Enable stencil clipping in mixed sampled render targets

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 aea6d2c22e6ca7e5d8eed413fc6e99a8656cb0da..fca5bee7e4fb50bb7318acf1782def5802c6322a 100644
--- a/include/gpu/gl/GrGLFunctions.h
+++ b/include/gpu/gl/GrGLFunctions.h
@@ -390,6 +390,11 @@ typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLGetVertexArrayIntegeri_vProc)(GrGLuin
 typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLGetVertexArrayPointeri_vProc)(GrGLuint vaobj, GrGLuint index, GrGLenum pname, GrGLvoid **param);
 typedef GrGLvoid* (GR_GL_FUNCTION_TYPE* GrGLMapNamedBufferRangeProc)(GrGLuint buffer, GrGLintptr offset, GrGLsizeiptr length, GrGLbitfield access);
 typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLFlushMappedNamedBufferRangeProc)(GrGLuint buffer, GrGLintptr offset, GrGLsizeiptr length);
+// OpenGL 4.5
+typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLNamedFramebufferParameteriProc)(GrGLuint framebuffer, GrGLenum pname, GrGLint param);
+
+/* NV_sample_locations */
+typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLNamedFramebufferSampleLocationsfvProc)(GrGLuint framebuffer, GrGLuint start, GrGLsizei count, const GrGLfloat *v);
 
 /* KHR_debug */
 typedef GrGLvoid (GR_GL_FUNCTION_TYPE* GrGLDebugMessageControlProc)(GrGLenum source, GrGLenum type, GrGLenum severity, GrGLsizei count, const GrGLuint* ids, GrGLboolean enabled);