Interface RTCRtpReceiver and RTCPeerConnection.getReceivers() added.

chrome/browser/media/webrtc/webrtc_rtp_browsertest.cc

+// Copyright 2017 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 "base/command_line.h"
+#include "chrome/browser/media/webrtc/webrtc_browsertest_base.h"
+#include "content/public/common/content_switches.h"
+#include "media/base/media_switches.h"
+
+static const char kMainWebrtcTestHtmlPage[] = "/webrtc/webrtc_jsep01_test.html";
+
+class WebRtcRtpBrowserTest : public WebRtcTestBase {
+ public:
+  WebRtcRtpBrowserTest() : left_tab_(nullptr), right_tab_(nullptr) {}
+
+  void SetUpInProcessBrowserTestFixture() override {
+    DetectErrorsInJavaScript();
+  }
+
+  void SetUpCommandLine(base::CommandLine* command_line) override {
+    command_line->AppendSwitch(switches::kUseFakeDeviceForMediaStream);
+
+    command_line->AppendSwitchASCII(switches::kEnableBlinkFeatures,
+                                    "RTCRtpReceiver");
+  }
+
+ protected:
+  void StartServerAndOpenTabs() {
+    ASSERT_TRUE(embedded_test_server()->Start());
+    left_tab_ = OpenTestPageAndGetUserMediaInNewTab(kMainWebrtcTestHtmlPage);
+    right_tab_ = OpenTestPageAndGetUserMediaInNewTab(kMainWebrtcTestHtmlPage);
+  }
+
+  content::WebContents* left_tab_;
+  content::WebContents* right_tab_;
+};
+
+IN_PROC_BROWSER_TEST_F(WebRtcRtpBrowserTest, GetReceivers) {
+  StartServerAndOpenTabs();
+
+  SetupPeerconnectionWithoutLocalStream(left_tab_);
+  CreateAndAddStreams(left_tab_, 3);
+
+  SetupPeerconnectionWithoutLocalStream(right_tab_);
+  CreateAndAddStreams(right_tab_, 1);
+
+  NegotiateCall(left_tab_, right_tab_);
+
+  VerifyRtpReceivers(left_tab_, 2);
+  VerifyRtpReceivers(right_tab_, 6);
+}