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

remoting/signaling/xmpp_signal_strategy_unittest.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "remoting/signaling/xmpp_signal_strategy.h"
 
 #include "base/base64.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "net/socket/socket_test_util.h"
@@ skipping 11 matching lines @@
     return net::MockRead(net::ASYNC, net::ERR_IO_PENDING);
   }
 
   net::MockWriteResult OnWrite(const std::string& data) override {
     written_data_.append(data);
     return net::MockWriteResult(net::SYNCHRONOUS, data.size());
   }
 
   void Reset() override {}
 
+  bool AllReadDataConsumed() const override {
+    return true;
+  }
+
+  bool AllWriteDataConsumed() const override {
+    return true;
+  }
+
   void ReceiveData(const std::string& text) {
     socket()->OnReadComplete(
         net::MockRead(net::ASYNC, text.data(), text.size()));
   }
 
   void Close() {
     ReceiveData(std::string());
   }
 
   void SimulateNetworkError() {
@@ skipping 217 matching lines @@
 
   // Can't send messages anymore.
   EXPECT_FALSE(signal_strategy_->SendStanza(make_scoped_ptr(
       new buzz::XmlElement(buzz::QName(std::string(), "hello")))));
 
   // Try connecting again.
   Connect(true);
 }
 
 }  // namespace remoting