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/gpu/effects/GrConfigConversionEffect.cpp b/src/gpu/effects/GrConfigConversionEffect.cpp
index 9689c0f..1502905 100644
--- a/src/gpu/effects/GrConfigConversionEffect.cpp
+++ b/src/gpu/effects/GrConfigConversionEffect.cpp
@@ -109,7 +109,7 @@
         swapRB = random->nextBool();
     }
     return SkNEW_ARGS(GrConfigConversionEffect,
-            (textures[GrCustomStageUnitTest::kSkiaPMTextureIdx], swapRB, pmConv));
+            (textures[GrEffectUnitTest::kSkiaPMTextureIdx], swapRB, pmConv));
 }
 
 ///////////////////////////////////////////////////////////////////////////////
@@ -185,16 +185,16 @@
                                                         (tempTex, false, *pmToUPMRule)));
 
         context->setRenderTarget(readTex->asRenderTarget());
-        paint.colorSampler(0)->setCustomStage(pmToUPMStage1);
+        paint.colorSampler(0)->setEffect(pmToUPMStage1);
         context->drawRectToRect(paint, kDstRect, kSrcRect);
 
         readTex->readPixels(0, 0, 256, 256, kRGBA_8888_GrPixelConfig, firstRead);
 
         context->setRenderTarget(tempTex->asRenderTarget());
-        paint.colorSampler(0)->setCustomStage(upmToPMStage);
+        paint.colorSampler(0)->setEffect(upmToPMStage);
         context->drawRectToRect(paint, kDstRect, kSrcRect);
         context->setRenderTarget(readTex->asRenderTarget());
-        paint.colorSampler(0)->setCustomStage(pmToUPMStage2);
+        paint.colorSampler(0)->setEffect(pmToUPMStage2);
         context->drawRectToRect(paint, kDstRect, kSrcRect);
 
         readTex->readPixels(0, 0, 256, 256, kRGBA_8888_GrPixelConfig, secondRead);