[blimp] Add SkPicture caching support.

blimp/client/feature/compositor/decoding_image_generator.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "blimp/client/feature/compositor/decoding_image_generator.h"
 
 #include "base/numerics/safe_conversions.h"
 #include "blimp/client/feature/compositor/blimp_image_decoder.h"
 #include "blimp/common/proto/blob_cache.pb.h"
 #include "third_party/libwebp/webp/decode.h"
@@ skipping 16 matching lines @@
   return new DecodingImageGenerator(
       SkImageInfo::MakeN32Premul(parsed_metadata.width(),
                                  parsed_metadata.height()),
       data->data(), data->size());
 }
 
 DecodingImageGenerator::DecodingImageGenerator(const SkImageInfo info,
                                                const void* data,
                                                size_t size)
     : SkImageGenerator(info) {
-  BlimpImageDecoder(data, size, &decoded_bitmap_);
+  DecodeBlimpImage(data, size, &decoded_bitmap_);
 }
 
 DecodingImageGenerator::~DecodingImageGenerator() {}
 
 bool DecodingImageGenerator::onGetPixels(const SkImageInfo& info,
                                          void* pixels,
                                          size_t rowBytes,
                                          SkPMColor table[],
                                          int* tableCount) {
   SkAutoLockPixels bitmapLock(decoded_bitmap_);
   if (decoded_bitmap_.getPixels() != pixels) {
     return decoded_bitmap_.copyPixelsTo(pixels, rowBytes * info.height(),
                                         rowBytes);
   }
   return true;
 }
 
 bool DecodingImageGenerator::onQueryYUV8(SkYUVSizeInfo* sizeInfo,
                                          SkYUVColorSpace* colorSpace) const {
   return false;
 }
 
 bool DecodingImageGenerator::onGetYUV8Planes(const SkYUVSizeInfo& sizeInfo,
                                              void* planes[3]) {
   return false;
 }
 
 }  // namespace client
 }  // namespace blimp