Disable "using base::FilePath" on Linux since it now compiles.

chrome/installer/util/google_update_util.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/installer/util/google_update_util.h"
 
 #include <algorithm>
 #include <map>
 #include <utility>
 #include <vector>
@@ skipping 25 matching lines @@
 const int kEnvVariableUntrustedDataMaxLength = 4096;
 
 // Returns true if Google Update is present at the given level.
 bool IsGoogleUpdatePresent(bool system_install) {
   // Using the existence of version key in the registry to decide.
   return GoogleUpdateSettings::GetGoogleUpdateVersion(system_install).IsValid();
 }
 
 // Returns GoogleUpdateSetup.exe's executable path at specified level.
 // or an empty path if none is found.
-FilePath GetGoogleUpdateSetupExe(bool system_install) {
+base::FilePath GetGoogleUpdateSetupExe(bool system_install) {
   const HKEY root_key = system_install ? HKEY_LOCAL_MACHINE : HKEY_CURRENT_USER;
   RegKey update_key;
 
   if (update_key.Open(root_key, kRegPathGoogleUpdate, KEY_QUERY_VALUE) ==
           ERROR_SUCCESS) {
     string16 path_str;
     string16 version_str;
     if ((update_key.ReadValue(kRegPathField, &path_str) == ERROR_SUCCESS) &&
         (update_key.ReadValue(kRegGoogleUpdateVersion, &version_str) ==
              ERROR_SUCCESS)) {
@@ skipping 157 matching lines @@
     std::map<std::string, std::string>::const_iterator data_it(
         untrusted_data.find(key));
     if (data_it != untrusted_data.end())
       return data_it->second;
   }
 
   return std::string();
 }
 
 }  // namespace google_update