Added registerChild; transforms, textures, glKey automatically handled.

src/gpu/gl/GrGLProgramDesc.cpp

Index: src/gpu/gl/GrGLProgramDesc.cpp
diff --git a/src/gpu/gl/GrGLProgramDesc.cpp b/src/gpu/gl/GrGLProgramDesc.cpp
index 7eb4fe151765f3082e5f4e246ca3a8085b1ae376..f5d34144c729123913e783352f9c777be791fe78 100644
--- a/src/gpu/gl/GrGLProgramDesc.cpp
+++ b/src/gpu/gl/GrGLProgramDesc.cpp
@@ -115,7 +115,9 @@ bool GrGLProgramDescBuilder::Build(GrProgramDesc* desc,
     for (int s = 0; s < pipeline.numFragmentStages(); ++s) {
         const GrPendingFragmentStage& fps = pipeline.getFragmentStage(s);
         const GrFragmentProcessor& fp = *fps.processor();
-        fp.getGLProcessorKey(*gpu->glCaps().glslCaps(), &b);
+
+        fp.getGLProcessorKeyIncludeChildProcs(*gpu->glCaps().glslCaps(), &b);
+
         //**** use glslCaps here?
         if (!get_meta_key(fp, gpu->glCaps(), primProc.getTransformKey(fp.coordTransforms()), &b)) {
             glDesc->key().reset();