Source release 17.1.2

third_party/boringssl/boringssl.gyp

@@ -4,6 +4,7 @@
     'asm_target_arch%': 'none',
     'has_nasm%': 'false',
     'nasm_path%': 'nasm.exe',
+    'use_msan%': 'false',
   },
 
   'target_defaults': {
@@ -67,8 +68,10 @@
         # This massive, nested conditional block will select the correct batch
         # of assembly language files for the current OS and CPU architecture, or
         # it will turn off assembly language files entirely if the
-        # |asm_target_arch| has been set to "none".
-        ['asm_target_arch=="none" or (OS=="win" and has_nasm!="true")', {
+        # |asm_target_arch| has been set to "none", |use_msan| has been set to
+        # "true", or NASM is not available on Windows.
+        ['asm_target_arch=="none" or use_msan=="true" or (OS=="win" and \
+                                                          has_nasm!="true")', {
           'defines': [
             'OPENSSL_NO_ASM',
           ],