Enable storing last-dispatched exception per-thread.

third_party/crashpad/crashpad/client/crashpad_client_win.cc

Index: third_party/crashpad/crashpad/client/crashpad_client_win.cc
diff --git a/third_party/crashpad/crashpad/client/crashpad_client_win.cc b/third_party/crashpad/crashpad/client/crashpad_client_win.cc
index 7a3d0047a98ae4a9fca483c60135d16fbe550475..55a1c19e1a5eaf15a2f0a1466bfa1de34c1da115 100644
--- a/third_party/crashpad/crashpad/client/crashpad_client_win.cc
+++ b/third_party/crashpad/crashpad/client/crashpad_client_win.cc
@@ -22,6 +22,7 @@
 #include <memory>
 
 #include "base/atomicops.h"
+#include "base/debug/activity_tracker.h"
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/scoped_generic.h"
@@ -114,6 +115,15 @@ extern "C" LONG __asan_unhandled_exception_filter(EXCEPTION_POINTERS* info);
 #endif
 
 LONG WINAPI UnhandledExceptionHandler(EXCEPTION_POINTERS* exception_pointers) {
+  // Store the event in persistent tracking data. EXAMPLE ONLY -- DO NOT SUBMIT
+  base::debug::GlobalActivityTracker* tracker =
+      base::debug::GlobalActivityTracker::Get();
+  if (tracker) {
+    tracker->SetProcessPhase(
+        base::debug::GlobalActivityTracker::PROCESS_UNHANDLED_EXCEPTION);
+    tracker->RecordException(nullptr);
+  }
+
 #if defined(ADDRESS_SANITIZER)
   // In ASan builds, delegate to the ASan exception filter.
   LONG status = __asan_unhandled_exception_filter(exception_pointers);