Use GLSLCaps for creating processor keys and GLSL-specific programs

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 87e7f2d834c3641384f4f62d327fe613528b8843..af688129bac84cf129e8909059e30a8d1ec49551 100644
--- a/src/gpu/gl/GrGLProgramDesc.cpp
+++ b/src/gpu/gl/GrGLProgramDesc.cpp
@@ -106,6 +106,7 @@ bool GrGLProgramDescBuilder::Build(GrProgramDesc* desc,
     GrProcessorKeyBuilder b(&glDesc->key());
 
     primProc.getGLProcessorKey(batchTracker, gpu->glCaps(), &b);
+    //**** use glslCaps here?
     if (!get_meta_key(primProc, gpu->glCaps(), 0, &b)) {
         glDesc->key().reset();
         return false;
@@ -115,6 +116,7 @@ bool GrGLProgramDescBuilder::Build(GrProgramDesc* desc,
         const GrPendingFragmentStage& fps = pipeline.getFragmentStage(s);
         const GrFragmentProcessor& fp = *fps.processor();
         fp.getGLProcessorKey(gpu->glCaps(), &b);
+        //**** use glslCaps here?
         if (!get_meta_key(fp, gpu->glCaps(), primProc.getTransformKey(fp.coordTransforms()), &b)) {
             glDesc->key().reset();
             return false;
@@ -123,6 +125,7 @@ bool GrGLProgramDescBuilder::Build(GrProgramDesc* desc,
 
     const GrXferProcessor& xp = *pipeline.getXferProcessor();
     xp.getGLProcessorKey(gpu->glCaps(), &b);
+    //**** use glslCaps here?
     if (!get_meta_key(xp, gpu->glCaps(), 0, &b)) {
         glDesc->key().reset();
         return false;