Test to see if we can bring in document data from Blink.

content/renderer/render_frame_impl.cc

Index: content/renderer/render_frame_impl.cc
diff --git a/content/renderer/render_frame_impl.cc b/content/renderer/render_frame_impl.cc
index 79bdb6c8e4208d92625cf513e9fa736178563dc3..ce3b619f60921f838253344f120592691949e1bd 100644
--- a/content/renderer/render_frame_impl.cc
+++ b/content/renderer/render_frame_impl.cc
@@ -2925,10 +2925,13 @@ void RenderFrameImpl::willSubmitForm(const blink::WebFormElement& form) {
 }
 
 void RenderFrameImpl::didCreateDataSource(blink::WebLocalFrame* frame,
-                                          blink::WebDataSource* datasource) {
+                                          blink::WebDataSource* datasource,
+                                          int initiator) {
   DCHECK(!frame_ || frame_ == frame);
 
   bool content_initiated = !pending_navigation_params_.get();
+  if (initiator != 0)
+    DCHECK_EQ(content_initiated, initiator == 1);
 
   // Make sure any previous redirect URLs end up in our new data source.
   if (pending_navigation_params_.get()) {