PlzNavigate: Support ResourceTiming API

third_party/WebKit/Source/platform/network/ResourceRequest.h

Index: third_party/WebKit/Source/platform/network/ResourceRequest.h
diff --git a/third_party/WebKit/Source/platform/network/ResourceRequest.h b/third_party/WebKit/Source/platform/network/ResourceRequest.h
index a43f60754a60f58a79bbd1ccf70706b6f0bdfd83..f69ed20626806f231259e555858e0d7cad2980e4 100644
--- a/third_party/WebKit/Source/platform/network/ResourceRequest.h
+++ b/third_party/WebKit/Source/platform/network/ResourceRequest.h
@@ -89,6 +89,9 @@ public:
     const KURL& url() const;
     void setURL(const KURL& url);
 
+    const KURL& initialUrl() const;
+    void setInitialURL(const KURL&);

[Nate Chapin, 2016/09/08 18:41:13]

Can we pull the initialURL off ResourceResponse, since it has the full redirect
chain? Less data duplication that way.

[arthursonzogni, 2016/09/09 12:45:33]

That is certainly one reason why I liked having the redirect responses inside
the request.

Currently, I use initialURL() inside PerformanceResourceTiming's constructor. I
certainly can add some method/arguments to PerformanceResourceTiming in order to
pass the initial url from the resource response.

My main concern is that I have some futur CLs that fix tests by simply use
request.initialURL() instead of request.url(). And there is no ResourceResponse
in the neighborhood.

I think I will remove initialURL() from ResourceRequest for the moment. 

+
     void removeCredentials();
 
     WebCachePolicy getCachePolicy() const;
@@ -237,6 +240,9 @@ public:
     void setRedirectStatus(RedirectStatus status) { m_redirectStatus = status; }
     RedirectStatus redirectStatus() const { return m_redirectStatus; }
 
+    void setNavigationStartTime(double);
+    double navigationStartTime() const { return m_navigationStart; }
+
 private:
     void initialize(const KURL&);
 
@@ -283,6 +289,9 @@ private:
     static double s_defaultTimeoutInterval;
 
     RedirectStatus m_redirectStatus;
+
+    KURL m_initialUrl;
+    double m_navigationStart = 0;
 };
 
 struct CrossThreadResourceRequestData {