Commit instant loader when the instant page navigates away from instant URL.

chrome/browser/instant/instant_loader.cc

Index: chrome/browser/instant/instant_loader.cc
diff --git a/chrome/browser/instant/instant_loader.cc b/chrome/browser/instant/instant_loader.cc
index f8debd2f033f81bad4370fd6a0fd1896f070038e..997dfeb6e6b84e253f55e449a1788318ff8311c8 100644
--- a/chrome/browser/instant/instant_loader.cc
+++ b/chrome/browser/instant/instant_loader.cc
@@ -291,6 +291,10 @@ void InstantLoader::StopCapturingKeyStrokes() {
   // focus) doesn't require doing anything explicitly here.
 }
 
+void InstantLoader::AboutToNavigateMainFrame(const GURL& url) {
+  controller_->InstantLoaderAboutToNavigateMainFrame(url);
+}
+
 void InstantLoader::Observe(int type,
                             const content::NotificationSource& source,
                             const content::NotificationDetails& details) {