Fixed navigation for displayed SSL interstitials.

ios/chrome/browser/tabs/tab.mm

Index: ios/chrome/browser/tabs/tab.mm
diff --git a/ios/chrome/browser/tabs/tab.mm b/ios/chrome/browser/tabs/tab.mm
index 75805cba2a676f1accfe4bcdb3d4c1ce42882681..7eaeed6a98d275bcba07ca9bb5f9af40ead97b02 100644
--- a/ios/chrome/browser/tabs/tab.mm
+++ b/ios/chrome/browser/tabs/tab.mm
@@ -1869,6 +1869,18 @@ void TabInfoBarObserver::OnInfoBarReplaced(infobars::InfoBar* old_infobar,
   [webControllerSnapshotHelper_ setSnapshotCoalescingEnabled:NO];
 }
 
+- (void)webState:(web::WebState*)webState
+    didChangeLoadingProgress:(double)progress {
+  // TODO(crbug.com/546406): It is probably possible to do something smarter,
+  // but the fact that this is not always sent will have to be taken into
+  // account.
+  [parentTabModel_ notifyTabChanged:self];
+}
+
+- (void)webStateDidDismissInterstitial:(web::WebState*)webState {
+  [parentTabModel_ notifyTabChanged:self];
+}
+
 - (void)webLoadCancelled:(const GURL&)url {
   // When a load is cancelled, this is the maximum that a page will ever load.
   [fullScreenController_ enableFullScreen];