[crossOriginIsolated] Correct the metrics for SAB construction.

Correcting an inversed condition for recording isolated vs non
isolated SharredArrayBuffer constructions.

Bug: 1143191
Change-Id: Ibd51e5eb13a3228732c1dad34405101fe824eb40
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2527059Reviewed-by: Mike West <mkwst@chromium.org>
Commit-Queue: Arthur Hemery <ahemery@chromium.org>
Cr-Commit-Position: refs/heads/master@{#825776}

third_party/blink/renderer/bindings/core/v8/use_counter_callback.cc

@@ -237,7 +237,7 @@ void UseCounterCallback(v8::Isolate* isolate,
       blink_feature = WebFeature::kV8RegExpReplaceCalledOnSlowRegExp;
       break;
     case v8::Isolate::kSharedArrayBufferConstructed:
-      if (CurrentExecutionContext(isolate)->CrossOriginIsolatedCapability()) {
+      if (!CurrentExecutionContext(isolate)->CrossOriginIsolatedCapability()) {
         blink_feature =
             WebFeature::kV8SharedArrayBufferConstructedWithoutIsolation;
       } else {