Removes MessageLoop::TYPE_XXX where possible

chrome/browser/spellchecker/spellcheck_host_metrics_unittest.cc

 // Copyright (c) 2012 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/spellchecker/spellcheck_host_metrics.h"
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop.h"
 #include "base/metrics/histogram_samples.h"
 #include "base/metrics/statistics_recorder.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/test/statistics_delta_reader.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 #if defined(OS_WIN)
 // For version specific disabled tests below (http://crbug.com/230534).
 #include "base/win/windows_version.h"
 #endif
 
 class SpellcheckHostMetricsTest : public testing::Test {
  public:
-  SpellcheckHostMetricsTest() : loop_(base::MessageLoop::TYPE_DEFAULT) {
+  SpellcheckHostMetricsTest() {
   }
 
   static void SetUpTestCase() {
     base::StatisticsRecorder::Initialize();
   }
 
   virtual void SetUp() OVERRIDE {
     metrics_.reset(new SpellCheckHostMetrics);
   }
 
@@ skipping 91 matching lines @@
 
   base::StatisticsDeltaReader statistics_delta_reader2;
 
   metrics()->RecordSpellingServiceStats(true);
 
   samples =
       statistics_delta_reader2.GetHistogramSamplesSinceCreation(kMetricName);
   EXPECT_EQ(0, samples->GetCount(0));
   EXPECT_EQ(1, samples->GetCount(1));
 }