[Cronet] Pass metrics information from C++ BidirectionalStream to Java

components/cronet/android/java/src/org/chromium/net/impl/CronetUrlRequestContext.java

 // 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.
 
 package org.chromium.net.impl;
 
 import android.content.Context;
 import android.os.Build;
 import android.os.ConditionVariable;
 import android.os.Handler;
@@ skipping 192 matching lines @@
     }
 
     @Override
     public BidirectionalStream createBidirectionalStream(String url,
             BidirectionalStream.Callback callback, Executor executor, String httpMethod,
             List<Map.Entry<String, String>> requestHeaders,
             @BidirectionalStream.Builder.StreamPriority int priority,
             boolean delayRequestHeadersUntilFirstFlush, Collection<Object> requestAnnotations) {
         synchronized (mLock) {
             checkHaveAdapter();
+            boolean metricsCollectionEnabled = false;
+            synchronized (mFinishedListenerLock) {
+                metricsCollectionEnabled = !mFinishedListenerList.isEmpty();
+            }
             return new CronetBidirectionalStream(this, url, priority, callback, executor,
                     httpMethod, requestHeaders, delayRequestHeadersUntilFirstFlush,
-                    requestAnnotations);
+                    requestAnnotations, metricsCollectionEnabled);
         }
     }
 
     @Override
     public boolean isEnabled() {
         return Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH;
     }
 
     @Override
     public String getVersionString() {
@@ skipping 408 matching lines @@
     @NativeClassQualifiedName("CronetURLRequestContextAdapter")
     private native void nativeProvideRTTObservations(long nativePtr, boolean should);
 
     @NativeClassQualifiedName("CronetURLRequestContextAdapter")
     private native void nativeProvideThroughputObservations(long nativePtr, boolean should);
 
     public boolean isNetworkThread(Thread thread) {
         return thread == mNetworkThread;
     }
 }