Delay generation of User-Agent header to URLRequestHttpJob and accept custom User-Agent from XHR/Fe…

third_party/WebKit/Source/web/AssociatedURLLoaderTest.cpp

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 598 matching lines @@
     CheckHeaderFails("dnt");
     CheckHeaderFails("expect");
     CheckHeaderFails("host");
     CheckHeaderFails("keep-alive");
     CheckHeaderFails("origin");
     CheckHeaderFails("referer", "http://example.com/");
     CheckHeaderFails("te");
     CheckHeaderFails("trailer");
     CheckHeaderFails("transfer-encoding");
     CheckHeaderFails("upgrade");
-    CheckHeaderFails("user-agent");
     CheckHeaderFails("via");
 
     CheckHeaderFails("proxy-");
     CheckHeaderFails("proxy-foo");
     CheckHeaderFails("sec-");
     CheckHeaderFails("sec-foo");
 
     // Check that validation is case-insensitive.
     CheckHeaderFails("AcCePt-ChArSeT");
     CheckHeaderFails("ProXy-FoO");
@@ skipping 50 matching lines @@
     m_expectedLoader->loadAsynchronously(request, this);
     serveRequests();
     EXPECT_TRUE(m_didReceiveResponse);
     EXPECT_TRUE(m_didReceiveData);
     EXPECT_TRUE(m_didFinishLoading);
 
     EXPECT_FALSE(m_actualResponse.httpHeaderField(headerNameString).isEmpty());
 }
 
 } // namespace blink