Change window_update frame's byte_offset to max_data to incorporate IETF spec.

https://tools.ietf.org/html/draft-ietf-quic-transport-24#section-19.10

gfe-relnote: name change only. Not protected.
PiperOrigin-RevId: 281838511
Change-Id: I716cfd6856d8c9dd9981040f68bc0567feaedaee
diff --git a/quic/core/quic_ietf_framer_test.cc b/quic/core/quic_ietf_framer_test.cc
index 8557a35..725eb68 100644
--- a/quic/core/quic_ietf_framer_test.cc
+++ b/quic/core/quic_ietf_framer_test.cc
@@ -1224,8 +1224,8 @@
         QuicFramerPeer::ProcessMaxDataFrame(&framer_, &reader, &receive_frame));
 
     // Now check that the received data equals the sent data.
-    EXPECT_EQ(transmit_frame.byte_offset, window_size);
-    EXPECT_EQ(transmit_frame.byte_offset, receive_frame.byte_offset);
+    EXPECT_EQ(transmit_frame.max_data, window_size);
+    EXPECT_EQ(transmit_frame.max_data, receive_frame.max_data);
     EXPECT_EQ(QuicUtils::GetInvalidStreamId(framer_.transport_version()),
               receive_frame.stream_id);
   }
@@ -1266,8 +1266,8 @@
                                                             &receive_frame));
 
       // Now check that received data and sent data are equal.
-      EXPECT_EQ(transmit_frame.byte_offset, window_size);
-      EXPECT_EQ(transmit_frame.byte_offset, receive_frame.byte_offset);
+      EXPECT_EQ(transmit_frame.max_data, window_size);
+      EXPECT_EQ(transmit_frame.max_data, receive_frame.max_data);
       EXPECT_EQ(stream_id, receive_frame.stream_id);
       EXPECT_EQ(transmit_frame.stream_id, receive_frame.stream_id);
     }