Fix for WebView accessible resources.

extensions/renderer/dispatcher.cc

Index: extensions/renderer/dispatcher.cc
diff --git a/extensions/renderer/dispatcher.cc b/extensions/renderer/dispatcher.cc
index 34324e2be1bf10a27c375337e720fd03c5a85029..df8839098f717b4ee85266e45b87944cdfc10fa0 100644
--- a/extensions/renderer/dispatcher.cc
+++ b/extensions/renderer/dispatcher.cc
@@ -990,7 +990,8 @@ void Dispatcher::OnDispatchOnDisconnect(int port_id,
 }
 
 void Dispatcher::OnLoaded(
-    const std::vector<ExtensionMsg_Loaded_Params>& loaded_extensions) {
+    const std::vector<ExtensionMsg_Loaded_Params>& loaded_extensions,
+    const std::string& webview_partition_id) {
   for (const auto& param : loaded_extensions) {
     std::string error;
     scoped_refptr<const Extension> extension = param.ConvertToExtension(&error);
@@ -1004,6 +1005,7 @@ void Dispatcher::OnLoaded(
 
     RendererExtensionRegistry* extension_registry =
         RendererExtensionRegistry::Get();
+    extension_registry->SetWebviewPartitionID(webview_partition_id);
     // TODO(kalman): This test is deliberately not a CHECK (though I wish it
     // could be) and uses extension->id() not params.id:
     // 1. For some reason params.id can be empty. I've only seen it with