Add GL_ARB_invalidate_subdata functions to GrGLInterface.

include/gpu/gl/GrGLInterface.h

Index: include/gpu/gl/GrGLInterface.h
diff --git a/include/gpu/gl/GrGLInterface.h b/include/gpu/gl/GrGLInterface.h
index 3d34ae65bf25917cc9e70d95cb4a15bc53e11125..c403ce4dffe58318ac9730524f003866c8def3d4 100644
--- a/include/gpu/gl/GrGLInterface.h
+++ b/include/gpu/gl/GrGLInterface.h
@@ -222,6 +222,12 @@ public:
         GLPtr<GrGLGetTexLevelParameterivProc> fGetTexLevelParameteriv;
         GLPtr<GrGLGetUniformLocationProc> fGetUniformLocation;
         GLPtr<GrGLInsertEventMarkerProc> fInsertEventMarker;
+        GLPtr<GrGLInvalidateBufferDataProc> fInvalidateBufferData;
+        GLPtr<GrGLInvalidateBufferSubDataProc> fInvalidateBufferSubData;
+        GLPtr<GrGLInvalidateFramebufferProc> fInvalidateFramebuffer;
+        GLPtr<GrGLInvalidateSubFramebufferProc> fInvalidateSubFramebuffer;
+        GLPtr<GrGLInvalidateTexImageProc> fInvalidateTexImage;
+        GLPtr<GrGLInvalidateTexSubImageProc> fInvalidateTexSubImage;
         GLPtr<GrGLLineWidthProc> fLineWidth;
         GLPtr<GrGLLinkProgramProc> fLinkProgram;
         GLPtr<GrGLLoadIdentityProc> fLoadIdentity;