extensions: Use stl utilities from the base namespace

extensions/renderer/api/display_source/wifi_display/wifi_display_audio_encoder_lpcm.cc

Index: extensions/renderer/api/display_source/wifi_display/wifi_display_audio_encoder_lpcm.cc
diff --git a/extensions/renderer/api/display_source/wifi_display/wifi_display_audio_encoder_lpcm.cc b/extensions/renderer/api/display_source/wifi_display/wifi_display_audio_encoder_lpcm.cc
index b7d3d9dc5208cf988db04c6aca1582d542c6af8a..6e6f16984228c46a72d756e7657acffb04749e21 100644
--- a/extensions/renderer/api/display_source/wifi_display/wifi_display_audio_encoder_lpcm.cc
+++ b/extensions/renderer/api/display_source/wifi_display/wifi_display_audio_encoder_lpcm.cc
@@ -154,7 +154,7 @@ void WiFiDisplayAudioEncoderLPCM::OnData(
       int sample_count = fifo_bus_->channels() * fifo_bus_->frames();
       data.resize(sample_count * sizeof(uint16_t));
       uint16_t* encoded_samples =
-          reinterpret_cast<uint16_t*>(string_as_array(&data));
+          reinterpret_cast<uint16_t*>(base::string_as_array(&data));
       fifo_bus_->ToInterleaved(fifo_bus_->frames(), kOutputBytesPerSample,
                                encoded_samples);
       for (int i = 0; i < sample_count; ++i)