Revert of Revert some other possible suspects of a 0.43% size increase of setup.exe: https://build.chromium.o…

remoting/base/buffered_socket_writer_unittest.cc

Index: remoting/base/buffered_socket_writer_unittest.cc
diff --git a/remoting/base/buffered_socket_writer_unittest.cc b/remoting/base/buffered_socket_writer_unittest.cc
index 0c74044726555a39a1962c100a0daa02916f3511..07bb2ece17d6b290005da58b79aadc6a83d07f79 100644
--- a/remoting/base/buffered_socket_writer_unittest.cc
+++ b/remoting/base/buffered_socket_writer_unittest.cc
@@ -43,6 +43,14 @@
     written_data_.append(data, 0, size);
     return net::MockWriteResult(async_write_ ? net::ASYNC : net::SYNCHRONOUS,
                                 size);
+  }
+
+  bool AllReadDataConsumed() const override {
+    return true;
+  }
+
+  bool AllWriteDataConsumed() const override {
+    return true;
   }
 
   void Reset() override {}