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 7ab4fa37d1fae7f487cf8246b85ec49684c34384..fa0ead92314860699c94acd5277f81ae966fdd9a 100644
--- a/net/spdy/buffered_spdy_framer.h
+++ b/net/spdy/buffered_spdy_framer.h
@@ -230,6 +230,9 @@ 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:
   SpdyFramer spdy_framer_;
   BufferedSpdyFramerVisitorInterface* visitor_;
@@ -258,6 +261,9 @@ 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_;