[Cleanup] Remove StringPrintf from global namespace

content/app/content_main_runner.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 "content/public/app/content_main_runner.h"
 
 #include <stdlib.h>
 
 #include "base/allocator/allocator_extension.h"
 #include "base/at_exit.h"
@@ skipping 178 matching lines @@
 
   base::MachSendMessage child_message(kMessageId);
   if (!child_message.AddDescriptor(mach_task_self())) {
     LOG(ERROR) << "child AddDescriptor(mach_task_self()) failed.";
     return;
   }
 
   base::MachPortSender child_sender(mach_port_name.c_str());
   kern_return_t err = child_sender.SendMessage(child_message, kTimeoutMs);
   if (err != KERN_SUCCESS) {
-    LOG(ERROR) << StringPrintf("child SendMessage() failed: 0x%x %s", err,
-                               mach_error_string(err));
+    LOG(ERROR) <<
+        base::StringPrintf("child SendMessage() failed: 0x%x %s", err,
+                           mach_error_string(err));
   }
 }
 
 #endif  // defined(OS_WIN)
 
 #if defined(OS_POSIX) && !defined(OS_IOS)
 
 // Setup signal-handling state: resanitize most signals, ignore SIGPIPE.
 void SetupSignalHandlers() {
   // Sanitise our signal handling state. Signals that were ignored by our
@@ skipping 606 matching lines @@
 
   DISALLOW_COPY_AND_ASSIGN(ContentMainRunnerImpl);
 };
 
 // static
 ContentMainRunner* ContentMainRunner::Create() {
   return new ContentMainRunnerImpl();
 }
 
 }  // namespace content