Don't run string_number_conversion_test.cc on win/asan/dll again.

Reapplies https://chromium-review.googlesource.com/c/chromium/src/+/757880,
which got removed in https://chromium-review.googlesource.com/c/762380/ when
we removed all crashpad_tests from all win/asan bots.  crashpad_tests runs
on the win/asan bots again, so this one test needs to be disabled again.

(See bug; root cause bugs.llvm.org/PR35137)

Bug: 856174
Change-Id: I0796efd9ba306ea5a304a5ae85eeb4af9eec656e
Reviewed-on: https://chromium-review.googlesource.com/1113664Reviewed-by: Reid Kleckner <rnk@chromium.org>
Reviewed-by: Robert Sesek <rsesek@chromium.org>
Commit-Queue: Nico Weber <thakis@chromium.org>
Cr-Commit-Position: refs/heads/master@{#570163}

third_party/crashpad/crashpad/util/BUILD.gn

@@ -14,6 +14,10 @@
 
 import("../build/crashpad_buildconfig.gni")
 
+if (crashpad_is_in_chromium) {
+  import("//build/config/sanitizers/sanitizers.gni")
+}
+
 declare_args() {
   use_boringssl_for_http_transport_socket = crashpad_is_fuchsia
 }
@@ -636,6 +640,13 @@ source_set("util_test") {
       "win/scoped_process_suspend_test.cc",
       "win/session_end_watcher_test.cc",
     ]
+
+    if (crashpad_is_in_chromium) {
+      if (is_asan && is_component_build) {
+        # TODO(crbug.com/856174): Re-enable these once Windows ASan is fixed.
+        sources -= [ "stdlib/string_number_conversion_test.cc" ]
+      }
+    }
   }
 
   data = [