GrCustomStage Renaming Part 3

Rename all things *CUSTOM_STAGE*, customStage*, and other miscellany

R=robertphillips@google.com
Review URL: https://codereview.appspot.com/6769048

git-svn-id: http://skia.googlecode.com/svn/trunk@6081 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/gpu/gl/GrGpuGL.h b/src/gpu/gl/GrGpuGL.h
index eab0a77..0cd7eb5 100644
--- a/src/gpu/gl/GrGpuGL.h
+++ b/src/gpu/gl/GrGpuGL.h
@@ -240,7 +240,7 @@
     void buildProgram(bool isPoints,
                       BlendOptFlags blendOpts,
                       GrBlendCoeff dstCoeff,
-                      const GrEffect** customStages,
+                      const GrEffect** effects,
                       ProgramDesc* desc);
 
     // Inits GrDrawTarget::Caps, subclass may enable additional caps.