Reduce header dependencies in base/

base/file_version_info_mac.mm

 // 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/file_version_info.h"
 
 #import <Cocoa/Cocoa.h>
 
+#include "base/file_path.h"
 #include "base/logging.h"
 #include "base/string_util.h"
 
 FileVersionInfo::FileVersionInfo(NSBundle *bundle) : bundle_(bundle) {
   [bundle_ retain];
 }
 
 FileVersionInfo::~FileVersionInfo() {
   [bundle_ release];
 }
@@ skipping 107 matching lines @@
   }
   return false;
 }
 
 std::wstring FileVersionInfo::GetStringValue(const wchar_t* name) {
   std::wstring str;
   if (GetValue(name, &str))
     return str;
   return L"";
 }