[Cleanup] Remove StringPrintf from global namespace

ui/aura/root_window_host_linux.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 "ui/aura/root_window_host_linux.h"
 
 #include <strings.h>
 #include <X11/cursorfont.h>
 #include <X11/extensions/Xfixes.h>
 #include <X11/extensions/XInput2.h>
@@ skipping 311 matching lines @@
                   atom_cache_.GetAtom("_NET_WM_PID"),
                   XA_CARDINAL,
                   32,
                   PropModeReplace,
                   reinterpret_cast<unsigned char*>(&pid), 1);
 
   // crbug.com/120229 - set the window title so gtalk can find the primary root
   // window to broadcast.
   // TODO(jhorwich) Remove this once Chrome supports window-based broadcasting.
   static int root_window_number = 0;
-  std::string name = StringPrintf("aura_root_%d", root_window_number++);
+  std::string name = base::StringPrintf("aura_root_%d", root_window_number++);
   XStoreName(xdisplay_, xwindow_, name.c_str());
   XRRSelectInput(xdisplay_, x_root_window_,
                  RRScreenChangeNotifyMask | RROutputChangeNotifyMask);
   Env::GetInstance()->AddObserver(this);
 }
 
 RootWindowHostLinux::~RootWindowHostLinux() {
   Env::GetInstance()->RemoveObserver(this);
   base::MessagePumpAuraX11::Current()->RemoveDispatcherForRootWindow(this);
   base::MessagePumpAuraX11::Current()->RemoveDispatcherForWindow(xwindow_);
@@ skipping 706 matching lines @@
   return new RootWindowHostLinux(bounds);
 }
 
 // static
 gfx::Size RootWindowHost::GetNativeScreenSize() {
   ::Display* xdisplay = base::MessagePumpAuraX11::GetDefaultXDisplay();
   return gfx::Size(DisplayWidth(xdisplay, 0), DisplayHeight(xdisplay, 0));
 }
 
 }  // namespace aura