C++11: Use type aliases instead of typedefs

util/misc/symbolic_constants_common.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 74 matching lines @@
   //! For families whose values may be constructed as bitfields, allow
   //! conversion to strings containing multiple individual components treated as
   //! being combined by a bitwise “or” operation. An example family of constants
   //! that behaves this way is the suite of Mach exception masks. For constants
   //! that are not constructed as bitfields, or constants that are only
   //! partially constructed as bitfields, this option has no effect.
   kUseOr = 1 << 2,
 };
 
 //! \brief A bitfield containing values of #SymbolicConstantToStringOptionBits.
-typedef unsigned int SymbolicConstantToStringOptions;
+using SymbolicConstantToStringOptions = unsigned int;
 
 //! \brief Options for various `StringTo*` functions in `symbolic_constants_*`
 //!     files.
 //!
 //! Not every `StringTo*` function will implement each of these options. See
 //! function-specific documentation for details.
 //!
 //! \sa \ref symbolic_constant_terminology "Symbolic constant terminology"
 enum StringToSymbolicConstantOptionBits {
   //! \brief Allow conversion from a string containing a symbolic constant by
@@ skipping 12 matching lines @@
   //! For families whose values may be constructed as bitfields, allow
   //! conversion of strings containing multiple individual components treated as
   //! being combined by a bitwise “or” operation. An example family of constants
   //! that behaves this way is the suite of Mach exception masks. For constants
   //! that are not constructed as bitfields, or constants that are only
   //! partially constructed as bitfields, this option has no effect.
   kAllowOr = 1 << 3,
 };
 
 //! \brief A bitfield containing values of #StringToSymbolicConstantOptionBits.
-typedef unsigned int StringToSymbolicConstantOptions;
+using StringToSymbolicConstantOptions = unsigned int;
 
 }  // namespace crashpad
 
 #endif  // CRASHPAD_UTIL_MISC_SYMBOLIC_CONSTANTS_COMMON_H_