remoting: Use stl utilities from the base namespace

remoting/codec/audio_decoder_opus.cc

Index: remoting/codec/audio_decoder_opus.cc
diff --git a/remoting/codec/audio_decoder_opus.cc b/remoting/codec/audio_decoder_opus.cc
index 5d05d3c3c5005142f5febe46ef2cb2d9b27e11cb..5744487979efe0af4aed0eb548e198f4c533737d 100644
--- a/remoting/codec/audio_decoder_opus.cc
+++ b/remoting/codec/audio_decoder_opus.cc
@@ -107,13 +107,13 @@ std::unique_ptr<AudioPacket> AudioDecoderOpus::Decode(
   int buffer_pos = 0;
 
   for (int i = 0; i < packet->data_size(); ++i) {
-    int16_t* pcm_buffer =
-        reinterpret_cast<int16_t*>(string_as_array(decoded_data) + buffer_pos);
+    int16_t* pcm_buffer = reinterpret_cast<int16_t*>(
+        base::string_as_array(decoded_data) + buffer_pos);
     CHECK_LE(buffer_pos + max_frame_bytes,
              static_cast<int>(decoded_data->size()));
     std::string* frame = packet->mutable_data(i);
     unsigned char* frame_data =
-        reinterpret_cast<unsigned char*>(string_as_array(frame));
+        reinterpret_cast<unsigned char*>(base::string_as_array(frame));
     int result = opus_decode(decoder_, frame_data, frame->size(),
                              pcm_buffer, max_frame_samples, 0);
     if (result < 0) {