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

base/path_service_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 "base/path_service.h"
 
 #include "base/basictypes.h"
 #include "base/file_util.h"
 #include "base/file_path.h"
-#include "base/logging.h"
 #if defined(OS_WIN)
 #include "base/win_util.h"
 #endif
 #include "testing/gtest/include/gtest/gtest.h"
 #include "testing/gtest/include/gtest/gtest-spi.h"
 #include "testing/platform_test.h"
 
 namespace {
 
 // Returns true if PathService::Get returns true and sets the path parameter
@@ skipping 33 matching lines @@
         win_util::GetWinVersion() < win_util::WINVERSION_VISTA) {
       // DIR_LOCAL_APP_DATA_LOW is not supported prior Vista and is expected to
       // fail.
       EXPECT_TRUE(ReturnsInvalidPath(key)) << key;
     } else {
       EXPECT_TRUE(ReturnsValidPath(key)) << key;
     }
   }
 #endif
 }