Log compressed size of HTTP/2 requests.

net/spdy/spdy_no_op_visitor.h

Index: net/spdy/spdy_no_op_visitor.h
diff --git a/net/spdy/spdy_no_op_visitor.h b/net/spdy/spdy_no_op_visitor.h
index e2cba101ad6cc1f031b3b928e65a90c87e41c8b2..5a1bdfa3445fb57a1427ea9403b80fc45dc11dd4 100644
--- a/net/spdy/spdy_no_op_visitor.h
+++ b/net/spdy/spdy_no_op_visitor.h
@@ -87,6 +87,8 @@ class SpdyNoOpVisitor : public SpdyFramerVisitorInterface,
   void OnHeaderBlockStart() override {}
   void OnHeader(base::StringPiece key, base::StringPiece value) override {}
   void OnHeaderBlockEnd(size_t uncompressed_header_bytes) override {}
+  void OnHeaderBlockEnd(size_t /* uncompressed_header_bytes */,
+                        size_t /* compressed_header_bytes */) override {}
 };
 
 }  // namespace test