Add policy controlled permission block list for extensions

extensions/browser/management_policy.cc

Index: extensions/browser/management_policy.cc
diff --git a/extensions/browser/management_policy.cc b/extensions/browser/management_policy.cc
index 50183d04884cd5596df851ad43c7f58a5aaaf90b..13f8c10ad00ed6d754020753eb365bc822a40572 100644
--- a/extensions/browser/management_policy.cc
+++ b/extensions/browser/management_policy.cc
@@ -55,6 +55,10 @@ void ManagementPolicy::UnregisterProvider(Provider* provider) {
   providers_.erase(provider);
 }
 
+void ManagementPolicy::RegisterProviders(std::vector<Provider*> providers) {
+  providers_.insert(providers.begin(), providers.end());
+}
+
 bool ManagementPolicy::UserMayLoad(const Extension* extension,
                                    base::string16* error) const {
   return ApplyToProviderList(&Provider::UserMayLoad, "Installation",