Update from https://crrev.com/316786

net/spdy/spdy_buffer.cc

Index: net/spdy/spdy_buffer.cc
diff --git a/net/spdy/spdy_buffer.cc b/net/spdy/spdy_buffer.cc
index f7cd3786e2b54695da71c67da8f6ea3b1d88ccc7..a1fd8c8c7bc04415f98b3b8c788c6b15b6048543 100644
--- a/net/spdy/spdy_buffer.cc
+++ b/net/spdy/spdy_buffer.cc
@@ -8,6 +8,7 @@
 
 #include "base/callback.h"
 #include "base/logging.h"
+#include "base/profiler/scoped_tracker.h"
 #include "net/base/io_buffer.h"
 #include "net/spdy/spdy_protocol.h"
 
@@ -88,6 +89,9 @@ void SpdyBuffer::AddConsumeCallback(const ConsumeCallback& consume_callback) {
 }
 
 void SpdyBuffer::Consume(size_t consume_size) {
+  // TODO(pkasting): Remove ScopedTracker below once crbug.com/457517 is fixed.
+  tracked_objects::ScopedTracker tracking_profile(
+      FROM_HERE_WITH_EXPLICIT_FUNCTION("457517 SpdyBuffer::Consume"));
   ConsumeHelper(consume_size, CONSUME);
 };