Add a function to steal the GL texture
Merge pull request #18 from pcwalton/steal

Add a function to steal the GL texture
Duplicate texture stealing code from mac for unix.
Merge pull request #20 from jdm/unix

Duplicate texture stealing code from mac for unix.
Add extra field to SkNativeSharedGLContext ctor.

This field is used to pass in a shared `Display*` on linux to avoid driver
bugs with shared contexts.
Merge pull request #21 from metajack/linux-share-display

Add extra field to SkNativeSharedGLContext ctor.
support android build
add native shared gl context to android
add stealTextureId to SharedGLContext of android
Merge pull request #24 from webconvforge/PRcandidate

support android build
Makefile: Look at CFG_ENABLE_DEBUG_SKIA not CFG_ENABLE_DEBUG
WIP