Add a GetRegistryPath method to BrowserDistribution.

chrome/installer/util/browser_distribution.cc

Index: chrome/installer/util/browser_distribution.cc
diff --git a/chrome/installer/util/browser_distribution.cc b/chrome/installer/util/browser_distribution.cc
index e9eb6e719799db25a07a87f8cb74fdd51fc9aabf..3e2ef533a50041dec3220c687b4b7ba7e108341f 100644
--- a/chrome/installer/util/browser_distribution.cc
+++ b/chrome/installer/util/browser_distribution.cc
@@ -240,6 +240,10 @@ base::string16 BrowserDistribution::GetDistributionData(HKEY root_key) {
   return L"";
 }
 
+base::string16 BrowserDistribution::GetRegistryPath() {
+  return base::string16(L"Software\\").append(GetInstallSubDir());
+}
+
 base::string16 BrowserDistribution::GetUninstallRegPath() {
   return L"Software\\Microsoft\\Windows\\CurrentVersion\\Uninstall\\Chromium";
 }