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

net/quic/core/frames/quic_blocked_frame.h

Index: net/quic/core/frames/quic_blocked_frame.h
diff --git a/net/quic/core/frames/quic_blocked_frame.h b/net/quic/core/frames/quic_blocked_frame.h
new file mode 100644
index 0000000000000000000000000000000000000000..5a42642d2d890e0a0bd5e482000e56eeca67c79b
--- /dev/null
+++ b/net/quic/core/frames/quic_blocked_frame.h
@@ -0,0 +1,31 @@
+// 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_BLOCKED_FRAME_H_
+#define NET_QUIC_CORE_FRAMES_QUIC_BLOCKED_FRAME_H_
+
+#include "net/base/net_export.h"
+#include "net/quic/core/quic_types.h"
+
+namespace net {
+
+// The BLOCKED frame is used to indicate to the remote endpoint that this
+// endpoint believes itself to be flow-control blocked but otherwise ready to
+// send data. The BLOCKED frame is purely advisory and optional.
+// Based on SPDY's BLOCKED frame (undocumented as of 2014-01-28).
+struct NET_EXPORT_PRIVATE QuicBlockedFrame {
+  QuicBlockedFrame() {}
+  explicit QuicBlockedFrame(QuicStreamId stream_id);
+
+  friend NET_EXPORT_PRIVATE std::ostream& operator<<(std::ostream& os,
+                                                     const QuicBlockedFrame& b);
+
+  // The stream this frame applies to.  0 is a special case meaning the overall
+  // connection rather than a specific stream.
+  QuicStreamId stream_id;
+};
+
+}  // namespace net
+
+#endif  // NET_QUIC_CORE_FRAMES_QUIC_BLOCKED_FRAME_H_