(string16* channel) {
   return false;
 }
 
-bool ChromiumBinariesDistribution::GetCommandExecuteImplClsid(
+bool ChromiumBinariesDistribution::GetCommandExecuteImplClsidString(
     string16* handler_class_uuid) {
   return false;
 }
+
+bool ChromiumBinariesDistribution::GetCommandExecuteImplClsid(
+    CLSID* handler_class_uuid) {
+  return false;
+}