Prerender: NoStatePrefetch browser side changes.

chrome/browser/prerender/prerender_manager.h

Index: chrome/browser/prerender/prerender_manager.h
diff --git a/chrome/browser/prerender/prerender_manager.h b/chrome/browser/prerender/prerender_manager.h
index 0b97173c27fdaaa3ffb44e8fe3e4e1c4193480aa..e1086252f3b1d2748181fc558580188ebde3e2b2 100644
--- a/chrome/browser/prerender/prerender_manager.h
+++ b/chrome/browser/prerender/prerender_manager.h
@@ -83,7 +83,8 @@ class PrerenderManager : public base::SupportsWeakPtr<PrerenderManager>,
     PRERENDER_MODE_EXPERIMENT_MULTI_PRERENDER_GROUP = 6,
     PRERENDER_MODE_EXPERIMENT_15MIN_TTL_GROUP = 7,
     // Obsolete: PRERENDER_MODE_EXPERIMENT_MATCH_COMPLETE_GROUP = 8,
-    PRERENDER_MODE_MAX = 9
+    PRERENDER_MODE_NOSTATE_PREFETCH = 9,
+    PRERENDER_MODE_MAX = 10
   };
 
   // One or more of these flags must be passed to ClearData() to specify just
@@ -204,6 +205,7 @@ class PrerenderManager : public base::SupportsWeakPtr<PrerenderManager>,
   static bool ActuallyPrerendering();
   static bool IsControlGroup();
   static bool IsNoUseGroup();
+  static bool IsNoStatePrefetch();
 
   // Query the list of current prerender pages to see if the given web contents
   // is prerendering a page. The optional parameter |origin| is an output