Patch to try dump-on-DCHECK.

build/config/BUILD.gn

Index: build/config/BUILD.gn
diff --git a/build/config/BUILD.gn b/build/config/BUILD.gn
index cfa910d3eeea22710778e7abb96255e7224d2aa3..3bba5a4ac453a0c7f8da387541967b2d26d5617c 100644
--- a/build/config/BUILD.gn
+++ b/build/config/BUILD.gn
@@ -87,6 +87,14 @@ config("feature_flags") {
   if (use_browser_spellchecker) {
     defines += [ "USE_BROWSER_SPELLCHECKER=1" ]
   }
+
+  # In Windows official builds, enable DCHECKs to dump-without-crashing.

[Nico, 2016/03/20 23:10:40]

windows official builds are still built with gyp, so since you're not modifying
any gyp files this patch has no effect on real official binaries atm

[Wez, 2016/03/23 04:18:13]

Acknowledged.

Added some ugly GYP hackery.

+  # See crbug.com/596231.
+  if (is_official_build && is_win) {
+    dcheck_always_on = true
+    defines += [ "DCHECK_IS_DUMP_WITHOUT_CRASH=1" ]
+  }
+
   if (dcheck_always_on) {
     defines += [ "DCHECK_ALWAYS_ON=1" ]
   }