Merge "Avoid null app context in StaticApplicationContextServiceFetcher." into nyc-dev

        public final T getService(ContextImpl ctx) {

            synchronized (StaticApplicationContextServiceFetcher.this) {

                if (mCachedInstance == null) {

                    mCachedInstance = createService(ctx.getApplicationContext());

                    Context appContext = ctx.getApplicationContext();

                    // If the application context is null, we're either in the system process or

                    // it's the application context very early in app initialization. In both these

                    // cases, the passed-in ContextImpl will not be freed, so it's safe to pass it

                    // to the service. http://b/27532714 .

                    mCachedInstance = createService(appContext != null ? appContext : ctx);

                }

                return mCachedInstance;

            }