Added registerChild; transforms, textures, glKey automatically handled.

src/effects/SkColorMatrixFilter.cpp

Index: src/effects/SkColorMatrixFilter.cpp
diff --git a/src/effects/SkColorMatrixFilter.cpp b/src/effects/SkColorMatrixFilter.cpp
index d0bd1625acdfea2b4e176dd611f49046ad01c3d5..0f90349b2bdcb9c4b0706eb0a9ea6b15e8af04ec 100644
--- a/src/effects/SkColorMatrixFilter.cpp
+++ b/src/effects/SkColorMatrixFilter.cpp
@@ -394,11 +394,6 @@ public:
 
     const char* name() const override { return "Color Matrix"; }
 
-    virtual void getGLProcessorKey(const GrGLSLCaps& caps,
-                                   GrProcessorKeyBuilder* b) const override {
-        GLProcessor::GenKey(*this, caps, b);
-    }
-
     GrGLFragmentProcessor* createGLInstance() const override {
         return SkNEW_ARGS(GLProcessor, (*this));
     }
@@ -471,6 +466,11 @@ private:
         this->initClassID<ColorMatrixEffect>();
     }
 
+    virtual void onGetGLProcessorKey(const GrGLSLCaps& caps,
+                                     GrProcessorKeyBuilder* b) const override {
+        GLProcessor::GenKey(*this, caps, b);
+    }
+
     bool onIsEqual(const GrFragmentProcessor& s) const override {
         const ColorMatrixEffect& cme = s.cast<ColorMatrixEffect>();
         return cme.fMatrix == fMatrix;