Remove IsSynchronous API from NavigationHandle.

chrome/browser/ssl/chrome_security_state_model_client.cc

Index: chrome/browser/ssl/chrome_security_state_model_client.cc
diff --git a/chrome/browser/ssl/chrome_security_state_model_client.cc b/chrome/browser/ssl/chrome_security_state_model_client.cc
index 5b7097e4b4e89c8b0c8ad8d31ffc030aa4cd8fbe..8b79a30a37e4882e7671207124c708667760adc8 100644
--- a/chrome/browser/ssl/chrome_security_state_model_client.cc
+++ b/chrome/browser/ssl/chrome_security_state_model_client.cc
@@ -362,11 +362,9 @@ void ChromeSecurityStateModelClient::VisibleSSLStateChanged() {
 
 void ChromeSecurityStateModelClient::DidFinishNavigation(
     content::NavigationHandle* navigation_handle) {
-  if (navigation_handle->IsInMainFrame() &&
-      !navigation_handle->IsSynchronousNavigation()) {
+  if (navigation_handle->IsInMainFrame() && !navigation_handle->IsSamePage()) {
     // Only reset the console message flag for main-frame navigations,
-    // and not for synchronous navigations like reference fragments and
-    // pushState.
+    // and not for same-page navigations like reference fragments and pushState.
     logged_http_warning_on_current_navigation_ = false;
   }
 }