[Cleanup] Remove StringPrintf from global namespace

base/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.h"
 
 #include <errno.h>
 #include <sys/resource.h>
 
 #include "base/file_util.h"
@@ skipping 24 matching lines @@
   // Check for cgroups files. ChromeOS supports these by default. It creates
   // a cgroup mount in /sys/fs/cgroup and then configures two cpu task groups,
   // one contains at most a single foreground renderer and the other contains
   // all background renderers. This allows us to limit the impact of background
   // renderers on foreground ones to a greater level than simple renicing.
   bool enabled;
   base::FilePath foreground_file;
   base::FilePath background_file;
 
   CGroups() {
-    foreground_file = base::FilePath(StringPrintf(kControlPath, kForeground));
-    background_file = base::FilePath(StringPrintf(kControlPath, kBackground));
+    foreground_file =
+        base::FilePath(base::StringPrintf(kControlPath, kForeground));
+    background_file =
+        base::FilePath(base::StringPrintf(kControlPath, kBackground));
     file_util::FileSystemType foreground_type;
     file_util::FileSystemType background_type;
     enabled =
         file_util::GetFileSystemType(foreground_file, &foreground_type) &&
         file_util::GetFileSystemType(background_file, &background_type) &&
         foreground_type == file_util::FILE_SYSTEM_CGROUP &&
         background_type == file_util::FILE_SYSTEM_CGROUP;
   }
 };
 
@@ skipping 69 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