Log source_dependency in HTTP2_SESSION_SEND_HEADERS.

net/spdy/spdy_http_stream.h

Index: net/spdy/spdy_http_stream.h
diff --git a/net/spdy/spdy_http_stream.h b/net/spdy/spdy_http_stream.h
index 6e1c59750a8b24584a22d612dc426aa82450c5df..3605f9b102da6c0b632e760ac1d44783a4709c27 100644
--- a/net/spdy/spdy_http_stream.h
+++ b/net/spdy/spdy_http_stream.h
@@ -14,6 +14,7 @@
 #include "base/memory/weak_ptr.h"
 #include "net/base/completion_callback.h"
 #include "net/base/net_export.h"
+#include "net/log/net_log_source.h"
 #include "net/spdy/multiplexed_http_stream.h"
 #include "net/spdy/spdy_read_queue.h"
 #include "net/spdy/spdy_session.h"
@@ -33,7 +34,9 @@ class NET_EXPORT_PRIVATE SpdyHttpStream : public SpdyStream::Delegate,
  public:
   static const size_t kRequestBodyBufferSize;
   // |spdy_session| must not be NULL.
-  SpdyHttpStream(const base::WeakPtr<SpdySession>& spdy_session, bool direct);
+  SpdyHttpStream(const base::WeakPtr<SpdySession>& spdy_session,
+                 bool direct,
+                 NetLogSource source_dependency);
   ~SpdyHttpStream() override;
 
   SpdyStream* stream() { return stream_; }
@@ -83,6 +86,7 @@ class NET_EXPORT_PRIVATE SpdyHttpStream : public SpdyStream::Delegate,
   void OnDataSent() override;
   void OnTrailers(const SpdyHeaderBlock& trailers) override;
   void OnClose(int status) override;
+  NetLogSource source_dependency() const override;
 
  private:
   // Helper function used to initialize private members and to set delegate on
@@ -128,6 +132,7 @@ class NET_EXPORT_PRIVATE SpdyHttpStream : public SpdyStream::Delegate,
   const base::WeakPtr<SpdySession> spdy_session_;
   bool is_reused_;
   SpdyStreamRequest stream_request_;
+  const NetLogSource source_dependency_;
 
   // |stream_| is owned by SpdySession.
   // Before InitializeStream() is called, stream_ == nullptr.