Use C++11 alignment primitives

third_party/crashpad/crashpad/minidump/minidump_extensions.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 84 matching lines @@
   // 0x4350 = "CP"
 
   //! \brief The stream type for MinidumpCrashpadInfo.
   kMinidumpStreamTypeCrashpadInfo = 0x43500001,
 };
 
 //! \brief A variable-length UTF-8-encoded string carried within a minidump
 //!     file.
 //!
 //! \sa MINIDUMP_STRING
-struct ALIGNAS(4) PACKED MinidumpUTF8String {
+struct alignas(4) PACKED MinidumpUTF8String {

[scottmg, 2017/06/09 19:49:01]

There's a bunch more ALIGNAS in this file.

I can do this upstream and roll if you want instead. Is there a bug for this
work?

   // The field names do not conform to typical style, they match the names used
   // in MINIDUMP_STRING. This makes it easier to operate on MINIDUMP_STRING (for
   // UTF-16 strings) and MinidumpUTF8String using templates.
 
   //! \brief The length of the #Buffer field in bytes, not including the `NUL`
   //!     terminator.
   //!
   //! \note This field is interpreted as a byte count, not a count of Unicode
   //!     code points.
   uint32_t Length;
@@ skipping 325 matching lines @@
 #if defined(COMPILER_MSVC)
 #pragma pack(pop)
 #endif  // COMPILER_MSVC
 #undef PACKED
 
 MSVC_POP_WARNING();  // C4200
 
 }  // namespace crashpad
 
 #endif  // CRASHPAD_MINIDUMP_MINIDUMP_EXTENSIONS_H_