[UI] Shuffle some exit handling code around

src/xenia/app/emulator_window.cc

@@ -75,10 +75,6 @@ bool EmulatorWindow::Initialize() {
 
   window_->on_closed.AddListener([this](UIEvent* e) {
     loop_->Quit();
-
-    // TODO(benvanik): proper exit.
-    XELOGI("User-initiated death!");
-    exit(1);
   });
   loop_->on_quit.AddListener([this](UIEvent* e) { window_.reset(); });
 

src/xenia/app/xenia_main.cc

@@ -178,6 +178,9 @@ int xenia_main(const std::vector<std::wstring>& args) {
   emulator_window->loop()->on_quit.AddListener([&](ui::UIEvent* e) {
     exiting = true;
     evt->Set();
+
+    XELOGI("Cheap-skate exit!");
+    exit(0);
   });
 
   // Enable the main menu now that the emulator is properly loaded