Don't use base::MessageLoop::{Quit,QuitClosure} in chrome/

chrome/browser/extensions/error_console/error_console_browsertest.cc

 // Copyright 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 "chrome/browser/extensions/error_console/error_console.h"
 
 #include "base/files/file_path.h"
 #include "base/prefs/pref_service.h"
 #include "base/strings/string16.h"
 #include "base/strings/stringprintf.h"
@@ skipping 140 matching lines @@
     virtual ~ErrorObserver() {
       if (error_console_)
         error_console_->RemoveObserver(this);
     }
 
     // ErrorConsole::Observer implementation.
     void OnErrorAdded(const ExtensionError* error) override {
       ++errors_observed_;
       if (errors_observed_ >= errors_expected_) {
         if (waiting_)
-          base::MessageLoopForUI::current()->Quit();
+          base::MessageLoopForUI::current()->QuitWhenIdle();
       }
     }
 
     void OnErrorConsoleDestroyed() override { error_console_ = NULL; }
 
     // Spin until the appropriate number of errors have been observed.
     void WaitForErrors() {
       if (errors_observed_ < errors_expected_) {
         waiting_ = true;
         content::RunMessageLoop();
@@ skipping 408 matching lines @@
 
   const StackTrace& stack_trace = GetStackTraceFromError(errors[0]);
   ASSERT_EQ(1u, stack_trace.size());
   CheckStackFrame(stack_trace[0],
                   script_url,
                   kAnonymousFunction,
                   12u, 20u);
 }
 
 }  // namespace extensions