[Cleanup] Remove StringPrintf from global namespace

chrome/browser/devtools/devtools_window.cc

Index: chrome/browser/devtools/devtools_window.cc
diff --git a/chrome/browser/devtools/devtools_window.cc b/chrome/browser/devtools/devtools_window.cc
index e95c54b9b93de04800fe0dce73d59d80c01f60a5..976148c909daa613278693f32137591b14a52cd8 100644
--- a/chrome/browser/devtools/devtools_window.cc
+++ b/chrome/browser/devtools/devtools_window.cc
@@ -611,7 +611,7 @@ void DevToolsWindow::DoAction() {
 std::string SkColorToRGBAString(SkColor color) {
   // We convert the alpha using DoubleToString because StringPrintf will use
   // locale specific formatters (e.g., use , instead of . in German).
-  return StringPrintf("rgba(%d,%d,%d,%s)", SkColorGetR(color),
+  return base::StringPrintf("rgba(%d,%d,%d,%s)", SkColorGetR(color),
       SkColorGetG(color), SkColorGetB(color),
       base::DoubleToString(SkColorGetA(color) / 255.0).c_str());
 }
@@ -632,7 +632,7 @@ GURL DevToolsWindow::GetDevToolsUrl(Profile* profile,
   bool experiments_enabled =
       command_line.HasSwitch(switches::kEnableDevToolsExperiments);
 
-  std::string url_string = StringPrintf("%sdevtools.html?"
+  std::string url_string = base::StringPrintf("%sdevtools.html?"
       "dockSide=%s&toolbarColor=%s&textColor=%s%s%s",
       chrome::kChromeUIDevToolsURL,
       SideToString(dock_side).c_str(),
@@ -651,7 +651,7 @@ void DevToolsWindow::UpdateTheme() {
       tp->GetColor(ThemeProperties::COLOR_TOOLBAR);
   SkColor color_tab_text =
       tp->GetColor(ThemeProperties::COLOR_BOOKMARK_TEXT);
-  std::string command = StringPrintf(
+  std::string command = base::StringPrintf(
       "InspectorFrontendAPI.setToolbarColors(\"%s\", \"%s\")",
       SkColorToRGBAString(color_toolbar).c_str(),
       SkColorToRGBAString(color_tab_text).c_str());