NoState Prefetch: nostate prefetch browser tests.

chrome/browser/prerender/prerender_contents.cc

Index: chrome/browser/prerender/prerender_contents.cc
diff --git a/chrome/browser/prerender/prerender_contents.cc b/chrome/browser/prerender/prerender_contents.cc
index 4ded1cb58613800c9ce874d741aef061fbf84c77..59007fa53c57623afe65cc189a352b051ffd679b 100644
--- a/chrome/browser/prerender/prerender_contents.cc
+++ b/chrome/browser/prerender/prerender_contents.cc
@@ -186,19 +186,7 @@ class PrerenderContents::WebContentsDelegateImpl
   PrerenderContents* prerender_contents_;
 };
 
-void PrerenderContents::Observer::OnPrerenderStopLoading(
-    PrerenderContents* contents) {
-}
-
-void PrerenderContents::Observer::OnPrerenderDomContentLoaded(
-    PrerenderContents* contents) {
-}
-
-PrerenderContents::Observer::Observer() {
-}
-
-PrerenderContents::Observer::~Observer() {
-}
+PrerenderContents::Observer::~Observer() {}
 
 PrerenderContents::PrerenderContents(
     PrerenderManager* prerender_manager,