Initial CL to create dummy GrShaderDataManager and thread it through

src/core/SkShader.cpp

Index: src/core/SkShader.cpp
diff --git a/src/core/SkShader.cpp b/src/core/SkShader.cpp
index f146345f9a37b007d6ca545f729bf9138986e6b1..ff6e97cb82d3724f683057910ce934a499efe667 100644
--- a/src/core/SkShader.cpp
+++ b/src/core/SkShader.cpp
@@ -215,7 +215,7 @@ SkShader::GradientType SkShader::asAGradient(GradientInfo* info) const {
 }
 
 bool SkShader::asFragmentProcessor(GrContext*, const SkPaint&, const SkMatrix&, const SkMatrix*,
-                                   GrColor*, GrFragmentProcessor**)  const {
+                                   GrColor*, GrShaderDataManager*, GrFragmentProcessor**)  const {
     return false;
 }
 
@@ -346,7 +346,7 @@ SkShader::GradientType SkColorShader::asAGradient(GradientInfo* info) const {
 #include "SkGr.h"
 
 bool SkColorShader::asFragmentProcessor(GrContext*, const SkPaint& paint, const SkMatrix&,
-                                        const SkMatrix*, GrColor* paintColor,
+                                        const SkMatrix*, GrColor* paintColor, GrShaderDataManager*,
                                         GrFragmentProcessor** fp) const {
     *fp = NULL;
     SkColor skColor = fColor;
@@ -358,7 +358,7 @@ bool SkColorShader::asFragmentProcessor(GrContext*, const SkPaint& paint, const
 #else
 
 bool SkColorShader::asFragmentProcessor(GrContext*, const SkPaint&, const SkMatrix&,
-                                        const SkMatrix*, GrColor*,
+                                        const SkMatrix*, GrColor*, GrShaderDataManager*,
                                         GrFragmentProcessor**) const {
     SkDEBUGFAIL("Should not call in GPU-less build");
     return false;