Move EndsWith to base namespace.

tools/gn/ninja_target_writer.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/ninja_target_writer.h"
 
 #include <sstream>
 
 #include "base/files/file_util.h"
 #include "base/strings/string_util.h"
@@ skipping 224 matching lines @@
   return input_stamp_file;
 }
 
 void NinjaTargetWriter::WriteStampForTarget(
     const std::vector<OutputFile>& files,
     const std::vector<OutputFile>& order_only_deps) {
   const OutputFile& stamp_file = target_->dependency_output_file();
 
   // First validate that the target's dependency is a stamp file. Otherwise,
   // we shouldn't have gotten here!
-  CHECK(EndsWith(stamp_file.value(), ".stamp", false))
+  CHECK(base::EndsWith(stamp_file.value(), ".stamp", false))
       << "Output should end in \".stamp\" for stamp file output. Instead got: "
       << "\"" << stamp_file.value() << "\"";
 
   out_ << "build ";
   path_output_.WriteFile(out_, stamp_file);
 
   out_ << ": "
        << GetNinjaRulePrefixForToolchain(settings_)
        << Toolchain::ToolTypeToName(Toolchain::TYPE_STAMP);
   path_output_.WriteFiles(out_, files);
 
   if (!order_only_deps.empty()) {
     out_ << " ||";
     path_output_.WriteFiles(out_, order_only_deps);
   }
   out_ << std::endl;
 }