Updated structures and functions for setting the max bitrate limit to take rtc::Optional<int>

webrtc/base/optional.h

Index: webrtc/base/optional.h
diff --git a/webrtc/base/optional.h b/webrtc/base/optional.h
index b8071e635876b1b42b4bb7d6b6c10b417d25ad7e..5c89c9c22f5e61abbf4fa1c5e4c3a0babb950972 100644
--- a/webrtc/base/optional.h
+++ b/webrtc/base/optional.h
@@ -13,7 +13,7 @@
 
 #include <algorithm>
 #include <utility>
-
+#include <ostream>
 #include "webrtc/base/checks.h"
 
 namespace rtc {
@@ -134,6 +134,18 @@ class Optional final {
   bool has_value_;
 };
 
+// Defines the operator to write Optional<T> to an output stream. Allows for
+// simplified logging of optional parameters.
+template <typename T>
+std::ostream& operator<<(std::ostream& stream, rtc::Optional<T> value) {
+  if (value) {
+    stream << *value;
+  } else {
+    stream << "<not set>";
+  }
+  return stream;
+}
+
 }  // namespace rtc
 
 #endif  // WEBRTC_BASE_OPTIONAL_H_