[Presentation API / Media Router] Relax PresentationRequest URL check.

chrome/common/media_router/media_source_helper_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/common/media_router/media_source_helper.h"
 
 #include "chrome/common/media_router/media_source.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "url/gurl.h"
 
@@ skipping 28 matching lines @@
       MediaSourceForPresentationUrl(GURL(kPresentationUrl))));
 
   // Disallowed scheme
   EXPECT_FALSE(IsValidMediaSource(
       MediaSourceForPresentationUrl(GURL("file:///some/local/path"))));
   // Not a URL
   EXPECT_FALSE(IsValidMediaSource(
       MediaSourceForPresentationUrl(GURL("totally not a url"))));
 }
 
+TEST(MediaSourcesTest, IsValidPresentationUrl) {
+  EXPECT_FALSE(IsValidPresentationUrl(GURL()));
+  EXPECT_FALSE(IsValidPresentationUrl(GURL("unsupported-scheme://foo")));
+
+  EXPECT_TRUE(IsValidPresentationUrl(GURL("https://google.com")));
+  EXPECT_TRUE(IsValidPresentationUrl(GURL("cast://foo")));
+  EXPECT_TRUE(IsValidPresentationUrl(GURL("cast:foo")));
+}
+
 TEST(MediaSourcesTest, CanConnectToMediaSource) {
   EXPECT_TRUE(CanConnectToMediaSource(
       MediaSource(GURL("https://google.com/cast#__castAppId__=233637DE"))));
   // false scheme
   EXPECT_FALSE(CanConnectToMediaSource(
       MediaSource(GURL("http://google.com/cast#__castAppId__=233637DE"))));
   // false domain
   EXPECT_FALSE(CanConnectToMediaSource(
       MediaSource(GURL("https://google2.com/cast#__castAppId__=233637DE"))));
   // empty path
   EXPECT_FALSE(
       CanConnectToMediaSource(MediaSource(GURL("https://www.google.com"))));
   // false path
   EXPECT_FALSE(CanConnectToMediaSource(
       MediaSource(GURL("https://www.google.com/path"))));
 
   EXPECT_FALSE(CanConnectToMediaSource(MediaSource(GURL(""))));
 }
 
 }  // namespace media_router