Prerender: NoStatePrefetch browser side changes.

chrome/browser/prerender/prerender_contents.h

Index: chrome/browser/prerender/prerender_contents.h
diff --git a/chrome/browser/prerender/prerender_contents.h b/chrome/browser/prerender/prerender_contents.h
index 9a48784a6fdc2bcba3cd159b51fe00f7a58722ae..b16e61cebe05866158f3ba0bc3020fa86175ced6 100644
--- a/chrome/browser/prerender/prerender_contents.h
+++ b/chrome/browser/prerender/prerender_contents.h
@@ -19,6 +19,7 @@
 #include "base/values.h"
 #include "chrome/browser/prerender/prerender_final_status.h"
 #include "chrome/browser/prerender/prerender_origin.h"
+#include "chrome/common/prerender_types.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "content/public/browser/web_contents_observer.h"
@@ -101,6 +102,11 @@ class PrerenderContents : public content::NotificationObserver,
 
   bool Init();
 
+  // Set the mode of this contents. This must be called before prerender has
+  // started.
+  void SetPrerenderMode(PrerenderMode mode);
+  PrerenderMode prerender_mode() const { return prerender_mode_; }
+
   static Factory* CreateFactory();
 
   // Returns a PrerenderContents from the given web_contents, if it's used for
@@ -264,6 +270,7 @@ class PrerenderContents : public content::NotificationObserver,
   content::WebContents* CreateWebContents(
       content::SessionStorageNamespace* session_storage_namespace);
 
+  PrerenderMode prerender_mode_;
   bool prerendering_has_started_;
 
   // Time at which we started to load the URL.  This is used to compute