Move TrimWhitespace to the base namespace.

tools/gn/setup.cc

 // Copyright (c) 2013 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 "tools/gn/setup.h"
 
 #include <stdlib.h>
 
 #include <algorithm>
 
@@ skipping 301 matching lines @@
   return true;
 }
 
 void Setup::FillPythonPath() {
 #if defined(OS_WIN)
   // Find Python on the path so we can use the absolute path in the build.
   const base::char16 kGetPython[] =
       L"cmd.exe /c python -c \"import sys; print sys.executable\"";
   std::string python_path;
   if (base::GetAppOutput(kGetPython, &python_path)) {
-    TrimWhitespaceASCII(python_path, TRIM_ALL, &python_path);
+    base::TrimWhitespaceASCII(python_path, base::TRIM_ALL, &python_path);
     if (scheduler_.verbose_logging())
       scheduler_.Log("Found python", python_path);
   } else {
     scheduler_.Log("WARNING", "Could not find python on path, using "
         "just \"python.exe\"");
     python_path = "python.exe";
   }
   build_settings_.set_python_path(
       base::FilePath(base::UTF8ToUTF16(python_path)));
 #else
@@ skipping 100 matching lines @@
 }
 
 void DependentSetup::RunPreMessageLoop() {
   CommonSetup::RunPreMessageLoop();
 }
 
 bool DependentSetup::RunPostMessageLoop() {
   return CommonSetup::RunPostMessageLoop();
 }