Initial implementation of CronetBidirectionalStream.

components/cronet.gypi

Index: components/cronet.gypi
diff --git a/components/cronet.gypi b/components/cronet.gypi
index b45aeda7c4de0b1afe2c2ae49d3532cdd4435215..3815932562fa371d9ad2461b83be8f3140c75d79 100644
--- a/components/cronet.gypi
+++ b/components/cronet.gypi
@@ -3,6 +3,9 @@
 # found in the LICENSE file.
 
 {
+  'variables': {
+    'enable_bidirectional_stream%': 0,
+  },
   'conditions': [
     ['OS=="android"', {
       'targets': [
@@ -10,6 +13,7 @@
           'target_name': 'cronet_jni_headers',
           'type': 'none',
           'sources': [
+            'cronet/android/java/src/org/chromium/net/CronetBidirectionalStream.java',
             'cronet/android/java/src/org/chromium/net/CronetLibraryLoader.java',
             'cronet/android/java/src/org/chromium/net/CronetUploadDataStream.java',
             'cronet/android/java/src/org/chromium/net/CronetUrlRequest.java',
@@ -193,6 +197,17 @@
           'includes': [ 'cronet/cronet_static.gypi' ],
         },
         {
+          # GN version: //cronet:features
+          'target_name': 'cronet_features',
+          'includes': [ '../build/buildflag_header.gypi' ],
+          'variables': {
+             'buildflag_header_path': 'components/cronet/cronet_features.h',
+             'buildflag_flags': [
+               'ENABLE_BIDIRECTIONAL_STREAM=<(enable_bidirectional_stream)',
+            ],
+          },
+        },
+        {
           'target_name': 'libcronet',
           'type': 'shared_library',
           'sources': [
@@ -242,6 +257,7 @@
               '**/ChromiumUrlRequestError.java',
               '**/ChromiumUrlRequestFactory.java',
               '**/ChromiumUrlRequestPriority.java',
+              '**/CronetBidirectionalStream.java',
               '**/CronetLibraryLoader.java',
               '**/CronetUploadDataStream.java',
               '**/CronetUrlRequest.java',
@@ -419,6 +435,16 @@
             'is_test_apk': 1,
             'run_findbugs': 1,
           },
+          'conditions': [
+            ['enable_bidirectional_stream==0', {
+              'variables' : {
+                'jar_excluded_classes': [
+                  '**/BidirectionalStreamTest*',
+                  '**/TestBidirectionalStreamCallback*',
+                ],
+              },
+            },],
+          ],
           'includes': [ '../build/java_apk.gypi' ],
         },
         {