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

content/public/renderer/render_frame.h

Index: content/public/renderer/render_frame.h
diff --git a/content/public/renderer/render_frame.h b/content/public/renderer/render_frame.h
index 626229b8e8c3f4376bbfbeeeb17ff44fd6d08cff..5fd60681e7a9b6b184bec3a365c1005349807cab 100644
--- a/content/public/renderer/render_frame.h
+++ b/content/public/renderer/render_frame.h
@@ -242,6 +242,10 @@ class CONTENT_EXPORT RenderFrame : public IPC::Listener,
   // requests navigation until the browser responds with the result.
   virtual bool IsBrowserSideNavigationPending() = 0;
 
+  // Bitwise-ORed set of extra bindings that have been enabled.  See
+  // BindingsPolicy for details.
+  virtual int GetEnabledBindings() const = 0;
+
  protected:
   ~RenderFrame() override {}