Creating framework for drawShadowedPicture

src/core/SkPicturePlayback.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkCanvas.h"
 #include "SkPatchUtils.h"
 #include "SkPictureData.h"
@@ skipping 599 matching lines @@
             SkScalar sx = reader->readScalar();
             SkScalar sy = reader->readScalar();
             canvas->skew(sx, sy);
         } break;
         case TRANSLATE: {
             SkScalar dx = reader->readScalar();
             SkScalar dy = reader->readScalar();
             canvas->translate(dx, dy);
         } break;
         case TRANSLATE_Z: {
+#ifdef SK_USE_SHADOWS
             SkScalar dz = reader->readScalar();
             canvas->translateZ(dz);
-        }
+#endif
+        } break;
         default:
             SkASSERTF(false, "Unknown draw type: %d", op);
     }
 }