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/GrGLShaderBuilder.cpp b/src/gpu/gl/GrGLShaderBuilder.cpp
index f11a8d9..217b874 100644
--- a/src/gpu/gl/GrGLShaderBuilder.cpp
+++ b/src/gpu/gl/GrGLShaderBuilder.cpp
@@ -99,7 +99,7 @@
 }
 
 void GrGLShaderBuilder::setupTextureAccess(const char* varyingFSName, GrSLType varyingType) {
-    // FIXME: We don't know how the custom stage will manipulate the coords. So we give up on using
+    // FIXME: We don't know how the effect will manipulate the coords. So we give up on using
     // projective texturing and always give the stage 2D coords. This will be fixed when custom
     // stages are responsible for setting up their own tex coords / tex matrices.
     switch (varyingType) {