Allow toString capability to be toggled independent of developer mode

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 "SkReadBuffer.h"
@@ skipping 11 matching lines @@
 
 class SkArithmeticMode_scalar : public SkXfermode {
 public:
     static SkArithmeticMode_scalar* Create(SkScalar k1, SkScalar k2, SkScalar k3, SkScalar k4) {
         return SkNEW_ARGS(SkArithmeticMode_scalar, (k1, k2, k3, k4));
     }
 
     virtual void xfer32(SkPMColor dst[], const SkPMColor src[], int count,
                         const SkAlpha aa[]) const SK_OVERRIDE;
 
-    SK_DEVELOPER_TO_STRING()
+    SK_TO_STRING_OVERRIDE()
     SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkArithmeticMode_scalar)
 
 #if SK_SUPPORT_GPU
     virtual bool asNewEffect(GrEffectRef** effect, GrTexture* background) const SK_OVERRIDE;
 #endif
 
 private:
     SkArithmeticMode_scalar(SkScalar k1, SkScalar k2, SkScalar k3, SkScalar k4) {
         fK[0] = k1;
         fK[1] = k2;
@@ skipping 123 matching lines @@
                 int scale = a + (a >> 7);
                 r = SkAlphaMul(r, scale);
                 g = SkAlphaMul(g, scale);
                 b = SkAlphaMul(b, scale);
             }
             dst[i] = SkPackARGB32(a, r, g, b);
         }
     }
 }
 
-#ifdef SK_DEVELOPER
+#ifndef SK_IGNORE_TO_STRING
 void SkArithmeticMode_scalar::toString(SkString* str) const {
     str->append("SkArithmeticMode_scalar: ");
     for (int i = 0; i < 4; ++i) {
         str->appendScalar(fK[i]);
         if (i < 3) {
             str->append(" ");
         }
     }
 }
 #endif
@@ skipping 221 matching lines @@
                                              background);
     }
     return true;
 }
 
 #endif
 
 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_START(SkArithmeticMode)
     SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkArithmeticMode_scalar)
 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_END