Set IsInitialNavigation to false after commit, not document load.

content/browser/web_contents/navigation_controller_impl.h

Index: content/browser/web_contents/navigation_controller_impl.h
diff --git a/content/browser/web_contents/navigation_controller_impl.h b/content/browser/web_contents/navigation_controller_impl.h
index ac1b2a9425b0821a7b159b8b6c6012775f11b584..5027990f0f7b51a193b79a9341575fa54e75b239 100644
--- a/content/browser/web_contents/navigation_controller_impl.h
+++ b/content/browser/web_contents/navigation_controller_impl.h
@@ -79,7 +79,7 @@ class CONTENT_EXPORT NavigationControllerImpl
   virtual bool NeedsReload() const OVERRIDE;
   virtual void CancelPendingReload() OVERRIDE;
   virtual void ContinuePendingReload() OVERRIDE;
-  virtual bool IsInitialNavigation() OVERRIDE;
+  virtual bool IsInitialNavigation() const OVERRIDE;
   virtual void Reload(bool check_for_repost) OVERRIDE;
   virtual void ReloadIgnoringCache(bool check_for_repost) OVERRIDE;
   virtual void ReloadOriginalRequestURL(bool check_for_repost) OVERRIDE;
@@ -118,9 +118,6 @@ class CONTENT_EXPORT NavigationControllerImpl
     return web_contents_;
   }
 
-  // Called when a document has been loaded in a frame.
-  void DocumentLoadedInFrame();
-
   // For use by WebContentsImpl ------------------------------------------------
 
   // Handles updating the navigation state after the renderer has navigated.
@@ -380,7 +377,7 @@ class CONTENT_EXPORT NavigationControllerImpl
   bool needs_reload_;
 
   // Whether this is the initial navigation.
-  // Becomes false when initial navigation is loaded.
+  // Becomes false when initial navigation commits.
   bool is_initial_navigation_;
 
   // Used to find the appropriate SessionStorageNamespace for the storage