Revert of Try harder to work around a clang/win bug.

content/browser/background_sync/background_sync_registration_options.h

Index: content/browser/background_sync/background_sync_registration_options.h
diff --git a/content/browser/background_sync/background_sync_registration_options.h b/content/browser/background_sync/background_sync_registration_options.h
index 1092f3ea3245da174af8b8d7e00d06c1259dd178..9dcb8d9f4ba958b9c700f9e1b413ce973595852f 100644
--- a/content/browser/background_sync/background_sync_registration_options.h
+++ b/content/browser/background_sync/background_sync_registration_options.h
@@ -19,10 +19,10 @@
   bool Equals(const BackgroundSyncRegistrationOptions& other) const;
 
   std::string tag;
-  int64_t min_period;
-  SyncNetworkState network_state;
-  SyncPowerState power_state;
-  SyncPeriodicity periodicity;
+  int64_t min_period = 0;
+  SyncNetworkState network_state = NETWORK_STATE_ONLINE;
+  SyncPowerState power_state = POWER_STATE_AVOID_DRAINING;
+  SyncPeriodicity periodicity = SYNC_ONE_SHOT;
 };
 
 }  // namespace content