QUIC - instrumentation for testing null QuicSpdyStream.

net/quic/quic_spdy_stream.h

Index: net/quic/quic_spdy_stream.h
diff --git a/net/quic/quic_spdy_stream.h b/net/quic/quic_spdy_stream.h
index d47d9d834cfeee91aaef4ca028070f9e8d0f46b7..c78db875705b6ee6bcf6d3992655ecac7f994fa7 100644
--- a/net/quic/quic_spdy_stream.h
+++ b/net/quic/quic_spdy_stream.h
@@ -15,6 +15,15 @@
 #include <list>
 #include <string>
 
+// TODO(rtenneti): Temporary while investigating crbug.com/585591.
+//                 Note base::Debug::StackTrace() is not supported in NACL
+//                 builds so conditionally disabled it there.
+#include "build/build_config.h"
+#ifndef OS_NACL
+#define TEMP_INSTRUMENTATION_585591
+#include "base/debug/stack_trace.h"
+#endif
+
 #include "base/macros.h"
 #include "base/strings/string_piece.h"
 #include "net/base/iovec.h"
@@ -151,6 +160,10 @@ class NET_EXPORT_PRIVATE QuicSpdyStream : public ReliableQuicStream {
   // written to the server.
   void SetPriority(SpdyPriority priority);
 
+  // TODO(rtenneti): Temporary until crbug.com/585591 is solved.
+  void CrashIfInvalid() const;
+  void set_read_is_called(bool value) { read_is_called_ = value; }
+
  protected:
   // Called by OnStreamHeadersComplete depending on which type (initial or
   // trailing) headers are expected next.
@@ -167,6 +180,12 @@ class NET_EXPORT_PRIVATE QuicSpdyStream : public ReliableQuicStream {
   friend class test::ReliableQuicStreamPeer;
   friend class QuicStreamUtils;
 
+  // TODO(rtenneti): Temporary until crbug.com/585591 is solved.
+  enum Liveness {
+    ALIVE = 0xCA11AB13,
+    DEAD = 0xDEADBEEF,
+  };
+
   // Returns true if trailers have been fully read and consumed.
   bool FinishedReadingTrailers() const;
 
@@ -187,6 +206,15 @@ class NET_EXPORT_PRIVATE QuicSpdyStream : public ReliableQuicStream {
   // via ProcessData or Readv.
   std::string decompressed_trailers_;
 
+  // TODO(rtenneti): Temporary until crbug.com/585591 is solved.
+  Liveness liveness_ = ALIVE;
+  bool read_is_called_ = false;
+
+// TODO(rtenneti): Temporary while investigating crbug.com/585591.
+#ifdef TEMP_INSTRUMENTATION_585591
+  base::debug::StackTrace stack_trace_;
+#endif
+
   DISALLOW_COPY_AND_ASSIGN(QuicSpdyStream);
 };