libwebp: update snapshot to v0.2.0-rc1

third_party/libwebp/enc/layer.c

-// Copyright 2011 Google Inc.
+// Copyright 2011 Google Inc. All Rights Reserved.
 //
 // This code is licensed under the same terms as WebM:
 //  Software License Agreement:  http://www.webmproject.org/license/software/
 //  Additional IP Rights Grant:  http://www.webmproject.org/license/additional/
 // -----------------------------------------------------------------------------
 //
 // Enhancement layer (for YUV444/422)
 //
 // Author: Skal (pascal.massimino@gmail.com)
 
-#include <assert.h>
 #include <stdlib.h>
-#include "vp8enci.h"
+
+#include "./vp8enci.h"
 
 #if defined(__cplusplus) || defined(c_plusplus)
 extern "C" {
 #endif
 
-#ifdef WEBP_EXPERIMENTAL_FEATURES
-
-#endif    /* WEBP_EXPERIMENTAL_FEATURES */
-
 //------------------------------------------------------------------------------
 
 void VP8EncInitLayer(VP8Encoder* const enc) {
   enc->use_layer_ = (enc->pic_->u0 != NULL);
   enc->layer_data_size_ = 0;
   enc->layer_data_ = NULL;
   if (enc->use_layer_) {
     VP8BitWriterInit(&enc->layer_bw_, enc->mb_w_ * enc->mb_h_ * 3);
   }
 }
 
 void VP8EncCodeLayerBlock(VP8EncIterator* it) {
   (void)it;   // remove a warning
-#ifdef WEBP_EXPERIMENTAL_FEATURES
-#endif    /* WEBP_EXPERIMENTAL_FEATURES */
 }
 
 int VP8EncFinishLayer(VP8Encoder* const enc) {
   if (enc->use_layer_) {
     enc->layer_data_ = VP8BitWriterFinish(&enc->layer_bw_);
     enc->layer_data_size_ = VP8BitWriterSize(&enc->layer_bw_);
   }
   return 1;
 }
 
 void VP8EncDeleteLayer(VP8Encoder* enc) {
   free(enc->layer_data_);
 }
 
 #if defined(__cplusplus) || defined(c_plusplus)
 }    // extern "C"
 #endif