Move path functions from file_util to FilePath object.

base/files/file_path.cc

 // Copyright (c) 2012 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 "base/files/file_path.h"
 
 #include <string.h>
 #include <algorithm>
 
 #include "base/basictypes.h"
@@ skipping 503 matching lines @@
   return Append(ASCIIToUTF16(component.as_string()));
 #elif defined(OS_POSIX)
   return Append(component.as_string());
 #endif
 }
 
 bool FilePath::IsAbsolute() const {
   return IsPathAbsolute(path_);
 }
 
+bool FilePath::EndsWithSeparator() const {
+  if (empty())
+    return false;
+  return IsSeparator(path_[path_.size() - 1]);
+}
+
+FilePath FilePath::AsEndingWithSeparator() const {
+  if (EndsWithSeparator() || path_.empty())
+    return *this;
+
+  StringType path_str;
+  path_str.reserve(path_.length() + 1);  // Only allocate string once.
+
+  path_str = path_;
+  path_str.append(&kSeparators[0], 1);
+  return FilePath(path_str);
+}
+
 FilePath FilePath::StripTrailingSeparators() const {
   FilePath new_path(path_);
   new_path.StripTrailingSeparatorsInternal();
 
   return new_path;
 }
 
 bool FilePath::ReferencesParent() const {
   std::vector<StringType> components;
   GetComponents(&components);
@@ skipping 717 matching lines @@
 #else
   return *this;
 #endif
 }
 
 }  // namespace base
 
 void PrintTo(const base::FilePath& path, std::ostream* out) {
   *out << path.value();
 }