Don't log deprecated API warning to null context

(cherry picked from commit 8c7919b)

Bug: 1401223
Change-Id: If085c87dfe63e9aee206f0f8bf99b36fbfef1c8b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4111766
Reviewed-by: Yoav Weiss <yoavweiss@chromium.org>
Commit-Queue: Ian Clelland <iclelland@chromium.org>
Cr-Original-Commit-Position: refs/heads/main@{#1084282}
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4129321
Auto-Submit: Ian Clelland <iclelland@chromium.org>
Commit-Queue: Yoav Weiss <yoavweiss@chromium.org>
Cr-Commit-Position: refs/branch-heads/5414@{#1157}
Cr-Branched-From: 4417ee5-refs/heads/main@{#1070088}

third_party/blink/renderer/core/timing/performance.cc

@@ -298,11 +298,12 @@ PerformanceEntryVector Performance::getEntriesByType(
       PerformanceEntry::ToEntryTypeEnum(entry_type);
   if (!PerformanceEntry::IsValidTimelineEntryType(type)) {
     PerformanceEntryVector empty_entries;
-    String message = "Deprecated API for given entry type.";
-    GetExecutionContext()->AddConsoleMessage(
-        MakeGarbageCollected<ConsoleMessage>(
-            mojom::ConsoleMessageSource::kJavaScript,
-            mojom::ConsoleMessageLevel::kWarning, message));
+    if (ExecutionContext* execution_context = GetExecutionContext()) {
+      String message = "Deprecated API for given entry type.";
+      execution_context->AddConsoleMessage(MakeGarbageCollected<ConsoleMessage>(
+          mojom::ConsoleMessageSource::kJavaScript,
+          mojom::ConsoleMessageLevel::kWarning, message));
+    }
     return empty_entries;
   }
   return getEntriesByTypeInternal(type);