Send navigation_start to the browser in DidStartProvisionalLoad IPC

content/browser/frame_host/render_frame_host_impl.cc

Index: content/browser/frame_host/render_frame_host_impl.cc
diff --git a/content/browser/frame_host/render_frame_host_impl.cc b/content/browser/frame_host/render_frame_host_impl.cc
index 9b5f7efe8d1a4a6c37210f9c4c04bfe2cd2051c7..e5f8eccfc3a937e9646ca70ec1fca9eb181195d6 100644
--- a/content/browser/frame_host/render_frame_host_impl.cc
+++ b/content/browser/frame_host/render_frame_host_impl.cc
@@ -796,9 +796,11 @@ void RenderFrameHostImpl::OnDocumentOnLoadCompleted(
   delegate_->DocumentOnLoadCompleted(this);
 }
 
-void RenderFrameHostImpl::OnDidStartProvisionalLoadForFrame(const GURL& url) {
-  frame_tree_node_->navigator()->DidStartProvisionalLoad(
-      this, url);
+void RenderFrameHostImpl::OnDidStartProvisionalLoadForFrame(
+    const GURL& url,
+    const base::TimeTicks& navigation_start) {
+  frame_tree_node_->navigator()->DidStartProvisionalLoad(this, url,
+                                                         navigation_start);
 }
 
 void RenderFrameHostImpl::OnDidFailProvisionalLoadWithError(
@@ -938,7 +940,7 @@ void RenderFrameHostImpl::OnDidCommitProvisionalLoad(const IPC::Message& msg) {
   // message.
   if (!navigation_handle_) {
     navigation_handle_ = NavigationHandleImpl::Create(
-        validated_params.url, frame_tree_node_);
+        validated_params.url, frame_tree_node_, base::TimeTicks::Now());
   }
 
   accessibility_reset_count_ = 0;