Move ReadFileToString to the base namespace.

base/process/process_linux.cc

 // Copyright (c) 2011 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/process/process.h"
 
 #include <errno.h>
 #include <sys/resource.h>
 
 #include "base/file_util.h"
@@ skipping 52 matching lines @@
 }
 
 namespace base {
 
 bool Process::IsProcessBackgrounded() const {
   DCHECK(process_);
 
 #if defined(OS_CHROMEOS)
   if (cgroups.Get().enabled) {
     std::string proc;
-    if (file_util::ReadFileToString(
-        base::FilePath(StringPrintf(kProcPath, process_)),
-        &proc)) {
+    if (base::ReadFileToString(
+            base::FilePath(StringPrintf(kProcPath, process_)),
+            &proc)) {
       std::vector<std::string> proc_parts;
       base::SplitString(proc, ':', &proc_parts);
       DCHECK(proc_parts.size() == 3);
       bool ret = proc_parts[2] == std::string(kBackground);
       return ret;
     } else {
       return false;
     }
   }
 #endif
@@ skipping 42 matching lines @@
   if (cgroups.Get().enabled)
     return true;
 #endif
 
   static LazyInstance<CheckForNicePermission> check_for_nice_permission =
       LAZY_INSTANCE_INITIALIZER;
   return check_for_nice_permission.Get().can_reraise_priority;
 }
 
 }  // namespace base