Add ShaderBuilders to EmitArgs and remove gettings from ProgBuilder.

src/effects/SkMorphologyImageFilter.cpp

Index: src/effects/SkMorphologyImageFilter.cpp
diff --git a/src/effects/SkMorphologyImageFilter.cpp b/src/effects/SkMorphologyImageFilter.cpp
index 251938e500c31feb6dd4df9ee71e7c88c87f8de9..fbc071fe5887b7f8464df407895ce560ef9c4bc7 100644
--- a/src/effects/SkMorphologyImageFilter.cpp
+++ b/src/effects/SkMorphologyImageFilter.cpp
@@ -297,16 +297,16 @@ void GrGLMorphologyEffect::emitCode(EmitArgs& args) {
                                             "Range");
     const char* range = args.fBuilder->getUniformCStr(fRangeUni);
 
-    GrGLSLFragmentBuilder* fsBuilder = args.fBuilder->getFragmentShaderBuilder();
-    SkString coords2D = fsBuilder->ensureFSCoords2D(args.fCoords, 0);
+    GrGLSLFragmentBuilder* fragBuilder = args.fFragBuilder;
+    SkString coords2D = fragBuilder->ensureFSCoords2D(args.fCoords, 0);
     const char* func;
     switch (fType) {
         case GrMorphologyEffect::kErode_MorphologyType:
-            fsBuilder->codeAppendf("\t\t%s = vec4(1, 1, 1, 1);\n", args.fOutputColor);
+            fragBuilder->codeAppendf("\t\t%s = vec4(1, 1, 1, 1);\n", args.fOutputColor);
             func = "min";
             break;
         case GrMorphologyEffect::kDilate_MorphologyType:
-            fsBuilder->codeAppendf("\t\t%s = vec4(0, 0, 0, 0);\n", args.fOutputColor);
+            fragBuilder->codeAppendf("\t\t%s = vec4(0, 0, 0, 0);\n", args.fOutputColor);
             func = "max";
             break;
         default:
@@ -329,30 +329,30 @@ void GrGLMorphologyEffect::emitCode(EmitArgs& args) {
     }
 
     // vec2 coord = coord2D;
-    fsBuilder->codeAppendf("\t\tvec2 coord = %s;\n", coords2D.c_str());
+    fragBuilder->codeAppendf("\t\tvec2 coord = %s;\n", coords2D.c_str());
     // coord.x -= radius * pixelSize;
-    fsBuilder->codeAppendf("\t\tcoord.%s -= %d.0 * %s; \n", dir, fRadius, pixelSizeInc);
+    fragBuilder->codeAppendf("\t\tcoord.%s -= %d.0 * %s; \n", dir, fRadius, pixelSizeInc);
     if (fUseRange) {
         // highBound = min(highBound, coord.x + (width-1) * pixelSize);
-        fsBuilder->codeAppendf("\t\tfloat highBound = min(%s.y, coord.%s + %f * %s);",
-                               range, dir, float(width() - 1), pixelSizeInc);
+        fragBuilder->codeAppendf("\t\tfloat highBound = min(%s.y, coord.%s + %f * %s);",
+                                 range, dir, float(width() - 1), pixelSizeInc);
         // coord.x = max(lowBound, coord.x);
-        fsBuilder->codeAppendf("\t\tcoord.%s = max(%s.x, coord.%s);", dir, range, dir);
+        fragBuilder->codeAppendf("\t\tcoord.%s = max(%s.x, coord.%s);", dir, range, dir);
     }
-    fsBuilder->codeAppendf("\t\tfor (int i = 0; i < %d; i++) {\n", width());
-    fsBuilder->codeAppendf("\t\t\t%s = %s(%s, ", args.fOutputColor, func, args.fOutputColor);
-    fsBuilder->appendTextureLookup(args.fSamplers[0], "coord");
-    fsBuilder->codeAppend(");\n");
+    fragBuilder->codeAppendf("\t\tfor (int i = 0; i < %d; i++) {\n", width());
+    fragBuilder->codeAppendf("\t\t\t%s = %s(%s, ", args.fOutputColor, func, args.fOutputColor);
+    fragBuilder->appendTextureLookup(args.fSamplers[0], "coord");
+    fragBuilder->codeAppend(");\n");
     // coord.x += pixelSize;
-    fsBuilder->codeAppendf("\t\t\tcoord.%s += %s;\n", dir, pixelSizeInc);
+    fragBuilder->codeAppendf("\t\t\tcoord.%s += %s;\n", dir, pixelSizeInc);
     if (fUseRange) {
         // coord.x = min(highBound, coord.x);
-        fsBuilder->codeAppendf("\t\t\tcoord.%s = min(highBound, coord.%s);", dir, dir);
+        fragBuilder->codeAppendf("\t\t\tcoord.%s = min(highBound, coord.%s);", dir, dir);
     }
-    fsBuilder->codeAppend("\t\t}\n");
+    fragBuilder->codeAppend("\t\t}\n");
     SkString modulate;
     GrGLSLMulVarBy4f(&modulate, args.fOutputColor, args.fInputColor);
-    fsBuilder->codeAppend(modulate.c_str());
+    fragBuilder->codeAppend(modulate.c_str());
 }
 
 void GrGLMorphologyEffect::GenKey(const GrProcessor& proc,