__FUNCTION__ cannot concatenate with constant strings in all compilers.

win8/test/open_with_dialog_controller.cc

 // Copyright (c) 2013 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 "win8/test/open_with_dialog_controller.h"
 
 #include <shlobj.h>
 
 #include "base/bind.h"
 #include "base/callback.h"
@@ skipping 149 matching lines @@
   // Ignore any future callbacks (such as the timeout) or calls to Orphan.
   weak_ptr_factory_.InvalidateWeakPtrs();
   callback_.Run(automation_result_, automation_choices_);
   delete this;
 }
 
 void OpenWithDialogController::Context::OnTimeout() {
   DCHECK(thread_checker_.CalledOnValidThread());
   // This is a LOG rather than a DLOG since it represents something that needs
   // to be investigated and fixed.
-  LOG(ERROR) << __FUNCTION__ " state: " << state_;
+  LOG(ERROR) << __FUNCTION__ << " state: " << state_;
 
   state_ = CONTEXT_FINISHED;
   NotifyClientAndDie();
 }
 
 void OpenWithDialogController::Context::OnInitialized(HRESULT result) {
   DCHECK(thread_checker_.CalledOnValidThread());
   DCHECK_EQ(state_, CONTEXT_INITIALIZED);
   if (FAILED(result)) {
     automation_result_ = result;
@@ skipping 102 matching lines @@
       base::Bind(&OpenWithDialogController::Begin, base::Unretained(this),
                  parent_window, protocol, program,
                  Bind(&OnMakeDefaultComplete, run_loop.QuitClosure(),
                       &result, choices)));
 
   run_loop.Run();
   return result;
 }
 
 }  // namespace win8