force readbuffer clients to use specialized readFoo for flattenables

src/core/SkImageFilter.cpp

 /*
  * Copyright 2012 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkImageFilter.h"
 
 #include "SkBitmap.h"
@@ skipping 50 matching lines @@
     for (int i = 0; i < fInputCount; i++) {
         SkSafeUnref(fInputs[i]);
     }
     delete[] fInputs;
 }
 
 SkImageFilter::SkImageFilter(SkFlattenableReadBuffer& buffer)
     : fInputCount(buffer.readInt()), fInputs(new SkImageFilter*[fInputCount]) {
     for (int i = 0; i < fInputCount; i++) {
         if (buffer.readBool()) {
-            fInputs[i] = static_cast<SkImageFilter*>(buffer.readFlattenable());
+            fInputs[i] = buffer.readImageFilter();
         } else {
             fInputs[i] = NULL;
         }
     }
 #ifdef SK_CROP_RECT_IS_INT
     buffer.readIRect(&fCropRect);
 #else
     buffer.readRect(&fCropRect.fRect);
     fCropRect.fFlags = buffer.readUInt();
 #endif
@@ skipping 124 matching lines @@
     return true;
 }
 
 bool SkImageFilter::asNewEffect(GrEffectRef**, GrTexture*, const SkMatrix&) const {
     return false;
 }
 
 bool SkImageFilter::asColorFilter(SkColorFilter**) const {
     return false;
 }