Remove IsSynchronous API from NavigationHandle.

content/browser/frame_host/navigator_impl.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/frame_host/navigator_impl.h"
 
 #include <utility>
 
 #include "base/logging.h"
 #include "base/metrics/histogram_macros.h"
@@ skipping 189 matching lines @@
   NavigationEntryImpl* pending_entry = controller_->GetPendingEntry();
   if (pending_entry) {
     is_renderer_initiated = pending_entry->is_renderer_initiated();
     pending_nav_entry_id = pending_entry->GetUniqueID();
     started_from_context_menu = pending_entry->has_started_from_context_menu();
   }
 
   render_frame_host->SetNavigationHandle(NavigationHandleImpl::Create(
       validated_url, render_frame_host->frame_tree_node(),
       is_renderer_initiated,
-      false,             // is_synchronous
+      false,             // is_same_page
       is_iframe_srcdoc,  // is_srcdoc
       navigation_start, pending_nav_entry_id, started_from_context_menu));
 }
 
 void NavigatorImpl::DidFailProvisionalLoadWithError(
     RenderFrameHostImpl* render_frame_host,
     const FrameHostMsg_DidFailProvisionalLoadWithError_Params& params) {
   VLOG(1) << "Failed Provisional Load: " << params.url.possibly_invalid_spec()
           << ", error_code: " << params.error_code
           << ", error_description: " << params.error_description
@@ skipping 1030 matching lines @@
     if (navigation_handle)
       navigation_handle->update_entry_id_for_transfer(entry->GetUniqueID());
 
     controller_->SetPendingEntry(std::move(entry));
     if (delegate_)
       delegate_->NotifyChangedNavigationState(content::INVALIDATE_TYPE_URL);
   }
 }
 
 }  // namespace content