media: Use stl utilities from the base namespace

media/cast/net/cast_transport_config.h

Index: media/cast/net/cast_transport_config.h
diff --git a/media/cast/net/cast_transport_config.h b/media/cast/net/cast_transport_config.h
index 35729888c7fdd7e67641d79511bf7d5fea5bcf37..3ba95dce590c78cbbdbaf7c2deaecdd18182314d 100644
--- a/media/cast/net/cast_transport_config.h
+++ b/media/cast/net/cast_transport_config.h
@@ -106,10 +106,10 @@ struct EncodedFrame {
   // Convenience accessors to data as an array of uint8_t elements.
   const uint8_t* bytes() const {
     return reinterpret_cast<uint8_t*>(
-        string_as_array(const_cast<std::string*>(&data)));
+        base::string_as_array(const_cast<std::string*>(&data)));
   }
   uint8_t* mutable_bytes() {
-    return reinterpret_cast<uint8_t*>(string_as_array(&data));
+    return reinterpret_cast<uint8_t*>(base::string_as_array(&data));
   }
 
   // Copies all data members except |data| to |dest|.