Fix some VS 2015 warnings

util/util.gyp

Index: util/util.gyp
diff --git a/util/util.gyp b/util/util.gyp
index 83f2c5599b2fd9e4116bf3c96fa5e406b829e865..7ef9c4ee72e4e6d4ad90aad83d9c72038df3dad5 100644
--- a/util/util.gyp
+++ b/util/util.gyp
@@ -259,6 +259,7 @@
           },
           'msvs_disabled_warnings': [
             4201,  # nonstandard extension used : nameless struct/union.
+            4577,  # 'noexcept' used with no exception handling mode specified

[Mark Mentovai, 2015/12/14 23:51:30]

Is there a macro that says that exceptions are off? We can key off of that and
#define CRASHPAD_NOEXCEPT empty in util/stdlib/aligned_allocator.h.

[brucedawson, 2015/12/15 00:00:56]

We could do that, but it seems more fragile.
My impression is that we want to tell the compiler that no exceptions will be
thrown so that it can generate better code. The warning seems to be more related
to nothrow semantics where the compiler was required to enforce the semantics.

[Mark Mentovai, 2015/12/15 00:58:56]

brucedawson wrote:
I was thinking that it would take care of the GN build also, but it’s fine like
this too.

           ],
           'conditions': [
             ['target_arch=="ia32"', {