WebRtcBrowserTest tests with RSA and ECDSA certificates.

chrome/browser/media/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_BROWSERTEST_BASE_H_
 #define CHROME_BROWSER_MEDIA_WEBRTC_BROWSERTEST_BASE_H_
 
 #include <string>
 
 #include "base/macros.h"
@@ skipping 77 matching lines @@
   content::WebContents* OpenPageAndAcceptUserMedia(const GURL& url) const;
 
   // Closes the last local stream acquired by the GetUserMedia* methods.
   void CloseLastLocalStream(content::WebContents* tab_contents) const;
 
   std::string ExecuteJavascript(const std::string& javascript,
                                 content::WebContents* tab_contents) const;
 
   // Sets up a peer connection in the tab and adds the current local stream
   // (which you can prepare by calling one of the GetUserMedia* methods above).
-  void SetupPeerconnectionWithLocalStream(content::WebContents* tab) const;
+  // Optionally, |certificate_keygen_algorithm| is JavaScript for an
+  // |AlgorithmIdentifier| to be used as parameter to
+  // |RTCPeerConnection.generateCertificate|. The resulting certificate will be
+  // used by the peer connection, otherwise a default certificate is used.
+  void SetupPeerconnectionWithLocalStream(
+      content::WebContents* tab,
+      std::string certificate_keygen_algorithm = "") const;

[phoglund_chromium, 2016/04/26 11:54:20]

I was sure default arguments were banned, but they appear to have been unbanned.
Alright, sure, let's go with this.

[hbos_chromium, 2016/04/27 11:19:03]

Acknowledged.

 
   // Same as above but does not add the local stream.
-  void SetupPeerconnectionWithoutLocalStream(content::WebContents* tab) const;
+  void SetupPeerconnectionWithoutLocalStream(
+      content::WebContents* tab,
+      std::string certificate_keygen_algorithm = "") const;
 
   // Exchanges offers and answers between the peer connections in the
   // respective tabs. Before calling this, you must have prepared peer
   // connections in both tabs and configured them as you like (for instance by
   // calling SetupPeerconnectionWithLocalStream).
   // If |video_codec| is a non-empty string, the SDP offer is modified (and SDP
   // answer verified) so that the specified video codec (case-sensitive name) is
   // used during the call instead of the default one.
   void NegotiateCall(content::WebContents* from_tab,
                      content::WebContents* to_tab,
@@ skipping 44 matching lines @@
   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_BROWSERTEST_BASE_H_