Fix C4334 (32-bit shift converted to 64-bit) warnings

media/filters/vp8_parser.cc

 // Copyright 2015 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.
 //
 // This file contains an implementation of a VP8 raw stream parser,
 // as defined in RFC 6386.
 
 #include "base/logging.h"
 #include "media/filters/vp8_parser.h"
 
@@ skipping 135 matching lines @@
 
   fhdr->segmentation_hdr = curr_segmentation_hdr_;
 
   if (!ParseLoopFilterHeader(keyframe))
     return false;
 
   fhdr->loopfilter_hdr = curr_loopfilter_hdr_;
 
   int log2_nbr_of_dct_partitions;
   BD_READ_UNSIGNED_OR_RETURN(2, &log2_nbr_of_dct_partitions);
-  fhdr->num_of_dct_partitions =
-      static_cast<size_t>(1 << log2_nbr_of_dct_partitions);
+  fhdr->num_of_dct_partitions = static_cast<size_t>(1)
+                                << log2_nbr_of_dct_partitions;
 
   if (!ParseQuantizationHeader(&fhdr->quantization_hdr))
     return false;
 
   if (keyframe) {
     BD_READ_BOOL_OR_RETURN(&fhdr->refresh_entropy_probs);
   } else {
     BD_READ_BOOL_OR_RETURN(&fhdr->refresh_golden_frame);
     BD_READ_BOOL_OR_RETURN(&fhdr->refresh_alternate_frame);
 
@@ skipping 695 matching lines @@
   fhdr->dct_partition_sizes[fhdr->num_of_dct_partitions - 1] = bytes_left;
 
   DVLOG(4) << "Control part size: " << fhdr->first_part_size;
   for (size_t i = 0; i < fhdr->num_of_dct_partitions; ++i)
     DVLOG(4) << "DCT part " << i << " size: " << fhdr->dct_partition_sizes[i];
 
   return true;
 }
 
 }  // namespace media