Some GrGLShaderBuilder cleanup

Review URL: https://codereview.appspot.com/6500043/



git-svn-id: http://skia.googlecode.com/svn/trunk@5322 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/effects/gradients/SkGradientShader.cpp b/src/effects/gradients/SkGradientShader.cpp
index 6bcc1ba..891b1cd 100644
--- a/src/effects/gradients/SkGradientShader.cpp
+++ b/src/effects/gradients/SkGradientShader.cpp
@@ -702,10 +702,11 @@
                                         const char* tName,
                                         const char* outputColor,
                                         const char* samplerName) {
-    builder->fSampleCoords.printf("vec2(%s, %s)", tName,
-        builder->getUniformVariable(fFSYUni).c_str());
-    builder->fComplexCoord = true;
-    builder->emitDefaultFetch(outputColor, samplerName);
+
+    builder->fFSCode.appendf("\tvec2 coord = vec2(%s, %s);\n",
+                             tName,
+                             builder->getUniformVariable(fFSYUni).c_str());
+    builder->emitTextureLookupAndModulate(outputColor, samplerName, "coord");
 }
 
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