C++11: Use type aliases instead of typedefs

util/misc/initialization_state_dcheck.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 144 matching lines @@
 #else
 
 // Since this is to be used as a DCHECK (for debugging), it should be
 // non-intrusive in non-DCHECK (non-debug, release) builds. An empty struct
 // would still have a nonzero size (rationale:
 // http://www.stroustrup.com/bs_faq2.html#sizeof-empty). Zero-length arrays are
 // technically invalid according to the standard, but clang and g++ accept them
 // without complaint even with warnings turned up. They take up no space at all,
 // and they can be “initialized” with the same () syntax used to initialize
 // objects of the DCHECK_IS_ON InitializationStateDcheck class above.
-typedef bool InitializationStateDcheck[0];
+using InitializationStateDcheck = bool[0];
 
 namespace internal {
 
 // This function exists to make use of the InitializationStateDcheck object so
 // that it appears to be used. It always returns true, so that it can be used
 // as the argument to a no-op DCHECK.
 inline bool EatInitializationState(const InitializationStateDcheck*) {
   return true;
 }
 
@@ skipping 10 matching lines @@
       &(initialization_state_dcheck)))
 #define INITIALIZATION_STATE_DCHECK_VALID(initialization_state_dcheck) \
   DCHECK(::crashpad::internal::EatInitializationState( \
       &(initialization_state_dcheck)))
 
 #endif
 
 }  // namespace crashpad
 
 #endif  // CRASHPAD_UTIL_MISC_INITIALIZATION_INITIALIZATION_STATE_DCHECK_H_