[blimp] Add SkPicture caching support.

blimp/engine/renderer/engine_image_serialization_processor.cc

Index: blimp/engine/renderer/engine_image_serialization_processor.cc
diff --git a/blimp/engine/renderer/engine_image_serialization_processor.cc b/blimp/engine/renderer/engine_image_serialization_processor.cc
index cc792dd582f788ac95a345de96280a897a7bf324..fd2ab5ad46f152806db6206b4b409fbd2f0fdfc8 100644
--- a/blimp/engine/renderer/engine_image_serialization_processor.cc
+++ b/blimp/engine/renderer/engine_image_serialization_processor.cc
@@ -5,6 +5,7 @@
 #include "blimp/engine/renderer/engine_image_serialization_processor.h"
 
 #include <stddef.h>
+#include <memory>
 #include <set>
 #include <string>
 #include <vector>
@@ -15,11 +16,14 @@
 #include "base/trace_event/trace_event.h"
 #include "blimp/common/blob_cache/id_util.h"
 #include "blimp/common/proto/blob_cache.pb.h"
+#include "blimp/engine/renderer/blimp_engine_picture_cache.h"
+#include "cc/proto/picture_cache.h"
 #include "content/public/renderer/render_frame.h"
 #include "third_party/libwebp/webp/encode.h"
 #include "third_party/skia/include/core/SkData.h"
 #include "third_party/skia/include/core/SkPicture.h"
 #include "third_party/skia/include/core/SkPixelSerializer.h"
+#include "third_party/skia/include/core/SkStream.h"
 #include "third_party/skia/include/core/SkUnPreMultiply.h"
 
 namespace blimp {
@@ -222,12 +226,13 @@ EngineImageSerializationProcessor::EngineImageSerializationProcessor(
 
 EngineImageSerializationProcessor::~EngineImageSerializationProcessor() {}
 
-SkPixelSerializer* EngineImageSerializationProcessor::GetPixelSerializer() {
-  return pixel_serializer_.get();
+std::unique_ptr<cc::EnginePictureCache>
+EngineImageSerializationProcessor::CreateEnginePictureCache() {
+  return base::WrapUnique(new BlimpEnginePictureCache(pixel_serializer_.get()));
 }
 
-SkPicture::InstallPixelRefProc
-EngineImageSerializationProcessor::GetPixelDeserializer() {
+std::unique_ptr<cc::ClientPictureCache>
+EngineImageSerializationProcessor::CreateClientPictureCache() {
   return nullptr;
 }