Correctly record and pass around navigation start time.

components/web_view/pending_web_view_load.h

Index: components/web_view/pending_web_view_load.h
diff --git a/components/web_view/pending_web_view_load.h b/components/web_view/pending_web_view_load.h
index b2a11217803bbc42ef4743e127fba35a15c4e0a9..b7070bd0c2cd400d69639037276e2cffc20f3efb 100644
--- a/components/web_view/pending_web_view_load.h
+++ b/components/web_view/pending_web_view_load.h
@@ -8,6 +8,7 @@
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
+#include "base/time/time.h"
 #include "mojo/services/network/public/interfaces/url_loader.mojom.h"
 #include "url/gurl.h"
 
@@ -35,6 +36,10 @@ class PendingWebViewLoad {
 
   const GURL& pending_url() const { return pending_url_; }
 
+  base::TimeTicks navigation_start_time() const {
+    return navigation_start_time_;
+  }
+
  private:
   void OnGotContentHandlerID();
 
@@ -45,6 +50,8 @@ class PendingWebViewLoad {
 
   scoped_ptr<FrameConnection> frame_connection_;
 
+  base::TimeTicks navigation_start_time_;
+
   DISALLOW_COPY_AND_ASSIGN(PendingWebViewLoad);
 };