Remove GrContext from SkXfermode::[Aa]sNewEffectOrCoeff() and all subclasses,

src/effects/SkArithmeticMode.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkArithmeticMode.h"
 #include "SkColorPriv.h"
 #include "SkFlattenableBuffers.h"
@@ skipping 18 matching lines @@
         fK[3] = k4;
     }
 
     virtual void xfer32(SkPMColor dst[], const SkPMColor src[], int count,
                         const SkAlpha aa[]) const SK_OVERRIDE;
 
     SK_DEVELOPER_TO_STRING()
     SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkArithmeticMode_scalar)
 
 #if SK_SUPPORT_GPU
-    virtual bool asNewEffectOrCoeff(GrContext*, GrEffectRef** effect, Coeff*, Coeff*, GrTexture* background) const SK_OVERRIDE;
+    virtual bool asNewEffectOrCoeff(GrEffectRef** effect, Coeff*, Coeff*, GrTexture* background) const SK_OVERRIDE;
 #endif
 
 private:
     SkArithmeticMode_scalar(SkFlattenableReadBuffer& buffer) : INHERITED(buffer) {
         fK[0] = buffer.readScalar();
         fK[1] = buffer.readScalar();
         fK[2] = buffer.readScalar();
         fK[3] = buffer.readScalar();
     }
 
@@ skipping 351 matching lines @@
     float k2 = rand->nextF();
     float k3 = rand->nextF();
     float k4 = rand->nextF();
 
     static AutoEffectUnref gEffect(SkNEW_ARGS(GrArithmeticEffect, (k1, k2, k3, k4, NULL)));
     return CreateEffectRef(gEffect);
 }
 
 GR_DEFINE_EFFECT_TEST(GrArithmeticEffect);
 
-bool SkArithmeticMode_scalar::asNewEffectOrCoeff(GrContext*,
-                                                 GrEffectRef** effect,
+bool SkArithmeticMode_scalar::asNewEffectOrCoeff(GrEffectRef** effect,
                                                  Coeff*,
                                                  Coeff*,
                                                  GrTexture* background) const {
     if (effect) {
         *effect = GrArithmeticEffect::Create(SkScalarToFloat(fK[0]),
                                              SkScalarToFloat(fK[1]),
                                              SkScalarToFloat(fK[2]),
                                              SkScalarToFloat(fK[3]),
                                              background);
     }
     return true;
 }
 
 #endif
 
 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_START(SkArithmeticMode)
     SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkArithmeticMode_scalar)
 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_END