Refactor fileutils.cc/h and fileutils_unittests.cc into their own targets.

webrtc/test/testsupport/fileutils.cc

 /*
  *  Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
 #include "webrtc/test/testsupport/fileutils.h"
 
 #include <assert.h>
 
 #ifdef WIN32
 #include <direct.h>
 #include <tchar.h>
 #include <windows.h>
 #include <algorithm>
 
 #include "Shlwapi.h"
+#include "WinDef.h"
 
 #include "webrtc/system_wrappers/include/utf_util_win.h"
 #define GET_CURRENT_DIR _getcwd
 #else
 #include <unistd.h>
 
 #define GET_CURRENT_DIR getcwd
 #endif
 
 #include <sys/stat.h>  // To check for directory existence.
@@ skipping 96 matching lines @@
   std::string path = WorkingDir();
   if (path == kFallbackPath) {
     return kCannotFindProjectRootDir;
   }
   if (relative_dir_path_set) {
     path = path + kPathDelimiter + relative_dir_path;
   }
   path = path + kPathDelimiter + ".." + kPathDelimiter + "..";
   char canonical_path[FILENAME_MAX];
 #ifdef WIN32
-  bool succeeded = PathCanonicalizeA(canonical_path, path.c_str());
+  BOOL succeeded = PathCanonicalizeA(canonical_path, path.c_str());
 #else
   bool succeeded = realpath(path.c_str(), canonical_path) != NULL;
 #endif
   if (succeeded) {
     path = std::string(canonical_path) + kPathDelimiter;
     return path;
   } else {
     fprintf(stderr, "Cannot find project root directory!\n");
     return kCannotFindProjectRootDir;
   }
@@ skipping 127 matching lines @@
     if (fseek(f, 0, SEEK_END) == 0) {
       size = ftell(f);
     }
     fclose(f);
   }
   return size;
 }
 
 }  // namespace test
 }  // namespace webrtc