override applicationShouldTerminate so we can cleanup when we quit

src/views/mac/skia_mac.mm

Index: src/views/mac/skia_mac.mm
diff --git a/src/views/mac/skia_mac.mm b/src/views/mac/skia_mac.mm
index e3c31c40f6084ca555c7419f2e98aa8efe5394c0..393e6d81414a7499763b2946dd747f361f57d01e 100644
--- a/src/views/mac/skia_mac.mm
+++ b/src/views/mac/skia_mac.mm
@@ -14,7 +14,11 @@ int main(int argc, char *argv[]) {
     NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
     application_init();
     int retVal =  NSApplicationMain(argc, (const char **)argv);
+    
+#if 0
+    // we don't expect NSApplicationMain to return. See our applicationShouldTerminate handler.
     application_term();
     [pool release];
+#endif
     return retVal;
 }