Add SetSupportsQuic method to explicitly specify server that supports QUIC.

components/cronet/android/chromium_url_request.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/cronet/android/chromium_url_request.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_string.h"
 #include "base/macros.h"
 #include "components/cronet/android/url_request_adapter.h"
@@ skipping 369 matching lines @@
   }
 
   // Some implementations (notably HttpURLConnection) include a mapping for the
   // null key; in HTTP's case, this maps to the HTTP status line.
   ScopedJavaLocalRef<jstring> status_line =
       ConvertUTF8ToJavaString(env, headers->GetStatusLine());
   Java_ChromiumUrlRequest_onAppendResponseHeader(
       env, object, headersMap, NULL, status_line.Release());
 }
 
+static jstring GetNegotiatedProtocol(JNIEnv* env,
+                                     jobject object,
+                                     jlong urlRequestAdapter) {
+  URLRequestAdapter* request =
+      reinterpret_cast<URLRequestAdapter*>(urlRequestAdapter);
+  if (request == NULL)
+    return ConvertUTF8ToJavaString(env, "").Release();
+
+  std::string negotiated_protocol = request->GetNegotiatedProtocol();
+  return ConvertUTF8ToJavaString(env, negotiated_protocol.c_str()).Release();
+}
+
 }  // namespace cronet