Improve memory estimate of SpdySessionPool in net/ MemoryDumpProvider.

net/spdy/spdy_write_queue.cc

Index: net/spdy/spdy_write_queue.cc
diff --git a/net/spdy/spdy_write_queue.cc b/net/spdy/spdy_write_queue.cc
index 50df9440a777541ffcf4cbc66c45eb4f08243a02..db498f3af9c96f41e4ed127dedf45ce68a060004 100644
--- a/net/spdy/spdy_write_queue.cc
+++ b/net/spdy/spdy_write_queue.cc
@@ -9,6 +9,7 @@
 #include <vector>
 
 #include "base/logging.h"
+#include "net/spdy/platform/api/spdy_estimate_memory_usage.h"
 #include "net/spdy/spdy_buffer.h"
 #include "net/spdy/spdy_buffer_producer.h"
 #include "net/spdy/spdy_stream.h"
@@ -32,6 +33,10 @@ SpdyWriteQueue::PendingWrite::PendingWrite(PendingWrite&& other) = default;
 SpdyWriteQueue::PendingWrite& SpdyWriteQueue::PendingWrite::operator=(
     PendingWrite&& other) = default;
 
+size_t SpdyWriteQueue::PendingWrite::EstimateMemoryUsage() const {
+  return SpdyEstimateMemoryUsage(frame_producer);
+}
+
 SpdyWriteQueue::SpdyWriteQueue() : removing_writes_(false) {}
 
 SpdyWriteQueue::~SpdyWriteQueue() {
@@ -155,4 +160,8 @@ void SpdyWriteQueue::Clear() {
   removing_writes_ = false;
 }
 
+size_t SpdyWriteQueue::EstimateMemoryUsage() const {
+  return SpdyEstimateMemoryUsage(queue_);
+}
+
 }  // namespace net