base: Remove the string logging from CHECK().

remoting/host/security_key/fake_security_key_ipc_client.cc

 // Copyright 2016 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/host/security_key/fake_security_key_ipc_client.h"
 
 #include <memory>
 
 #include "base/callback.h"
 #include "base/macros.h"
@@ skipping 71 matching lines @@
 }
 
 bool FakeSecurityKeyIpcClient::OnMessageReceived(const IPC::Message& message) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(FakeSecurityKeyIpcClient, message)
     IPC_MESSAGE_HANDLER(ChromotingNetworkToRemoteSecurityKeyMsg_Response,
                         OnSecurityKeyResponse)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
 
-  CHECK(handled) << "Received unexpected IPC type: " << message.type();
+  // Received unexpected IPC type.
+  CHECK(handled);
   return handled;
 }
 
 void FakeSecurityKeyIpcClient::OnChannelConnected(int32_t peer_pid) {
   ipc_channel_connected_ = true;
   channel_event_callback_.Run();
 }
 
 void FakeSecurityKeyIpcClient::OnChannelError() {
   ipc_channel_connected_ = false;
   channel_event_callback_.Run();
 }
 
 void FakeSecurityKeyIpcClient::OnSecurityKeyResponse(
     const std::string& request_data) {
   last_message_received_ = request_data;
   channel_event_callback_.Run();
 }
 
 }  // namespace remoting