Reland: Communicate ExtensionSettings policy to renderers

extensions/renderer/dispatcher.cc

Index: extensions/renderer/dispatcher.cc
diff --git a/extensions/renderer/dispatcher.cc b/extensions/renderer/dispatcher.cc
index 86aa53373ec9371b21aa27215aaa6fef99b7ab39..429056c9a998cde4a8b943890f35ff2811ad782d 100644
--- a/extensions/renderer/dispatcher.cc
+++ b/extensions/renderer/dispatcher.cc
@@ -908,6 +908,8 @@ bool Dispatcher::OnControlMessageReceived(const IPC::Message& message) {
   IPC_MESSAGE_HANDLER(ExtensionMsg_TransferBlobs, OnTransferBlobs)
   IPC_MESSAGE_HANDLER(ExtensionMsg_Unloaded, OnUnloaded)
   IPC_MESSAGE_HANDLER(ExtensionMsg_UpdatePermissions, OnUpdatePermissions)
+  IPC_MESSAGE_HANDLER(ExtensionMsg_UpdateDefaultPolicyHostRestrictions,
+                      OnUpdateDefaultPolicyHostRestrictions)
   IPC_MESSAGE_HANDLER(ExtensionMsg_UpdateTabSpecificPermissions,
                       OnUpdateTabSpecificPermissions)
   IPC_MESSAGE_HANDLER(ExtensionMsg_ClearTabSpecificPermissions,
@@ -1031,7 +1033,6 @@ void Dispatcher::OnLoaded(
       extension_load_errors_[param.id] = error;
       continue;
     }
-
     RendererExtensionRegistry* extension_registry =
         RendererExtensionRegistry::Get();
     // TODO(kalman): This test is deliberately not a CHECK (though I wish it
@@ -1048,12 +1049,18 @@ void Dispatcher::OnLoaded(
       // consider making this a release CHECK.
       NOTREACHED();
     }
+    if (param.uses_default_policy_blocked_allowed_hosts) {
+      extension->permissions_data()->SetUsesDefaultHostRestrictions();
+    } else {
+      extension->permissions_data()->SetPolicyHostRestrictions(
+          param.policy_blocked_hosts, param.policy_allowed_hosts);
+    }
   }
 
   // Update the available bindings for all contexts. These may have changed if
   // an externally_connectable extension was loaded that can connect to an
   // open webpage.
-  UpdateBindings("");
+  UpdateBindings(std::string());
 }
 
 void Dispatcher::OnMessageInvoke(const std::string& extension_id,
@@ -1180,6 +1187,13 @@ void Dispatcher::OnUnloaded(const std::string& id) {
   // extension's URL just won't match anything anymore.
 }
 
+void Dispatcher::OnUpdateDefaultPolicyHostRestrictions(
+    const ExtensionMsg_UpdateDefaultPolicyHostRestrictions_Params& params) {
+  PermissionsData::SetDefaultPolicyHostRestrictions(
+      params.default_policy_blocked_hosts, params.default_policy_allowed_hosts);
+  UpdateBindings(std::string());
+}
+
 void Dispatcher::OnUpdatePermissions(
     const ExtensionMsg_UpdatePermissions_Params& params) {
   const Extension* extension =
@@ -1199,6 +1213,12 @@ void Dispatcher::OnUpdatePermissions(
 
   extension->permissions_data()->SetPermissions(std::move(active),
                                                 std::move(withheld));
+  if (params.uses_default_policy_host_restrictions) {
+    extension->permissions_data()->SetUsesDefaultHostRestrictions();
+  } else {
+    extension->permissions_data()->SetPolicyHostRestrictions(
+        params.policy_blocked_hosts, params.policy_allowed_hosts);
+  }
   UpdateBindings(extension->id());
 }