Add SpdyFramerDebugVisitorInterface for later usage in stats collecting

net/spdy/spdy_framer.cc

 // Copyright (c) 2012 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.
 
 // TODO(rtenhove) clean up frame buffer size calculations so that we aren't
 // constantly adding and subtracting header sizes; this is ugly and error-
 // prone.
 
 #include "net/spdy/spdy_framer.h"
 
@@ skipping 105 matching lines @@
     : state_(SPDY_RESET),
       previous_state_(SPDY_RESET),
       error_code_(SPDY_NO_ERROR),
       remaining_data_(0),
       remaining_control_payload_(0),
       remaining_control_header_(0),
       current_frame_buffer_(new char[kControlFrameBufferSize]),
       current_frame_len_(0),
       enable_compression_(true),
       visitor_(NULL),
+      debug_visitor_(NULL),
       display_protocol_("SPDY"),
       spdy_version_(version),
       syn_frame_processed_(false),
       probable_http_response_(false) {
   DCHECK_GE(kMaxSpdyVersion, version);
   DCHECK_LE(kMinSpdyVersion, version);
 }
 
 SpdyFramer::~SpdyFramer() {
   if (header_compressor_.get()) {
@@ skipping 1533 matching lines @@
       header_length + compressed_size - SpdyFrame::kHeaderSize);
 
   pre_compress_bytes.Add(payload_length);
   post_compress_bytes.Add(new_frame->length());
 
   compressed_frames.Increment();
 
   if (visitor_)
     visitor_->OnControlFrameCompressed(frame, *new_frame);
 
+  if (debug_visitor_ != NULL) {
+    debug_visitor_->OnCompressedHeaderBlock(payload_length, compressed_size);
+  }
+
   return new_frame.release();
 }
 
 // Incrementally decompress the control frame's header block, feeding the
 // result to the visitor in chunks. Continue this until the visitor
 // indicates that it cannot process any more data, or (more commonly) we
 // run out of data to deliver.
 bool SpdyFramer::IncrementallyDecompressControlFrameHeaderData(
     const SpdyControlFrame* control_frame,
     const char* data,
@@ skipping 183 matching lines @@
     }
   }
   return stream_id;
 }
 
 void SpdyFramer::set_enable_compression(bool value) {
   enable_compression_ = value;
 }
 
 }  // namespace net