Remove GrStagedProcessor, remove the word Stage as it applies to FPs

Review URL: https://codereview.chromium.org/1307223004
diff --git a/tests/GLProgramsTest.cpp b/tests/GLProgramsTest.cpp
index 16745e5..b0b7446 100644
--- a/tests/GLProgramsTest.cpp
+++ b/tests/GLProgramsTest.cpp
@@ -148,9 +148,9 @@
 
         // finally add the stage to the correct pipeline in the drawstate
         if (s < numColorProcs) {
-            pipelineBuilder->addColorProcessor(fp);
+            pipelineBuilder->addColorFragmentProcessor(fp);
         } else {
-            pipelineBuilder->addCoverageProcessor(fp);
+            pipelineBuilder->addCoverageFragmentProcessor(fp);
         }
         ++s;
     }