Change ChunkDemuxerStream/SourceBufferStream memory limit to size_t type

media/filters/chunk_demuxer.h

Index: media/filters/chunk_demuxer.h
diff --git a/media/filters/chunk_demuxer.h b/media/filters/chunk_demuxer.h
index cdf2e524c812e906459ee7b7136f39520fd1e60a..827934693590f42f3d2c282c4ec64fb5475c515d 100644
--- a/media/filters/chunk_demuxer.h
+++ b/media/filters/chunk_demuxer.h
@@ -94,9 +94,7 @@ class MEDIA_EXPORT ChunkDemuxerStream : public DemuxerStream {
   TextTrackConfig text_track_config();
 
   // Sets the memory limit, in bytes, on the SourceBufferStream.
-  void set_memory_limit(int memory_limit) {
-    stream_->set_memory_limit(memory_limit);
-  }
+  void SetMemoryLimit(size_t memory_limit);
 
   bool supports_partial_append_window_trimming() const {
     return partial_append_window_trimming_enabled_;
@@ -277,7 +275,7 @@ class MEDIA_EXPORT ChunkDemuxer : public Demuxer {
   // Sets the memory limit on each stream of a specific type.
   // |memory_limit| is the maximum number of bytes each stream of type |type|
   // is allowed to hold in its buffer.
-  void SetMemoryLimits(DemuxerStream::Type type, int memory_limit);
+  void SetMemoryLimits(DemuxerStream::Type type, size_t memory_limit);
 
   // Returns the ranges representing the buffered data in the demuxer.
   // TODO(wolenetz): Remove this method once MediaSourceDelegate no longer