[Media Router] Handle multiple Presentation URLs when creating routes

chrome/browser/media/router/media_source_unittest.cc

Index: chrome/browser/media/router/media_source_unittest.cc
diff --git a/chrome/browser/media/router/media_source_unittest.cc b/chrome/browser/media/router/media_source_unittest.cc
index 470b5728b6c24f4572038c45b0882d08de00656e..a4e92148b06b1095f353021629b2bbde50095126 100644
--- a/chrome/browser/media/router/media_source_unittest.cc
+++ b/chrome/browser/media/router/media_source_unittest.cc
@@ -11,6 +11,14 @@ namespace media_router {
 TEST(MediaSourceTest, Constructor) {
   MediaSource source1("urn:x-com.google.cast:application:DEADBEEF");
   EXPECT_EQ("urn:x-com.google.cast:application:DEADBEEF", source1.id());
+  EXPECT_EQ(GURL(""), source1.url());
+}
+
+TEST(MediaSourceTest, ConstructorWithGURL) {
+  GURL test_url = GURL("http://google.com");
+  MediaSource source1(test_url);
+  EXPECT_EQ(test_url.spec(), source1.id());
+  EXPECT_EQ(test_url, source1.url());
 }
 
 }  // namespace media_router