Update from https://crrev.com/316786

net/spdy/spdy_stream.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.
 
 #include "net/spdy/spdy_stream.h"
 
 #include "base/bind.h"
 #include "base/compiler_specific.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
+#include "base/profiler/scoped_tracker.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/stringprintf.h"
 #include "base/values.h"
 #include "net/spdy/spdy_buffer_producer.h"
 #include "net/spdy/spdy_http_utils.h"
 #include "net/spdy/spdy_session.h"
 
 namespace net {
 
 namespace {
@@ skipping 500 matching lines @@
   metrics_.RecordBytes(length);
   recv_bytes_ += length;
   recv_last_byte_time_ = base::TimeTicks::Now();
 
   // May close |this|.
   delegate_->OnDataReceived(buffer.Pass());
 }
 
 void SpdyStream::OnFrameWriteComplete(SpdyFrameType frame_type,
                                       size_t frame_size) {
+  // TODO(pkasting): Remove ScopedTracker below once crbug.com/457517 is fixed.
+  tracked_objects::ScopedTracker tracking_profile(
+      FROM_HERE_WITH_EXPLICIT_FUNCTION(
+          "457517 SpdyStream::OnFrameWriteComplete"));
   DCHECK_NE(type_, SPDY_PUSH_STREAM);
 
   if (frame_size < session_->GetFrameMinimumSize() ||
       frame_size > session_->GetFrameMaximumSize()) {
     NOTREACHED();
     return;
   }
   CHECK(frame_type == SYN_STREAM ||
         frame_type == DATA) << frame_type;
 
@@ skipping 372 matching lines @@
       description = base::StringPrintf("Unknown state 0x%08X (%u)", state,
                                        state);
       break;
   }
   return description;
 }
 
 #undef STATE_CASE
 
 }  // namespace net