Remove any use of BalsaHeaders and HttpMessage from QuicTestClient.

net/quic/core/spdy_utils.cc

Index: net/quic/core/spdy_utils.cc
diff --git a/net/quic/core/spdy_utils.cc b/net/quic/core/spdy_utils.cc
index 3eb596f8554c0a50775fa9476b15ea4b202e7c32..222001368ffadb8a9cf05eef4a18c75aefd6d32b 100644
--- a/net/quic/core/spdy_utils.cc
+++ b/net/quic/core/spdy_utils.cc
@@ -251,7 +251,9 @@ bool SpdyUtils::PopulateHeaderBlockFromUrl(const string url,
   size_t start = pos + 3;
   pos = url.find("/", start);
   if (pos == string::npos) {
-    return false;
+    (*headers)[":authority"] = url.substr(start);
+    (*headers)[":path"] = "/";
+    return true;
   }
   (*headers)[":authority"] = url.substr(start, pos - start);
   (*headers)[":path"] = url.substr(pos);