iwyu: Include stringprintf.h where appropriate, part 1.

chrome/renderer/extensions/user_script_slave.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 "chrome/renderer/extensions/user_script_slave.h"
 
 #include <map>
 
 #include "base/command_line.h"
 #include "base/logging.h"
@@ skipping 162 matching lines @@
 
   return true;
 }
 
 // static
 void UserScriptSlave::InsertInitExtensionCode(
     std::vector<WebScriptSource>* sources, const std::string& extension_id) {
   DCHECK(sources);
   bool incognito = ChromeRenderProcessObserver::is_incognito_process();
   sources->insert(sources->begin(), WebScriptSource(WebString::fromUTF8(
-      StringPrintf(kInitExtension, extension_id.c_str(),
-                   incognito ? "true" : "false"))));
+      base::StringPrintf(kInitExtension,
+                         extension_id.c_str(),
+                         incognito ? "true" : "false"))));
 }
 
 void UserScriptSlave::InjectScripts(WebFrame* frame,
                                     UserScript::RunLocation location) {
   GURL frame_url = GURL(frame->url());
   if (frame_url.is_empty())
     return;
 
   PerfTimer timer;
   int num_css = 0;
@@ skipping 74 matching lines @@
     if (num_scripts)
       UMA_HISTOGRAM_TIMES("Extensions.InjectEnd_Time", timer.Elapsed());
   } else if (location == UserScript::DOCUMENT_IDLE) {
     UMA_HISTOGRAM_COUNTS_100("Extensions.InjectIdle_ScriptCount", num_scripts);
     if (num_scripts)
       UMA_HISTOGRAM_TIMES("Extensions.InjectIdle_Time", timer.Elapsed());
   } else {
     NOTREACHED();
   }
 }