C++11: Use type aliases instead of typedefs

minidump/minidump_string_writer.h

 // Copyright 2014 The Crashpad Authors. All rights reserved.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //     http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
@@ skipping 12 matching lines @@
 #include "base/strings/string16.h"
 #include "minidump/minidump_extensions.h"
 #include "minidump/minidump_writable.h"
 
 namespace crashpad {
 namespace internal {
 
 //! \cond
 
 struct MinidumpStringWriterUTF16Traits {
-  typedef string16 StringType;
-  typedef MINIDUMP_STRING MinidumpStringType;
+  using StringType = string16;
+  using MinidumpStringType = MINIDUMP_STRING;
 };
 
 struct MinidumpStringWriterUTF8Traits {
-  typedef std::string StringType;
-  typedef MinidumpUTF8String MinidumpStringType;
+  using StringType = std::string;
+  using MinidumpStringType = MinidumpUTF8String;
 };
 
 //! \endcond
 
 //! \brief Writes a variable-length string to a minidump file in accordance with
 //!     the string type’s characteristics.
 //!
 //! MinidumpStringWriter objects should not be instantiated directly. To write
 //! strings to minidump file, use the MinidumpUTF16StringWriter and
 //! MinidumpUTF8StringWriter subclasses instead.
 template <typename Traits>
 class MinidumpStringWriter : public MinidumpWritable {
  public:
   MinidumpStringWriter();
   ~MinidumpStringWriter() override;
 
  protected:
-  typedef typename Traits::MinidumpStringType MinidumpStringType;
-  typedef typename Traits::StringType StringType;
+  using MinidumpStringType = typename Traits::MinidumpStringType;
+  using StringType = typename Traits::StringType;
 
   bool Freeze() override;
   size_t SizeOfObject() override;
   bool WriteObject(FileWriterInterface* file_writer) override;
 
   //! \brief Sets the string to be written.
   //!
   //! \note Valid in #kStateMutable.
   void set_string(const StringType& string) { string_.assign(string); }
 
@@ skipping 52 matching lines @@
   const std::string& UTF8() const { return string(); }
 
  private:
   DISALLOW_COPY_AND_ASSIGN(MinidumpUTF8StringWriter);
 };
 
 }  // namespace internal
 }  // namespace crashpad
 
 #endif  // CRASHPAD_MINIDUMP_MINIDUMP_STRING_WRITER_H_