Combine the emit functions in GrGLProgramStage.

R=robertphillips@google.com
Review URL: https://codereview.appspot.com/6741064

git-svn-id: http://skia.googlecode.com/svn/trunk@6057 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/effects/SkLightingImageFilter.cpp b/src/effects/SkLightingImageFilter.cpp
index 07acde3..6f089b0 100644
--- a/src/effects/SkLightingImageFilter.cpp
+++ b/src/effects/SkLightingImageFilter.cpp
@@ -939,7 +939,7 @@
 
 }
 
-class GrGLLightingEffect  : public GrGLProgramStage {
+class GrGLLightingEffect  : public GrGLLegacyProgramStage {
 public:
     GrGLLightingEffect(const GrProgramStageFactory& factory,
                        const GrCustomStage& stage);
@@ -960,7 +960,7 @@
     virtual void setData(const GrGLUniformManager&, const GrCustomStage&) SK_OVERRIDE;
 
 private:
-    typedef GrGLProgramStage INHERITED;
+    typedef GrGLLegacyProgramStage INHERITED;
 
     UniformHandle   fImageIncrementUni;
     UniformHandle   fSurfaceScaleUni;
@@ -1055,7 +1055,7 @@
 
 GrGLLightingEffect::GrGLLightingEffect(const GrProgramStageFactory& factory,
                                        const GrCustomStage& stage)
-    : GrGLProgramStage(factory)
+    : INHERITED(factory)
     , fImageIncrementUni(kInvalidUniformHandle)
     , fSurfaceScaleUni(kInvalidUniformHandle) {
     const GrLightingEffect& m = static_cast<const GrLightingEffect&>(stage);