Add a GrCustomCoordsTextureEffect class

src/gpu/GrTextContext.cpp

Index: src/gpu/GrTextContext.cpp
diff --git a/src/gpu/GrTextContext.cpp b/src/gpu/GrTextContext.cpp
index e4303c1d7c4e9800c8436d3320b80b11d9eeefca..a86d1d8bced752c45a0eb4bf053265f5fd32671d 100644
--- a/src/gpu/GrTextContext.cpp
+++ b/src/gpu/GrTextContext.cpp
@@ -17,6 +17,7 @@
 #include "GrTextStrike_impl.h"
 #include "SkPath.h"
 #include "SkStrokeRec.h"
+#include "effects/GrCustomCoordsTextureEffect.h"
 
 static const int kGlyphCoordsAttributeIndex = 1;
 
@@ -37,7 +38,7 @@ void GrTextContext::flushGlyphs() {
 
         // This effect could be stored with one of the cache objects (atlas?)
         drawState->addCoverageEffect(
-                                GrSimpleTextureEffect::CreateWithCustomCoords(fCurrTexture, params),
+                                GrCustomCoordsTextureEffect::Create(fCurrTexture, params),
                                 kGlyphCoordsAttributeIndex)->unref();
 
         if (!GrPixelConfigIsAlphaOnly(fCurrTexture->config())) {