Shutdown cleanup

mojo/examples/png_viewer/png_viewer.cc

Index: mojo/examples/png_viewer/png_viewer.cc
diff --git a/mojo/examples/png_viewer/png_viewer.cc b/mojo/examples/png_viewer/png_viewer.cc
index 62dcd2bc8f8b273bda61e8147bf90e313849d24a..ab2f70011ddf560e9d62ce05fda89f1f9314fa07 100644
--- a/mojo/examples/png_viewer/png_viewer.cc
+++ b/mojo/examples/png_viewer/png_viewer.cc
@@ -4,6 +4,7 @@
 
 #include <algorithm>
 
+#include "base/message_loop/message_loop.h"
 #include "base/strings/string_tokenizer.h"
 #include "mojo/examples/media_viewer/media_viewer.mojom.h"
 #include "mojo/public/cpp/application/application_connection.h"
@@ -166,6 +167,10 @@ class PNGViewer : public ApplicationDelegate,
     if (!bitmap_.isNull())
       DrawBitmap();
   }
+  virtual void OnViewManagerDisconnected(
+      view_manager::ViewManager* view_manager) OVERRIDE {
+    base::MessageLoop::current()->Quit();
+  }
 
   void DrawBitmap() {
     if (!content_view_)