[Cronet] Make delaying sending request headers explicit in bidirectional stream

components/cronet/android/java/src/org/chromium/net/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;
 
 import android.content.Context;
 import android.os.Build;
 import android.os.ConditionVariable;
 import android.os.Handler;
@@ skipping 131 matching lines @@
                 }
             }
             return new CronetUrlRequest(this, url, priority, callback, executor, requestAnnotations,
                     metricsCollectionEnabled, disableCache, disableConnectionMigration);
         }
     }
 
     @Override
     BidirectionalStream createBidirectionalStream(String url, BidirectionalStream.Callback callback,
             Executor executor, String httpMethod, List<Map.Entry<String, String>> requestHeaders,
-            @BidirectionalStream.Builder.StreamPriority int priority, boolean disableAutoFlush) {
+            @BidirectionalStream.Builder.StreamPriority int priority, boolean disableAutoFlush,
+            boolean delayHeadersUntilNextWrite) {

[mef, 2016/06/01 21:33:21]

nit: maybe delayHeadersUntilFirstFlush? In any case, name must be consistent
with CronetEngine.

[xunjieli, 2016/06/01 22:27:16]

Done.

         synchronized (mLock) {
             checkHaveAdapter();
             return new CronetBidirectionalStream(this, url, priority, callback, executor,
-                    httpMethod, requestHeaders, disableAutoFlush);
+                    httpMethod, requestHeaders, disableAutoFlush, delayHeadersUntilNextWrite);
         }
     }
 
     @Override
     public boolean isEnabled() {
         return Build.VERSION.SDK_INT >= 14;
     }
 
     @Override
     public String getVersionString() {
@@ skipping 339 matching lines @@
     @NativeClassQualifiedName("CronetURLRequestContextAdapter")
     private native void nativeEnableNetworkQualityEstimator(
             long nativePtr, boolean useLocalHostRequests, boolean useSmallerResponses);
 
     @NativeClassQualifiedName("CronetURLRequestContextAdapter")
     private native void nativeProvideRTTObservations(long nativePtr, boolean should);
 
     @NativeClassQualifiedName("CronetURLRequestContextAdapter")
     private native void nativeProvideThroughputObservations(long nativePtr, boolean should);
 }