Log source_dependency in HTTP2_SESSION_SEND_HEADERS.

net/spdy/spdy_stream_test_util.cc

Index: net/spdy/spdy_stream_test_util.cc
diff --git a/net/spdy/spdy_stream_test_util.cc b/net/spdy/spdy_stream_test_util.cc
index a9c8e56b6793d85c8b89908afc4acbeaab7dd7a0..35c7f107ec5d2c87bc31b8f3fb7b7c9a03c8a4ef 100644
--- a/net/spdy/spdy_stream_test_util.cc
+++ b/net/spdy/spdy_stream_test_util.cc
@@ -40,6 +40,10 @@ void ClosingDelegate::OnClose(int status) {
   // The |stream_| may still be alive (if it is our delegate).
 }
 
+NetLogSource ClosingDelegate::source_dependency() const {
+  return NetLogSource();
+}
+
 StreamDelegateBase::StreamDelegateBase(
     const base::WeakPtr<SpdyStream>& stream)
     : stream_(stream),
@@ -79,6 +83,10 @@ void StreamDelegateBase::OnClose(int status) {
   callback_.callback().Run(status);
 }
 
+NetLogSource StreamDelegateBase::source_dependency() const {
+  return NetLogSource();
+}
+
 int StreamDelegateBase::WaitForClose() {
   int result = callback_.WaitForResult();
   EXPECT_TRUE(!stream_.get());