Improve memory estimate of SpdySessionPool in net/ MemoryDumpProvider.

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 28e807def4dd1f389a495e6e3edff171d104579d..b111303f893dd39071d3f65953465804dbdde9ec 100644
--- a/net/spdy/spdy_buffer.cc
+++ b/net/spdy/spdy_buffer.cc
@@ -10,6 +10,7 @@
 #include "base/callback.h"
 #include "base/logging.h"
 #include "base/macros.h"
+#include "base/trace_event/memory_usage_estimator.h"
 #include "net/base/io_buffer.h"
 #include "net/spdy/spdy_protocol.h"
 
@@ -97,6 +98,10 @@ IOBuffer* SpdyBuffer::GetIOBufferForRemainingData() {
   return new SharedFrameIOBuffer(shared_frame_, offset_);
 }
 
+size_t SpdyBuffer::EstimateMemoryUsage() const {
+  return shared_frame_->data->size();

[DmitrySkiba, 2017/02/02 18:16:27]

I think that SpdySerializedFrame should implement EMU itself, because it knows
whether it owns the buffer.

Also please add TODO about estimating consume_callbacks_ once base::Callback
supports EMU.

[xunjieli, 2017/02/03 22:25:09]

Done.

+}
+
 void SpdyBuffer::ConsumeHelper(size_t consume_size,
                                ConsumeSource consume_source) {
   DCHECK_GE(consume_size, 1u);