WebRtcStatsPerfBrowserTest added, a perf test using the new getStats

chrome/browser/media/webrtc/webrtc_browsertest_base.h

 // Copyright 2013 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.
 
 #ifndef CHROME_BROWSER_MEDIA_WEBRTC_WEBRTC_BROWSERTEST_BASE_H_
 #define CHROME_BROWSER_MEDIA_WEBRTC_WEBRTC_BROWSERTEST_BASE_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 25 matching lines @@
   static const char kVideoCallConstraints720p[];
   static const char kVideoCallConstraints1080p[];
   static const char kAudioVideoCallConstraints360p[];
   static const char kAudioVideoCallConstraints720p[];
 
   static const char kOkGotStream[];
   static const char kFailedWithPermissionDeniedError[];
   static const char kFailedWithPermissionDismissedError[];
 
   static const char kUseDefaultCertKeygen[];
+  static const char kUseDefaultAudioCodec[];
   static const char kUseDefaultVideoCodec[];
 
  protected:
   WebRtcTestBase();
   ~WebRtcTestBase() override;
 
   // These all require that the loaded page fulfills the public interface in
   // chrome/test/data/webrtc/getusermedia.js.
   // If an error is reported back from the getUserMedia call, these functions
   // will return false.
@@ skipping 111 matching lines @@
                                    const std::string& keygen_algorithm) const;
 
   void VerifyStatsGeneratedCallback(content::WebContents* tab) const;
   std::vector<std::string> VerifyStatsGeneratedPromise(
       content::WebContents* tab) const;
   scoped_refptr<content::TestStatsReportDictionary> GetStatsReportDictionary(
       content::WebContents* tab) const;
   std::vector<std::string> GetWhitelistedStatsTypes(
       content::WebContents* tab) const;
 
-  // Change the default video codec in the offer SDP.
+  // Change the default audio/video codec in the offer SDP.
+  void SetDefaultAudioCodec(content::WebContents* tab,
+                            const std::string& audio_codec) const;
   void SetDefaultVideoCodec(content::WebContents* tab,
                             const std::string& video_codec) const;
 
   // Add 'usedtx=1' to the offer SDP.
   void EnableOpusDtx(content::WebContents* tab) const;
 
  private:
   void CloseInfoBarInTab(content::WebContents* tab_contents,
                          infobars::InfoBar* infobar) const;
 
   std::string CreateLocalOffer(content::WebContents* from_tab) const;
   std::string CreateAnswer(std::string local_offer,
                            content::WebContents* to_tab) const;
   void ReceiveAnswer(const std::string& answer,
                      content::WebContents* from_tab) const;
   void GatherAndSendIceCandidates(content::WebContents* from_tab,
                                   content::WebContents* to_tab) const;
 
   infobars::InfoBar* GetUserMediaAndWaitForInfoBar(
       content::WebContents* tab_contents,
       const std::string& constraints) const;
 
   bool detect_errors_in_javascript_;
 
   DISALLOW_COPY_AND_ASSIGN(WebRtcTestBase);
 };
 
 #endif  // CHROME_BROWSER_MEDIA_WEBRTC_WEBRTC_BROWSERTEST_BASE_H_