[heap] Update path of xml file in chromium for GarbageCollectionReason

Change-Id: Ib9956fb8ad6a129bf0df0775bc1e691a059cbd27
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2442614
Auto-Submit: Dominik Inführ <dinfuehr@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#70252}

src/heap/heap.h

@@ -153,7 +153,7 @@ enum class GarbageCollectionReason {
   kBackgroundAllocationFailure = 25,
   // If you add new items here, then update the incremental_marking_reason,
   // mark_compact_reason, and scavenge_reason counters in counters.h.
-  // Also update src/tools/metrics/histograms/histograms.xml in chromium.
+  // Also update src/tools/metrics/histograms/enums.xml in chromium.
 };
 
 enum class YoungGenerationHandling {