add ImageGenerator::NewFromData to porting layer

src/image/SkImage_Raster.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkImage_Base.h"
 #include "SkImagePriv.h"
 #include "SkBitmap.h"
 #include "SkCanvas.h"
 #include "SkData.h"
-#include "SkDecodingImageGenerator.h"
+#include "SkImageGenerator.h"
 #include "SkSurface.h"
 
 class SkImage_Raster : public SkImage_Base {
 public:
     static bool ValidArgs(const Info& info, size_t rowBytes) {
         const int maxDimension = SK_MaxS32 >> 2;
         const size_t kMaxPixelByteSize = SK_MaxS32;
 
         if (info.width() <= 0 || info.height() <= 0) {
             return false;
@@ skipping 170 matching lines @@
     return SkNEW_ARGS(SkImage_Raster, (info, pr, rowBytes, props));
 }
 
 const SkPixelRef* SkBitmapImageGetPixelRef(const SkImage* image) {
     return ((const SkImage_Raster*)image)->getPixelRef();
 }
 
 bool SkImage_Raster::isOpaque() const {
     return fBitmap.isOpaque();
 }