Implemented WebStateObserver::DidFinishNavigation(NavigationHandle*).

ios/web/public/web_state/ui/crw_web_delegate.h

Index: ios/web/public/web_state/ui/crw_web_delegate.h
diff --git a/ios/web/public/web_state/ui/crw_web_delegate.h b/ios/web/public/web_state/ui/crw_web_delegate.h
index d64f80440d08e8600d37124106b85985afba12c2..234da9deec63257bec4b5b83de7919c2a8b02e25 100644
--- a/ios/web/public/web_state/ui/crw_web_delegate.h
+++ b/ios/web/public/web_state/ui/crw_web_delegate.h
@@ -67,16 +67,14 @@ struct Referrer;
 // Called when the page URL has changed. Phase will be PAGE_LOADING. Can be
 // followed by webDidFinishWithURL or webWillStartLoadingURL.
 // |updateHistory| is YES if the URL should be added to the history DB.
-// TODO(stuartmorgan): Remove or rename the history param; the history DB
-// isn't a web concept, so this shoud be expressed differently.
+// TODO(crbug.com/692331): Remove this method and use |DidFinishNavigation|.
 - (void)webDidStartLoadingURL:(const GURL&)url
           shouldUpdateHistory:(BOOL)updateHistory;
 // Called when the page load was cancelled by page activity (before a success /
 // failure state is known). Phase will be PAGE_LOADED.
 - (void)webLoadCancelled:(const GURL&)url;
 // Called when a page updates its history stack using pushState or replaceState.
-// TODO(stuartmorgan): Generalize this to cover any change of URL without page
-// document change.
+// TODO(crbug.com/692331): Remove this method and use |DidFinishNavigation|.
 - (void)webDidUpdateHistoryStateWithPageURL:(const GURL&)pageUrl;
 // Called when a placeholder image should be displayed instead of the WebView.
 - (void)webController:(CRWWebController*)webController
@@ -100,6 +98,7 @@ struct Referrer;
             (const web::NavigationManager::WebLoadParams&)params
                         wasInitialNavigation:(BOOL)initialNavigation;
 // Called from finishHistoryNavigationFromEntry.
+// TODO(crbug.com/692331): Remove this method and use |DidFinishNavigation|.
 - (void)webWillFinishHistoryNavigationFromEntry:(CRWSessionEntry*)fromEntry;
 // ---------------------------------------------------------------------