am e43081d3: am 413e35ed: Merge changes I9226275f,If78e8431,I3e36796d,I90c157df

* commit 'e43081d3e7321c8d0892a809ea625ecf2cf36b0c':
  opengl emulator : GLESv2 handling in the test egl implementation
  emulator opengl : unit-test renderer  GLESv2
  emulator opengl: context version param
  emulator opengl - encode glShaderSource