Add SetSupportsQuic method to explicitly specify server that supports QUIC.

components/cronet/android/java/src/org/chromium/net/HttpUrlConnectionUrlRequest.java

Index: components/cronet/android/java/src/org/chromium/net/HttpUrlConnectionUrlRequest.java
diff --git a/components/cronet/android/java/src/org/chromium/net/HttpUrlConnectionUrlRequest.java b/components/cronet/android/java/src/org/chromium/net/HttpUrlConnectionUrlRequest.java
index 2bae9434dd6107c64a896bfc20f9bc7a9a1b1fe2..8e8dc36612d8181a61c3a7ffe84644301782e3e3 100644
--- a/components/cronet/android/java/src/org/chromium/net/HttpUrlConnectionUrlRequest.java
+++ b/components/cronet/android/java/src/org/chromium/net/HttpUrlConnectionUrlRequest.java
@@ -422,6 +422,11 @@ class HttpUrlConnectionUrlRequest implements HttpUrlRequest {
     }
 
     @Override
+    public String getNegotiatedProtocol() {
+        return "";

[Charles, 2014/09/09 17:03:56]

http/1.1?

[mef, 2014/09/10 16:48:17]

From what I see Chromium stack returns empty string if it has not negotiated any
NPN protocol.

+    }
+
+    @Override
     public int getHttpStatusCode() {
         int httpStatusCode = mHttpStatusCode;