Fix return type of glGetAttribLocation and glGetUniformLocation

from int to GLint.

See:
   https://android-review.googlesource.com/#/c/46120
   http://www.khronos.org/opengles/sdk/docs/man/xhtml/glGetAttribLocation.xml
   http://www.khronos.org/opengles/sdk/docs/man/xhtml/glGetUniformLocation.xml

Change-Id: I57fa430be2987b41e31fb6b3bcefa5dfb58e63b9
1 file changed