service worker: Add crash keys for OnMessageReceived crash

blimp/engine/app/blimp_engine_crash_keys.cc

Index: blimp/engine/app/blimp_engine_crash_keys.cc
diff --git a/blimp/engine/app/blimp_engine_crash_keys.cc b/blimp/engine/app/blimp_engine_crash_keys.cc
index d858f50286808d84d5e46b60c9968601bf86ffe8..527aa79ae5b7d336eb6b46d7513b4e37c20a21ce 100644
--- a/blimp/engine/app/blimp_engine_crash_keys.cc
+++ b/blimp/engine/app/blimp_engine_crash_keys.cc
@@ -81,6 +81,10 @@ size_t RegisterEngineCrashKeys() {
 
       // Temporary for https://crbug.com/616149.
       { "existing_extension_pref_value_type", crash_keys::kSmallSize },
+
+      // Temporary for https://crbug.com/625040
+      { "swdh_not_handled_message_type", crash_keys::kMediumSize },
+      { "swdh_not_handled_worker_status", crash_keys::kMediumSize },
     };
 
   return base::debug::InitCrashKeys(engine_keys, arraysize(engine_keys),