[ServiceWorker] Implement Headers class.

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 8755eadef73cb54bb159524415c0a44a17567f28..56da8f8e063551615eb016d61474220d079395d5 100644
--- a/Source/core/loader/ThreadableLoaderClientWrapper.h
+++ b/Source/core/loader/ThreadableLoaderClientWrapper.h
@@ -97,19 +97,16 @@ public:
 
     void didFailAccessControlCheck(const ResourceError& error)
     {
-        // Let the client first handle the failure by possibly issuing
-        // a didFail() with a cancellation error before marking this
-        // wrapper as 'done'.
+        m_done = true;

[falken, 2014/06/27 02:08:06]

this change looks unrelated to Headers?

[horo, 2014/06/27 04:19:10]

Removed this file.
It was accidental included to this patch. 

         if (m_client)
             m_client->didFailAccessControlCheck(error);
-        m_done = true;
     }
 
     void didFailRedirectCheck()
     {
+        m_done = true;
         if (m_client)
             m_client->didFailRedirectCheck();
-        m_done = true;
     }
 
     void didReceiveAuthenticationCancellation(unsigned long identifier, const ResourceResponse& response)