[blimp] Add SkPicture caching support.

cc/blimp/image_serialization_processor.h

+// 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.
+
+#ifndef CC_BLIMP_IMAGE_SERIALIZATION_PROCESSOR_H_
+#define CC_BLIMP_IMAGE_SERIALIZATION_PROCESSOR_H_
+
+#include "base/memory/ptr_util.h"
+#include "cc/blimp/client_picture_cache.h"
+#include "cc/blimp/engine_picture_cache.h"
+#include "third_party/skia/include/core/SkPicture.h"
+
+class SkPixelSerializer;
+
+namespace cc {
+
+// ImageSerializationProcessor provides functionality to serialize,
+// deserialize and cache Skia images.
+class ImageSerializationProcessor {
+ public:
+  virtual ~ImageSerializationProcessor() {}
+
+  virtual std::unique_ptr<EnginePictureCache> CreateEnginePictureCache() = 0;
+  virtual std::unique_ptr<ClientPictureCache> CreateClientPictureCache() = 0;
+};
+
+}  // namespace cc
+
+#endif  // CC_BLIMP_IMAGE_SERIALIZATION_PROCESSOR_H_