Reland 'Convert //net and //chromecast to std::unordered_*'

chromecast/common/cast_resource_delegate.h

 // Copyright 2014 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.
 
 #ifndef CHROMECAST_COMMON_CAST_RESOURCE_DELEGATE_H_
 #define CHROMECAST_COMMON_CAST_RESOURCE_DELEGATE_H_
 
 #include <memory>
 #include <string>
+#include <unordered_map>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted_memory.h"
 #include "ui/base/resource/resource_bundle.h"
 
 namespace base {
 class FilePath;
 }
 
 namespace gfx {
@@ skipping 29 matching lines @@
                           base::StringPiece* value) override;
   bool GetLocalizedString(int message_id, base::string16* value) override;
 
   // Adds/removes/clears extra localized strings.
   void AddExtraLocalizedString(int resource_id,
                                const base::string16& localized);
   void RemoveExtraLocalizedString(int resource_id);
   void ClearAllExtraLocalizedStrings();
 
  private:
-  typedef base::hash_map<int, base::string16> ExtraLocaledStringMap;
+  using ExtraLocaledStringMap = std::unordered_map<int, base::string16>;
 
   ExtraLocaledStringMap extra_localized_strings_;
 
   DISALLOW_COPY_AND_ASSIGN(CastResourceDelegate);
 };
 
 }  // namespace chromecast
 
 #endif  // CHROMECAST_COMMON_CAST_RESOURCE_DELEGATE_H_