Use explicit WebString conversion methods in content/renderer/media (unittests)

content/renderer/media/mock_media_stream_registry.cc

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/renderer/media/mock_media_stream_registry.h"
 
 #include <string>
 
 #include "base/strings/utf_string_conversions.h"
 #include "content/renderer/media/media_stream.h"
@@ skipping 49 matching lines @@
     const blink::WebMediaConstraints& constraints) {
   blink::WebMediaStreamSource blink_source;
   blink_source.initialize("mock video source id",
                           blink::WebMediaStreamSource::TypeVideo,
                           "mock video source name",
                           false /* remote */);
   MockMediaStreamVideoSource* native_source =
       new MockMediaStreamVideoSource(false /* manual get supported formats */);
   blink_source.setExtraData(native_source);
   blink::WebMediaStreamTrack blink_track;
-  blink_track.initialize(base::UTF8ToUTF16(track_id), blink_source);
+  blink_track.initialize(blink::WebString::fromUTF8(track_id), blink_source);
 
   MediaStreamVideoTrack* native_track = new MediaStreamVideoTrack(
       native_source, constraints, MediaStreamVideoSource::ConstraintsCallback(),
       true /* enabled */);
   blink_track.setTrackData(native_track);
   test_stream_.addTrack(blink_track);
 }
 
 void MockMediaStreamRegistry::AddVideoTrack(const std::string& track_id) {
   blink::WebMediaConstraints constraints;
@@ skipping 15 matching lines @@
 
   test_stream_.addTrack(blink_track);
 }
 
 blink::WebMediaStream MockMediaStreamRegistry::GetMediaStream(
     const std::string& url) {
   return (url != stream_url_) ? blink::WebMediaStream() : test_stream_;
 }
 
 }  // namespace content