Offer Resource Timing in workers

Source/core/loader/ThreadableLoaderClientWrapper.h

Index: Source/core/loader/ThreadableLoaderClientWrapper.h
diff --git a/Source/core/loader/ThreadableLoaderClientWrapper.h b/Source/core/loader/ThreadableLoaderClientWrapper.h
index eb3782ecf5b5461f61fd53893bd60fe735a5dd3c..5a57ffb5713c58d56a679ed2195247c0ebb58807 100644
--- a/Source/core/loader/ThreadableLoaderClientWrapper.h
+++ b/Source/core/loader/ThreadableLoaderClientWrapper.h
@@ -41,6 +41,11 @@ namespace blink {
 
 class ThreadableLoaderClientWrapper : public ThreadSafeRefCounted<ThreadableLoaderClientWrapper> {
 public:
+    class ResourceTimingClient {
+    public:
+        virtual void didReceiveResourceTiming(const ResourceTimingInfo&) = 0;
+    };
+
     static PassRefPtr<ThreadableLoaderClientWrapper> create(ThreadableLoaderClient* client)
     {
         return adoptRef(new ThreadableLoaderClientWrapper(client));
@@ -50,6 +55,7 @@ public:
     {
         m_done = true;
         m_client = 0;
+        clearResourceTimingClient();
     }
 
     bool done() const
@@ -57,6 +63,16 @@ public:
         return m_done;
     }
 
+    void setResourceTimingClient(ResourceTimingClient* client)
+    {
+        m_resourceTimingClient = client;
+    }
+
+    void clearResourceTimingClient()
+    {
+        m_resourceTimingClient = nullptr;
+    }
+
     void didSendData(unsigned long long bytesSent, unsigned long long totalBytesToBeSent)
     {
         if (m_client)
@@ -124,14 +140,22 @@ public:
             m_client->didDownloadData(dataLength);
     }
 
+    void didReceiveResourceTiming(const ResourceTimingInfo& info)
+    {
+        if (m_resourceTimingClient)
+            m_resourceTimingClient->didReceiveResourceTiming(info);
+    }
+
 protected:
     explicit ThreadableLoaderClientWrapper(ThreadableLoaderClient* client)
         : m_client(client)
+        , m_resourceTimingClient(nullptr)
         , m_done(false)
     {
     }
 
     ThreadableLoaderClient* m_client;
+    ResourceTimingClient* m_resourceTimingClient;
     bool m_done;
 };