Remove logging.h from cc files that don't use it.

base/command_line_unittest.cc

 // Copyright (c) 2006-2008 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 <string>
 #include <vector>
 
 #include "base/command_line.h"
 #include "base/basictypes.h"
-#include "base/logging.h"
 #include "base/string_util.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 TEST(CommandLineTest, CommandLineConstructor) {
 #if defined(OS_WIN)
   CommandLine cl(L"");
   cl.ParseFromString(L"program --foo= -bAr  /Spaetzel=pierogi /Baz flim "
                      L"--other-switches=\"--dog=canine --cat=feline\" "
                      L"-spaetzle=Crepe   -=loosevalue  flan "
                      L"--input-translation=\"45\"--output-rotation "
@@ skipping 99 matching lines @@
   cl.AppendSwitchWithValue(switch4, value4);
 
   EXPECT_TRUE(cl.HasSwitch(switch1));
   EXPECT_TRUE(cl.HasSwitch(switch2));
   EXPECT_EQ(value, cl.GetSwitchValue(switch2));
   EXPECT_TRUE(cl.HasSwitch(switch3));
   EXPECT_EQ(value3, cl.GetSwitchValue(switch3));
   EXPECT_TRUE(cl.HasSwitch(switch4));
   EXPECT_EQ(value4, cl.GetSwitchValue(switch4));
 }