libwebp: update to 0.4.2-rc2

third_party/libwebp/enc/frame.c

 // Copyright 2011 Google Inc. All Rights Reserved.
 //
 // Use of this source code is governed by a BSD-style license
 // that can be found in the COPYING file in the root of the source
 // tree. An additional intellectual property rights grant can be found
 // in the file PATENTS. All contributing project authors may
 // be found in the AUTHORS file in the root of the source tree.
 // -----------------------------------------------------------------------------
 //
 //   frame coding and analysis
@@ skipping 490 matching lines @@
       case 2: *info = mb->segment_; break;
       case 3: *info = enc->dqm_[mb->segment_].quant_; break;
       case 4: *info = (mb->type_ == 1) ? it->preds_[0] : 0xff; break;
       case 5: *info = mb->uv_mode_; break;
       case 6: {
         const int b = (int)((it->luma_bits_ + it->uv_bits_ + 7) >> 3);
         *info = (b > 255) ? 255 : b; break;
       }
       case 7: *info = mb->alpha_; break;
       default: *info = 0; break;
-    };
+    }
   }
 #if SEGMENT_VISU  // visualize segments and prediction modes
   SetBlock(it->yuv_out_ + Y_OFF, mb->segment_ * 64, 16);
   SetBlock(it->yuv_out_ + U_OFF, it->preds_[0] * 64, 8);
   SetBlock(it->yuv_out_ + V_OFF, mb->uv_mode_ * 64, 8);
 #endif
 }
 
 static double GetPSNR(uint64_t mse, uint64_t size) {
   return (mse > 0 && size > 0) ? 10. * log10(255. * 255. * size / mse) : 99;
@@ skipping 323 matching lines @@
 
 int VP8EncTokenLoop(VP8Encoder* const enc) {
   (void)enc;
   return 0;   // we shouldn't be here.
 }
 
 #endif    // DISABLE_TOKEN_BUFFER
 
 //------------------------------------------------------------------------------