C++11: Use type aliases instead of typedefs

snapshot/cpu_context.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,
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
 #ifndef CRASHPAD_SNAPSHOT_SNAPSHOT_CPU_CONTEXT_H_
 #define CRASHPAD_SNAPSHOT_SNAPSHOT_CPU_CONTEXT_H_
 
 #include <stdint.h>
 
 #include "snapshot/cpu_architecture.h"
 
 namespace crashpad {
 
 //! \brief A context structure carrying 32-bit x86 CPU state.
 struct CPUContextX86 {
-  typedef uint8_t X87Register[10];
+  using X87Register = uint8_t[10];
 
   union X87OrMMXRegister {
     struct {
       X87Register st;
       uint8_t st_reserved[6];
     };
     struct {
       uint8_t mm_value[8];
       uint8_t mm_reserved[8];
     };
   };
 
-  typedef uint8_t XMMRegister[16];
+  using XMMRegister = uint8_t[16];
 
   struct Fxsave {
     uint16_t fcw;  // FPU control word
     uint16_t fsw;  // FPU status word
     uint8_t ftw;  // abridged FPU tag word
     uint8_t reserved_1;
     uint16_t fop;  // FPU opcode
     uint32_t fpu_ip;  // FPU instruction pointer offset
     uint16_t fpu_cs;  // FPU instruction pointer segment selector
     uint16_t reserved_2;
@@ skipping 64 matching lines @@
   uint32_t dr2;
   uint32_t dr3;
   uint32_t dr4;  // obsolete, normally an alias for dr6
   uint32_t dr5;  // obsolete, normally an alias for dr7
   uint32_t dr6;
   uint32_t dr7;
 };
 
 //! \brief A context structure carrying x86_64 CPU state.
 struct CPUContextX86_64 {
-  typedef CPUContextX86::X87Register X87Register;
-  typedef CPUContextX86::X87OrMMXRegister X87OrMMXRegister;
-  typedef CPUContextX86::XMMRegister XMMRegister;
+  using X87Register = CPUContextX86::X87Register;
+  using X87OrMMXRegister = CPUContextX86::X87OrMMXRegister;
+  using XMMRegister = CPUContextX86::XMMRegister;
 
   struct Fxsave {
     uint16_t fcw;  // FPU control word
     uint16_t fsw;  // FPU status word
     uint8_t ftw;  // abridged FPU tag word
     uint8_t reserved_1;
     uint16_t fop;  // FPU opcode
     union {
       // The expression of these union members is determined by the use of
       // fxsave/fxrstor or fxsave64/fxrstor64 (fxsaveq/fxrstorq). Mac OS X and
@@ skipping 73 matching lines @@
   CPUArchitecture architecture;
   union {
     CPUContextX86* x86;
     CPUContextX86_64* x86_64;
   };
 };
 
 }  // namespace crashpad
 
 #endif  // CRASHPAD_SNAPSHOT_SNAPSHOT_CPU_CONTEXT_H_