[Media Router] Convert MediaRouter to use GURL for presentation URLs.

chrome/browser/media/router/media_sinks_observer_unittest.cc

 // Copyright 2016 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 "chrome/browser/media/router/media_source_helper.h"
 #include "chrome/browser/media/router/mock_media_router.h"
 #include "chrome/browser/media/router/test_helper.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace media_router {
 
 TEST(MediaSinksObserverTest, OriginMatching) {
   MockMediaRouter router;
-  MediaSource source(MediaSourceForPresentationUrl("https://presentation.com"));
+  MediaSource source(
+      MediaSourceForPresentationUrl(GURL("https://presentation.com")));
   GURL origin("https://origin.com");
   std::vector<GURL> origin_list;
   origin_list.push_back(origin);
   std::vector<MediaSink> sink_list;
   sink_list.push_back(MediaSink("sinkId", "Sink", MediaSink::IconType::CAST));
   MockMediaSinksObserver observer(&router, source, origin);
 
   EXPECT_CALL(observer, OnSinksReceived(SequenceEquals(sink_list)));
   observer.OnSinksUpdated(sink_list, origin_list);
 
   EXPECT_CALL(observer, OnSinksReceived(SequenceEquals(sink_list)));
   observer.OnSinksUpdated(sink_list, std::vector<GURL>());
 
   GURL origin2("https://differentOrigin.com");
   origin_list.clear();
   origin_list.push_back(origin2);
   EXPECT_CALL(observer, OnSinksReceived(testing::IsEmpty()));
   observer.OnSinksUpdated(sink_list, origin_list);
 }
 
 }  // namespace media_router