Refactor read and write buffers.

src/effects/SkLerpXfermode.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 "SkLerpXfermode.h"
 #include "SkColorPriv.h"
-#include "SkFlattenableBuffers.h"
+#include "SkReadBuffer.h"
+#include "SkWriteBuffer.h"
 #include "SkString.h"
 
 SkXfermode* SkLerpXfermode::Create(SkScalar scale) {
     int scale256 = SkScalarRoundToInt(scale * 256);
     if (scale256 >= 256) {
         return SkXfermode::Create(SkXfermode::kSrc_Mode);
     } else if (scale256 <= 0) {
         return SkXfermode::Create(SkXfermode::kDst_Mode);
     }
     return SkNEW_ARGS(SkLerpXfermode, (scale256));
 }
 
 SkLerpXfermode::SkLerpXfermode(unsigned scale256) : fScale256(scale256) {}
 
-SkLerpXfermode::SkLerpXfermode(SkFlattenableReadBuffer& buffer)
+SkLerpXfermode::SkLerpXfermode(SkReadBuffer& buffer)
     : INHERITED(buffer) {
     fScale256 = buffer.readUInt();
 }
 
-void SkLerpXfermode::flatten(SkFlattenableWriteBuffer& buffer) const {
+void SkLerpXfermode::flatten(SkWriteBuffer& buffer) const {
     this->INHERITED::flatten(buffer);
     buffer.writeUInt(fScale256);
 }
 
 void SkLerpXfermode::xfer32(SkPMColor dst[], const SkPMColor src[], int count,
                              const SkAlpha aa[]) const {
     const int scale = fScale256;
 
     if (aa) {
         for (int i = 0; i < count; ++i) {
@@ skipping 60 matching lines @@
             dst[i] = SkAlphaBlend(SkGetPackedA32(src[i]), dst[i], scale);
         }
     }
 }
 
 #ifdef SK_DEVELOPER
 void SkLerpXfermode::toString(SkString* str) const {
     str->printf("SkLerpXfermode: scale: %g", fScale256 / 256.0);
 }
 #endif