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

chrome/browser/instant/instant_commit_type.h

Index: chrome/browser/instant/instant_commit_type.h
diff --git a/chrome/browser/instant/instant_commit_type.h b/chrome/browser/instant/instant_commit_type.h
index b02554256a842fa66597347db80571798a37911b..730e2c1a798275c3bccb2a8b4f9fbe427e6b24a8 100644
--- a/chrome/browser/instant/instant_commit_type.h
+++ b/chrome/browser/instant/instant_commit_type.h
@@ -17,6 +17,9 @@ enum InstantCommitType {
   // The commit is due to the omnibox losing focus, usually due to the user
   // clicking on the preview.
   INSTANT_COMMIT_FOCUS_LOST,
+
+  // The commit is due to the instant page navigating.
+  INSTANT_COMMIT_NAVIGATED,
 };
 
 #endif  // CHROME_BROWSER_INSTANT_INSTANT_COMMIT_TYPE_H_