Correctly record and pass around navigation start time.

components/web_view/url_request_cloneable.h

Index: components/web_view/url_request_cloneable.h
diff --git a/components/web_view/url_request_cloneable.h b/components/web_view/url_request_cloneable.h
index b8b3c3d0b2ffc23546314229285905df5803aa97..7bea7a0a194d905c4fa0c9ecde865b4d96960fff 100644
--- a/components/web_view/url_request_cloneable.h
+++ b/components/web_view/url_request_cloneable.h
@@ -9,6 +9,7 @@
 #include <vector>
 
 #include "base/basictypes.h"
+#include "base/time/time.h"
 #include "mojo/services/network/public/interfaces/url_loader.mojom.h"
 #include "url/gurl.h"
 
@@ -26,7 +27,7 @@ class URLRequestCloneable {
   ~URLRequestCloneable();
 
   // Creates a new URLRequest.
-  mojo::URLRequestPtr Clone() const;
+  mojo::URLRequestPtr Clone();
 
  private:
   // All of these are straight from mojo::URLRequest.
@@ -47,6 +48,8 @@ class URLRequestCloneable {
   // AsURLRequest() is called.
   std::vector<std::string> body_;
 
+  base::TimeTicks originating_time_;
+
   DISALLOW_COPY_AND_ASSIGN(URLRequestCloneable);
 };