Expose RTT and throughput estimates from Cronet

components/cronet/android/api/src/org/chromium/net/JavaCronetEngine.java

Index: components/cronet/android/api/src/org/chromium/net/JavaCronetEngine.java
diff --git a/components/cronet/android/api/src/org/chromium/net/JavaCronetEngine.java b/components/cronet/android/api/src/org/chromium/net/JavaCronetEngine.java
index ab19536e7fc18124d751af521fc86d31f468d7fb..71b2015b6bf817d86df499dc9035d447dbfcb1a8 100644
--- a/components/cronet/android/api/src/org/chromium/net/JavaCronetEngine.java
+++ b/components/cronet/android/api/src/org/chromium/net/JavaCronetEngine.java
@@ -113,6 +113,21 @@ final class JavaCronetEngine extends CronetEngine {
     }
 
     @Override
+    public int getHttpRttMs() {
+        return RttThroughputValues.INVALID_RTT_THROUGHPUT;
+    }
+
+    @Override
+    public int getTransportRttMs() {
+        return RttThroughputValues.INVALID_RTT_THROUGHPUT;
+    }
+
+    @Override
+    public int getDownstreamThroughputKbps() {
+        return RttThroughputValues.INVALID_RTT_THROUGHPUT;
+    }
+
+    @Override
     public void configureNetworkQualityEstimatorForTesting(
             boolean useLocalHostRequests, boolean useSmallerResponses) {}