Change allowed bindings to be per RenderFrame instead of per RenderView.

chrome/renderer/chrome_render_view_observer.cc

Index: chrome/renderer/chrome_render_view_observer.cc
diff --git a/chrome/renderer/chrome_render_view_observer.cc b/chrome/renderer/chrome_render_view_observer.cc
index f8f35743559d77c001b2288cde390cc59b60c1ce..5692c0b9262bdf76131b639c12664789e91e6260 100644
--- a/chrome/renderer/chrome_render_view_observer.cc
+++ b/chrome/renderer/chrome_render_view_observer.cc
@@ -165,7 +165,9 @@ void ChromeRenderViewObserver::OnSetVisuallyDeemphasized(bool deemphasized) {
 void ChromeRenderViewObserver::DidCommitProvisionalLoad(
     blink::WebLocalFrame* frame,
     bool is_new_navigation) {
-  if ((render_view()->GetEnabledBindings() & content::BINDINGS_POLICY_WEB_UI) &&
+  auto* render_frame = content::RenderFrame::FromWebFrame(frame);
+  if (render_frame->IsMainFrame() &&
+      (render_frame->GetEnabledBindings() & content::BINDINGS_POLICY_WEB_UI) &&
       !webui_javascript_.empty()) {
     for (const auto& script : webui_javascript_)
       render_view()->GetMainRenderFrame()->ExecuteJavaScript(script);