Fix generation of Android SampleApp APK now that we default to using gyp's ninja generator.

R=scroggo@google.com

Author: djsollen@google.com

Review URL: https://codereview.chromium.org/235783003

git-svn-id: http://skia.googlecode.com/svn/trunk@14212 2bbb7eff-a529-9590-31e7-b0007b416f81
1 file changed