Skeleton of sync handler on the I/O thread for GetSearchProviderInstallState.

chrome/renderer/external_extension.cc

Index: chrome/renderer/external_extension.cc
diff --git a/chrome/renderer/external_extension.cc b/chrome/renderer/external_extension.cc
index 8a1b6ecdf56e937c20b985f36f88f8a3a4184864..251a12a9dfea0a022aff246023ed9ae607ada147 100644
--- a/chrome/renderer/external_extension.cc
+++ b/chrome/renderer/external_extension.cc
@@ -124,8 +124,11 @@ v8::Handle<v8::Value> ExternalExtensionWrapper::IsSearchProviderInstalled(
   RenderView* render_view = GetRenderView();
   if (!render_view) return v8::Undefined();
 
+  WebFrame* webframe = WebFrame::frameForEnteredContext();
+  if (!webframe) return v8::Undefined();
+
   ViewHostMsg_GetSearchProviderInstallState_Params install
-      = render_view->GetSearchProviderInstallState(name);
+      = render_view->GetSearchProviderInstallState(webframe, name);
   if (install.state ==
       ViewHostMsg_GetSearchProviderInstallState_Params::DENIED) {
     // FIXME: throw access denied exception.