[Presentation API] Add support for multiple URLs in PresentationRequest on Media Router UI side

chrome/browser/media/router/presentation_request_unittest.cc

 // Copyright 2015 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/presentation_request.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace media_router {
 
 TEST(PresentationRequestTest, Equals) {
   PresentationRequest request1(RenderFrameHostId(1, 2),
-                               "http://presentationUrl",
+                               {"http://presentationUrl"},
                                GURL("http://frameUrl"));
 
   // Frame IDs are different.
   PresentationRequest request2(RenderFrameHostId(3, 4),
-                               "http://presentationUrl",
+                               {"http://presentationUrl"},
                                GURL("http://frameUrl"));
   EXPECT_FALSE(request1.Equals(request2));
 
   // Presentation URLs are different.
   PresentationRequest request3(RenderFrameHostId(1, 2),
-                               "http://anotherPresentationUrl",
+                               {"http://anotherPresentationUrl"},
                                GURL("http://frameUrl"));
   EXPECT_FALSE(request1.Equals(request3));
 
   // Frame URLs are different.
   PresentationRequest request4(RenderFrameHostId(1, 2),
-                               "http://presentationUrl",
+                               {"http://presentationUrl"},
                                GURL("http://anotherFrameUrl"));
   EXPECT_FALSE(request1.Equals(request4));
 
   PresentationRequest request5(RenderFrameHostId(1, 2),
-                               "http://presentationUrl",
+                               {"http://presentationUrl"},
                                GURL("http://frameUrl"));
   EXPECT_TRUE(request1.Equals(request5));
 }
 
 }  // namespace media_router