Add SetSupportsQuic method to explicitly specify server that supports QUIC.

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

Index: components/cronet/android/java/src/org/chromium/net/HttpUrlRequestFactoryConfig.java
diff --git a/components/cronet/android/java/src/org/chromium/net/HttpUrlRequestFactoryConfig.java b/components/cronet/android/java/src/org/chromium/net/HttpUrlRequestFactoryConfig.java
index 913bae8585e2037268fbb02a54e9bdb6fd285244..872275a24102414a1f41ad50efb44f17cce9152e 100644
--- a/components/cronet/android/java/src/org/chromium/net/HttpUrlRequestFactoryConfig.java
+++ b/components/cronet/android/java/src/org/chromium/net/HttpUrlRequestFactoryConfig.java
@@ -4,6 +4,7 @@
 
 package org.chromium.net;
 
+import org.json.JSONArray;
 import org.json.JSONException;
 import org.json.JSONObject;
 
@@ -86,6 +87,33 @@ public class HttpUrlRequestFactoryConfig {
     }
 
     /**
+     * Explicitly mark |server| as supporting QUIC.
+     * Note that enableHttpCache(DISK) is needed to take advantage or 0-RTT.

[mmenke, 2014/09/09 14:53:35]

nit:  or -> of.

Also, maybe add "0-RTT connection establishment between sessions."

[mef, 2014/09/10 16:48:18]

Done.

+     *
+     * @param server URL of the server that supports QUIC
+     * @param alternatePort to use for QUIC

[mmenke, 2014/09/09 14:53:35]

nit:  End comments with periods.

[mef, 2014/09/10 16:48:18]

Done.

+     */
+    public HttpUrlRequestFactoryConfig addQuicHint(String server,
+                                                   int alternatePort) {
+        try {
+            JSONArray quicHints = mConfig.optJSONArray(
+                    UrlRequestContextConfig.QUIC_HINTS);
+            if (quicHints == null) {
+                quicHints = new JSONArray();
+                mConfig.put(UrlRequestContextConfig.QUIC_HINTS, quicHints);
+            }
+
+            JSONObject hint = new JSONObject();
+            hint.put(UrlRequestContextConfig.QUIC_HINT_SERVER, server);
+            hint.put(UrlRequestContextConfig.QUIC_HINT_ALT_PORT, alternatePort);
+            quicHints.put(hint);
+        } catch (JSONException e) {
+            ;
+        }
+        return this;
+    }
+
+    /**
      * Get JSON string representation of the config.
      */
     public String toString() {