Remove base's ALIGNOF/ALIGNAS in favor of alignof/alignas.

third_party/crashpad/crashpad/minidump/minidump_context.h

Index: third_party/crashpad/crashpad/minidump/minidump_context.h
diff --git a/third_party/crashpad/crashpad/minidump/minidump_context.h b/third_party/crashpad/crashpad/minidump/minidump_context.h
index 4eb3acfa3cd13aff48502cc4483e70ad6c0c41d1..583b91353ef5c3528364844c5c72d45e10262e57 100644
--- a/third_party/crashpad/crashpad/minidump/minidump_context.h
+++ b/third_party/crashpad/crashpad/minidump/minidump_context.h
@@ -17,7 +17,6 @@
 
 #include <stdint.h>
 
-#include "base/compiler_specific.h"
 #include "snapshot/cpu_context.h"
 #include "util/numeric/int128.h"
 
@@ -254,7 +253,7 @@ enum MinidumpContextAMD64Flags : uint32_t {
 //!     normally alias `dr6` and `dr7`, respectively. See Intel Software
 //!     Developer’s Manual, Volume 3B: System Programming, Part 2 (253669-052),
 //!     17.2.2 “Debug Registers DR4 and DR5”.
-struct ALIGNAS(16) MinidumpContextAMD64 {
+struct alignas(16) MinidumpContextAMD64 {
   //! \brief Register parameter home address.
   //!
   //! On Windows, this field may contain the “home” address (on-stack, in the