Fix early prerender cancellation not working with PlzNavigate.

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 f5e26626328383cd022b6ba650c9fabbc13453cd..e8acddd8e5e45217aa5b1155e93c1ce8639157f7 100644
--- a/chrome/browser/prerender/prerender_contents.h
+++ b/chrome/browser/prerender/prerender_contents.h
@@ -235,6 +235,10 @@ class PrerenderContents : public content::NotificationObserver,
   // Increments the number of bytes fetched over the network for this prerender.
   void AddNetworkBytes(int64_t bytes);
 
+  bool prerendering_has_been_cancelled() const {
+    return prerendering_has_been_cancelled_;
+  }
+
  protected:
   PrerenderContents(PrerenderManager* prerender_manager,
                     Profile* profile,
@@ -263,10 +267,6 @@ class PrerenderContents : public content::NotificationObserver,
     return notification_registrar_;
   }
 
-  bool prerendering_has_been_cancelled() const {
-    return prerendering_has_been_cancelled_;
-  }
-
   content::WebContents* CreateWebContents(
       content::SessionStorageNamespace* session_storage_namespace);