GrCustomStage Renaming Part 2

GrSamplerState member rename
GrCustomStageUnitTest rename
some comment updates
Review URL: https://codereview.appspot.com/6771043

git-svn-id: http://skia.googlecode.com/svn/trunk@6078 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/effects/gradients/SkTwoPointRadialGradient.cpp b/src/effects/gradients/SkTwoPointRadialGradient.cpp
index 50938f6..78220f8 100644
--- a/src/effects/gradients/SkTwoPointRadialGradient.cpp
+++ b/src/effects/gradients/SkTwoPointRadialGradient.cpp
@@ -473,10 +473,10 @@
                                                                          tm));
     GrSamplerState sampler;
     shader->asNewCustomStage(context, &sampler);
-    GrAssert(NULL != sampler.getCustomStage());
+    GrAssert(NULL != sampler.getEffect());
     // const_cast and ref is a hack! Will remove when asNewCustomStage returns GrEffect*
-    sampler.getCustomStage()->ref();
-    return const_cast<GrEffect*>(sampler.getCustomStage());
+    sampler.getEffect()->ref();
+    return const_cast<GrEffect*>(sampler.getEffect());
 }
 
 /////////////////////////////////////////////////////////////////////
@@ -665,7 +665,7 @@
         matrix.preConcat(localM);
     }
 
-    sampler->setCustomStage(SkNEW_ARGS(GrRadial2Gradient, (context, *this, fTileMode)), matrix)->unref();
+    sampler->setEffect(SkNEW_ARGS(GrRadial2Gradient, (context, *this, fTileMode)), matrix)->unref();
     return true;
 }