Split up quic_frames.{h,cc} into files for each frame type.

net/quic/core/frames/quic_stop_waiting_frame.h

Index: net/quic/core/frames/quic_stop_waiting_frame.h
diff --git a/net/quic/core/frames/quic_stop_waiting_frame.h b/net/quic/core/frames/quic_stop_waiting_frame.h
new file mode 100644
index 0000000000000000000000000000000000000000..fcbbb74a9997e3f8a55ec1e517ace63c10f2f20e
--- /dev/null
+++ b/net/quic/core/frames/quic_stop_waiting_frame.h
@@ -0,0 +1,28 @@
+// Copyright (c) 2016 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.
+
+#ifndef NET_QUIC_CORE_FRAMES_QUIC_STOP_WAITING_FRAME_H_
+#define NET_QUIC_CORE_FRAMES_QUIC_STOP_WAITING_FRAME_H_
+
+#include "net/base/net_export.h"
+#include "net/quic/core/quic_types.h"
+
+namespace net {
+
+struct NET_EXPORT_PRIVATE QuicStopWaitingFrame {
+  QuicStopWaitingFrame();
+  ~QuicStopWaitingFrame();
+
+  friend NET_EXPORT_PRIVATE std::ostream& operator<<(
+      std::ostream& os,
+      const QuicStopWaitingFrame& s);
+  // Path which this stop waiting frame belongs to.
+  QuicPathId path_id;
+  // The lowest packet we've sent which is unacked, and we expect an ack for.
+  QuicPacketNumber least_unacked;
+};
+
+}  // namespace net
+
+#endif  // NET_QUIC_CORE_FRAMES_QUIC_STOP_WAITING_FRAME_H_