Initial PlzNavigate RDH-side logic.

content/browser/frame_host/navigator.h

Index: content/browser/frame_host/navigator.h
diff --git a/content/browser/frame_host/navigator.h b/content/browser/frame_host/navigator.h
index af8e71ec151a6eb8f33b8e916dc8b3c380096fa3..96762fd28f76e91e3bfbf552394c03e397e2cae0 100644
--- a/content/browser/frame_host/navigator.h
+++ b/content/browser/frame_host/navigator.h
@@ -25,7 +25,8 @@ class NavigationControllerImpl;
 class NavigationEntryImpl;
 class NavigatorDelegate;
 class RenderFrameHostImpl;
-struct NavigationBeforeCommitInfo;
+class StreamHandle;
+struct ResourceResponse;
 
 // Implementations of this interface are responsible for performing navigations
 // in a node of the FrameTree. Its lifetime is bound to all FrameTreeNode
@@ -124,7 +125,9 @@ class CONTENT_EXPORT Navigator : public base::RefCounted<Navigator> {
   // Signal |render_frame_host| that a navigation is ready to commit (the
   // response to the navigation request has been received).
   virtual void CommitNavigation(RenderFrameHostImpl* render_frame_host,
-                                const NavigationBeforeCommitInfo& info) {};
+                                const GURL& url,
+                                ResourceResponse* response,

[nasko, 2014/09/24 21:15:34]

nit: response to me indicates the full response, where it is just the headers.
Not sure if response_headers is better though.

[davidben, 2014/10/03 16:27:51]

Hrm. So, if it changes here, it should also change everywhere else this object
is passed around, all the way back to the resource loader stack. Which I'd
rather not do in this CL.

(It also has a bit more metadata than just the headers.)

+                                scoped_ptr<StreamHandle> body);
 
  protected:
   friend class base::RefCounted<Navigator>;