Move GetFileSize, NormalizeFilePath to base namespace

chrome/browser/chromeos/policy/user_cloud_policy_store_chromeos.cc

Index: chrome/browser/chromeos/policy/user_cloud_policy_store_chromeos.cc
diff --git a/chrome/browser/chromeos/policy/user_cloud_policy_store_chromeos.cc b/chrome/browser/chromeos/policy/user_cloud_policy_store_chromeos.cc
index 323baecca4dcb55b9781ac81bac2e404c437cf9c..cf9eeb3cdca92c34a70219ebfa4c89af4942ba25 100644
--- a/chrome/browser/chromeos/policy/user_cloud_policy_store_chromeos.cc
+++ b/chrome/browser/chromeos/policy/user_cloud_policy_store_chromeos.cc
@@ -499,7 +499,7 @@ void UserCloudPolicyStoreChromeOS::LoadPolicyKey(const base::FilePath& path,
   }
 
   int64 size;
-  if (!file_util::GetFileSize(path, &size)) {
+  if (!base::GetFileSize(path, &size)) {
     LOG(ERROR) << "Could not get size of " << path.value();
   } else if (size == 0 || size > kKeySizeLimit) {
     LOG(ERROR) << "Key at " << path.value() << " has bad size " << size;