Cleanup: Replace base::ASCIIToWide with base::ASCIIToUTF16.

tools/imagediff/image_diff.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.
 
 // This file input format is based loosely on
 // Tools/DumpRenderTree/ImageDiff.m
 
 // The exact format of this tool's output to stdout is important, to match
 // what the run-webkit-tests script expects.
 
@@ skipping 379 matching lines @@
     return kStatusError;
 
   return kStatusDifferent;
 }
 
 // It isn't strictly correct to only support ASCII paths, but this
 // program reads paths on stdin and the program that spawns it outputs
 // paths as non-wide strings anyway.
 base::FilePath FilePathFromASCII(const std::string& str) {
 #if defined(OS_WIN)
-  return base::FilePath(base::ASCIIToWide(str));
+  return base::FilePath(base::ASCIIToUTF16(str));
 #else
   return base::FilePath(str);
 #endif
 }
 
 int main(int argc, const char* argv[]) {
   base::EnableTerminationOnHeapCorruption();
   CommandLine::Init(argc, argv);
   const CommandLine& parsed_command_line = *CommandLine::ForCurrentProcess();
   bool histograms = parsed_command_line.HasSwitch(kOptionCompareHistograms);
@@ skipping 29 matching lines @@
                         base::FilePath(args[2]));
     }
   } else if (args.size() == 2) {
     return CompareImages(
         base::FilePath(args[0]), base::FilePath(args[1]), histograms);
   }
 
   PrintHelp();
   return kStatusError;
 }