Import glTextureBarrier

include/gpu/gl/GrGLFunctions.h

Index: include/gpu/gl/GrGLFunctions.h
diff --git a/include/gpu/gl/GrGLFunctions.h b/include/gpu/gl/GrGLFunctions.h
index 59cf55a95e70681cdf89228fd77212bd7a9711fa..3995ead79759d3859cadddd225c5d42f5bef3951 100644
--- a/include/gpu/gl/GrGLFunctions.h
+++ b/include/gpu/gl/GrGLFunctions.h
@@ -187,6 +187,7 @@ extern "C" {
     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLTexStorage2DProc)(GrGLenum target, GrGLsizei levels, GrGLenum internalformat, GrGLsizei width, GrGLsizei height);
     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLDiscardFramebufferProc)(GrGLenum target, GrGLsizei numAttachments, const GrGLenum* attachments);
     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLTexSubImage2DProc)(GrGLenum target, GrGLint level, GrGLint xoffset, GrGLint yoffset, GrGLsizei width, GrGLsizei height, GrGLenum format, GrGLenum type, const GrGLvoid* pixels);
+    typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLTextureBarrierProc)();
     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLUniform1fProc)(GrGLint location, GrGLfloat v0);
     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLUniform1iProc)(GrGLint location, GrGLint v0);
     typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLUniform1fvProc)(GrGLint location, GrGLsizei count, const GrGLfloat* v);