media: Change auto to not deduce raw pointers.

media/filters/source_buffer_stream.cc

Index: media/filters/source_buffer_stream.cc
diff --git a/media/filters/source_buffer_stream.cc b/media/filters/source_buffer_stream.cc
index 2f90bd74ea787bc4778035c97f99379e1a8a2451..61b2501330e28a359608eee6a9a3705b5454fc46 100644
--- a/media/filters/source_buffer_stream.cc
+++ b/media/filters/source_buffer_stream.cc
@@ -1410,7 +1410,7 @@ base::TimeDelta SourceBufferStream::GetBufferedDuration() const {
 
 size_t SourceBufferStream::GetBufferedSize() const {
   size_t ranges_size = 0;
-  for (const auto& range : ranges_)
+  for (auto* range : ranges_)
     ranges_size += range->size_in_bytes();
   return ranges_size;
 }