Change ChunkDemuxerStream/SourceBufferStream memory limit to size_t type

media/filters/source_buffer_stream_unittest.cc

Index: media/filters/source_buffer_stream_unittest.cc
diff --git a/media/filters/source_buffer_stream_unittest.cc b/media/filters/source_buffer_stream_unittest.cc
index 8270bd9ea68fb6f71a4e630829adab0d8ba3aa18..12b67c246e2218e66a1dfda9b638298b5abda44a 100644
--- a/media/filters/source_buffer_stream_unittest.cc
+++ b/media/filters/source_buffer_stream_unittest.cc
@@ -38,8 +38,8 @@ class SourceBufferStreamTest : public testing::Test {
     stream_.reset(new SourceBufferStream(video_config_, log_cb(), true));
   }
 
-  void SetMemoryLimit(int buffers_of_data) {
-    stream_->set_memory_limit(buffers_of_data * kDataSize);
+  void SetMemoryLimit(size_t buffers_of_data) {
+    stream_->SetMemoryLimit(buffers_of_data * kDataSize);
   }
 
   void SetStreamInfo(int frames_per_second, int keyframes_per_second) {