Expose RenderFrameHost::GetLastCommittedOrigin().

content/public/browser/render_frame_host.h

Index: content/public/browser/render_frame_host.h
diff --git a/content/public/browser/render_frame_host.h b/content/public/browser/render_frame_host.h
index d26ec27c1972b2f843215726ec91809707fb7250..fbbe0aecba0dd49a0b49a4b5e5995ae816f8f30d 100644
--- a/content/public/browser/render_frame_host.h
+++ b/content/public/browser/render_frame_host.h
@@ -16,6 +16,7 @@
 #include "ui/gfx/geometry/rect.h"
 #include "ui/gfx/native_widget_types.h"
 #include "url/gurl.h"
+#include "url/origin.h"
 
 namespace base {
 class Value;
@@ -78,6 +79,9 @@ class CONTENT_EXPORT RenderFrameHost : public IPC::Listener,
   // Returns the last committed URL of the frame.
   virtual GURL GetLastCommittedURL() = 0;
 
+  // Returns the last committed origin of the frame.

[alexmos, 2015/11/24 18:23:48]

Is it worth adding some sort of note here that it's incorrect to call this on a
non-current RFH?

[ncarter (slow), 2015/11/24 19:35:08]

Done.

+  virtual url::Origin GetLastCommittedOrigin() = 0;
+
   // Returns the associated widget's native view.
   virtual gfx::NativeView GetNativeView() = 0;