Move ProgID methods from BrowserDistribution into install_static.

chrome/installer/util/google_chrome_distribution_dummy.cc

Index: chrome/installer/util/google_chrome_distribution_dummy.cc
diff --git a/chrome/installer/util/google_chrome_distribution_dummy.cc b/chrome/installer/util/google_chrome_distribution_dummy.cc
index 3e6eab3db44da2fbd0ea5d0ed8e721dcce63e500..a71b4f341a487782659e7b5559186a6decce64d4 100644
--- a/chrome/installer/util/google_chrome_distribution_dummy.cc
+++ b/chrome/installer/util/google_chrome_distribution_dummy.cc
@@ -52,14 +52,6 @@ int GoogleChromeDistribution::GetIconIndex() {
   return 0;
 }
 
-base::string16 GoogleChromeDistribution::GetBrowserProgIdPrefix() {
-  return base::string16();
-}
-
-base::string16 GoogleChromeDistribution::GetBrowserProgIdDesc() {
-  return base::string16();
-}
-
 base::string16 GoogleChromeDistribution::GetPublisherName() {
   return base::string16();
 }