When HLS redirects are encountered recreate WebMediaPlayer.

content/browser/media/media_redirect_browsertest.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 "build/build_config.h"
+#include "content/browser/media/media_browsertest.h"
+#include "content/public/test/browser_test_utils.h"
+#include "content/public/test/content_browser_test_utils.h"
+#include "media/base/test_data_util.h"
+#include "net/test/embedded_test_server/embedded_test_server.h"
+#include "net/test/embedded_test_server/http_request.h"
+#include "net/test/embedded_test_server/http_response.h"
+
+namespace content {
+
+// Tests that WebMediaPlayer implementations choose the right playback engine
+// for content even when the playback extension is not known upfront.
+class MediaRedirectTest : public MediaBrowserTest {
+ public:
+  void RunRedirectTest(const std::string& media_file) {
+    std::unique_ptr<net::EmbeddedTestServer> http_test_server(
+        new net::EmbeddedTestServer());
+    http_test_server->ServeFilesFromSourceDirectory(media::GetTestDataPath());
+    CHECK(http_test_server->Start());
+
+    const GURL player_url =
+        http_test_server->GetURL("/player.html?video=" + kHiddenPath);
+    const GURL dest_url = http_test_server->GetURL("/" + media_file);
+
+    http_test_server->RegisterRequestHandler(
+        base::Bind(&MediaRedirectTest::RedirectResponseHandler,
+                   base::Unretained(this), dest_url));
+
+    // Run the normal media playback test.
+    EXPECT_EQ(kEnded, RunTest(player_url, kEnded));
+  }
+
+  std::unique_ptr<net::test_server::HttpResponse> RedirectResponseHandler(
+      const GURL& dest_url,
+      const net::test_server::HttpRequest& request) {
+    if (!base::StartsWith(request.relative_url, "/" + kHiddenPath,
+                          base::CompareCase::SENSITIVE)) {
+      return std::unique_ptr<net::test_server::HttpResponse>();
+    }
+
+    std::unique_ptr<net::test_server::BasicHttpResponse> http_response(
+        new net::test_server::BasicHttpResponse);
+    http_response->set_code(net::HTTP_TEMPORARY_REDIRECT);
+    http_response->AddCustomHeader("Location", dest_url.spec());
+    return std::move(http_response);
+  }
+
+ private:
+  const std::string kHiddenPath = "hidden_redirect";
+};
+
+IN_PROC_BROWSER_TEST_F(MediaRedirectTest, CanPlayHiddenWebm) {
+  RunRedirectTest("bear.webm");
+}
+
+#if defined(OS_ANDROID) && defined(USE_PROPRIETARY_CODECS)
+IN_PROC_BROWSER_TEST_F(MediaRedirectTest, CanPlayHiddenHls) {
+  RunRedirectTest("bear.m3u8");
+}
+#endif
+
+}  // namespace content