Remove IsSynchronous API from NavigationHandle.

content/browser/frame_host/navigation_request.cc

Index: content/browser/frame_host/navigation_request.cc
diff --git a/content/browser/frame_host/navigation_request.cc b/content/browser/frame_host/navigation_request.cc
index 04429831faa4c727f0e8322621a229d452090566..2f9b11358b46707345b4e7e71449e274ef113406 100644
--- a/content/browser/frame_host/navigation_request.cc
+++ b/content/browser/frame_host/navigation_request.cc
@@ -240,11 +240,11 @@ void NavigationRequest::BeginNavigation() {
 
 void NavigationRequest::CreateNavigationHandle(int pending_nav_entry_id) {
   // TODO(nasko): Update the NavigationHandle creation to ensure that the
-  // proper values are specified for is_synchronous and is_srcdoc.
+  // proper values are specified for is_same_page and is_srcdoc.
   navigation_handle_ = NavigationHandleImpl::Create(
       common_params_.url, frame_tree_node_,
       !browser_initiated_,
-      false,  // is_synchronous
+      false,  // is_same_page
       false,  // is_srcdoc
       common_params_.navigation_start, pending_nav_entry_id);
 }