media: Change auto to not deduce raw pointers.

media/blink/webcontentdecryptionmodulesession_impl.cc

Index: media/blink/webcontentdecryptionmodulesession_impl.cc
diff --git a/media/blink/webcontentdecryptionmodulesession_impl.cc b/media/blink/webcontentdecryptionmodulesession_impl.cc
index d8ae46335f44b640d10b3d39eaddda15c24222ca..6dc9f5c6c0e7e553e04443bcd986c36c09ed8bd6 100644
--- a/media/blink/webcontentdecryptionmodulesession_impl.cc
+++ b/media/blink/webcontentdecryptionmodulesession_impl.cc
@@ -393,7 +393,7 @@ void WebContentDecryptionModuleSessionImpl::OnSessionKeysChange(
   blink::WebVector<blink::WebEncryptedMediaKeyInformation> keys(
       keys_info.size());
   for (size_t i = 0; i < keys_info.size(); ++i) {
-    const auto& key_info = keys_info[i];
+    auto* key_info = keys_info[i];
     keys[i].setId(blink::WebData(reinterpret_cast<char*>(&key_info->key_id[0]),
                                  key_info->key_id.size()));
     keys[i].setStatus(convertStatus(key_info->status));