Revert of move annotations to canvas virtual

src/core/SkRemote_protocol.h

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef SkRemote_protocol_DEFINED
 #define SkRemote_protocol_DEFINED
 
@@ skipping 10 matching lines @@
         kStroke,
         kTextBlob,
         kPathEffect,
         kShader,
         kXfermode,
         kMaskFilter,
         kColorFilter,
         kRasterizer,
         kDrawLooper,
         kImageFilter,
+        kAnnotation,
     };
 
 }  // namespace SkRemote
 
 #endif//SkRemote_protocol_DEFINED