Postmortem report collection: validate internal state

base/debug/activity_tracker.cc

Index: base/debug/activity_tracker.cc
diff --git a/base/debug/activity_tracker.cc b/base/debug/activity_tracker.cc
index 0e8db930e2867b1be5edead1f71abea7367c4326..04a293cd09fa9ffd02acb7e5e471813258d3cdbb 100644
--- a/base/debug/activity_tracker.cc
+++ b/base/debug/activity_tracker.cc
@@ -1321,7 +1321,7 @@ GlobalActivityTracker::ReleaseForTesting() {
 
   subtle::Release_Store(&g_tracker_, 0);
   return WrapUnique(tracker);
-};
+}
 
 ThreadActivityTracker* GlobalActivityTracker::CreateTrackerForCurrentThread() {
   DCHECK(!this_thread_tracker_.Get());
@@ -1601,6 +1601,10 @@ void GlobalActivityTracker::RecordFieldTrial(const std::string& trial_name,
   process_data_.SetString(key, group_name);
 }
 
+void GlobalActivityTracker::MarkDeleted() {
+  allocator_->SetMemoryState(PersistentMemoryAllocator::MEMORY_DELETED);
+}
+
 GlobalActivityTracker::GlobalActivityTracker(
     std::unique_ptr<PersistentMemoryAllocator> allocator,
     int stack_depth,