Make GrGLInterface a per-GrContext refcounted object rather than a global

Review URL: http://codereview.appspot.com/4901046/



git-svn-id: http://skia.googlecode.com/svn/trunk@2140 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/gyp/gpu.gyp b/gyp/gpu.gyp
index 11e39a7..7330cf3 100644
--- a/gyp/gpu.gyp
+++ b/gyp/gpu.gyp
@@ -146,6 +146,7 @@
         '../gpu/src/GrGLProgram.h',
         '../gpu/src/GrGLRenderTarget.cpp',
         '../gpu/src/GrGLRenderTarget.h',
+        '../gpu/src/GrGLStencilBuffer.cpp',
         '../gpu/src/GrGLStencilBuffer.h',
         '../gpu/src/GrGLTexture.cpp',
         '../gpu/src/GrGLTexture.h',