[blimp] Add SkPicture caching support.

cc/proto/image_serialization_processor.h

Index: cc/proto/image_serialization_processor.h
diff --git a/cc/proto/image_serialization_processor.h b/cc/proto/image_serialization_processor.h
index 2827eb4587c3daa2d1fea203536fc776bf800653..21d6c7c25f043dfacebb7fa59c118921e58b1c0e 100644
--- a/cc/proto/image_serialization_processor.h
+++ b/cc/proto/image_serialization_processor.h
@@ -5,23 +5,23 @@
 #ifndef CC_PROTO_IMAGE_SERIALIZATION_PROCESSOR_H_
 #define CC_PROTO_IMAGE_SERIALIZATION_PROCESSOR_H_
 
+#include "base/memory/ptr_util.h"
+#include "cc/proto/client_picture_cache.h"
+#include "cc/proto/engine_picture_cache.h"
 #include "third_party/skia/include/core/SkPicture.h"
 
 class SkPixelSerializer;
 
 namespace cc {
 
-// ImageSerializationProcessor provides functionality to serialize and
-// deserialize Skia images.
+// ImageSerializationProcessor provides functionality to serialize,
+// deserialize and cache Skia images.
 class ImageSerializationProcessor {
  public:
-  // The serializer returned from this function can be used to pass in to
-  // SkPicture::serialize(...) for serializing the SkPicture to a stream.
-  virtual SkPixelSerializer* GetPixelSerializer() = 0;
+  virtual ~ImageSerializationProcessor() {}
 
-  // Returns a function pointer valid to use for deserializing images when using
-  // SkPicture::CreateFromStream to create an SkPicture from a stream.
-  virtual SkPicture::InstallPixelRefProc GetPixelDeserializer() = 0;
+  virtual std::unique_ptr<EnginePictureCache> CreateEnginePictureCache() = 0;
+  virtual std::unique_ptr<ClientPictureCache> CreateClientPictureCache() = 0;
 };
 
 }  // namespace cc