Improve memory estimate of SpdySessionPool in net/ MemoryDumpProvider.

net/spdy/buffered_spdy_framer.h

Index: net/spdy/buffered_spdy_framer.h
diff --git a/net/spdy/buffered_spdy_framer.h b/net/spdy/buffered_spdy_framer.h
index ffd03a126e9b09f75359a2eec664e0f888ffd3af..e492990342cf062a78fdc4a0c6b85d099e41d14c 100644
--- a/net/spdy/buffered_spdy_framer.h
+++ b/net/spdy/buffered_spdy_framer.h
@@ -235,6 +235,9 @@ class NET_EXPORT_PRIVATE BufferedSpdyFramer
 
   int frames_received() const { return frames_received_; }
 
+  // Returns the estimate of dynamically allocated memory in bytes.
+  size_t EstimateMemoryUsage() const;
+
  private:
   void InitHeaderStreaming(SpdyStreamId stream_id);
 
@@ -269,6 +272,9 @@ class NET_EXPORT_PRIVATE BufferedSpdyFramer
     SpdyStreamId last_accepted_stream_id;
     SpdyErrorCode error_code;
     std::string debug_data;
+
+    // Returns the estimate of dynamically allocated memory in bytes.
+    size_t EstimateMemoryUsage() const;
   };
   std::unique_ptr<GoAwayFields> goaway_fields_;