WebRtcBrowserTest tests with RSA and ECDSA certificates.

chrome/browser/media/webrtc_browsertest_base.cc

Index: chrome/browser/media/webrtc_browsertest_base.cc
diff --git a/chrome/browser/media/webrtc_browsertest_base.cc b/chrome/browser/media/webrtc_browsertest_base.cc
index 378c80d7887f9c605407c735b806e98d967f660e..7a5a7b5e39cb9a8f8ede8f09e4080f5f018fb91f 100644
--- a/chrome/browser/media/webrtc_browsertest_base.cc
+++ b/chrome/browser/media/webrtc_browsertest_base.cc
@@ -55,6 +55,8 @@ const char WebRtcTestBase::kAudioVideoCallConstraints360p[] =
 const char WebRtcTestBase::kAudioVideoCallConstraints720p[] =
    "{audio: true, video: {mandatory: {minWidth: 1280, maxWidth: 1280, "
    " minHeight: 720, maxHeight: 720}}}";
+const char WebRtcTestBase::kUseDefaultCertKeygen[] = "null";
+const char WebRtcTestBase::kUseDefaultVideoCodec[] = "";

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

I could default this to "null" too if you want before landing, but then we can't
distinguish between the value null and the string "null" (ofc that's a pointless
thing to be able to do) - see CreateLocalOffer.

[phoglund_chromium, 2016/04/27 13:23:12]

Hm, I think the video codec is used to construct perf bucket names, so don't do
that.

 
 namespace {
 
@@ -303,15 +305,21 @@ std::string WebRtcTestBase::ExecuteJavascript(
 }
 
 void WebRtcTestBase::SetupPeerconnectionWithLocalStream(
-    content::WebContents* tab) const {
-  SetupPeerconnectionWithoutLocalStream(tab);
+    content::WebContents* tab,
+    std::string certificate_keygen_algorithm) const {
+  SetupPeerconnectionWithoutLocalStream(tab, certificate_keygen_algorithm);
   EXPECT_EQ("ok-added", ExecuteJavascript("addLocalStream()", tab));
 }
 
 void WebRtcTestBase::SetupPeerconnectionWithoutLocalStream(
-    content::WebContents* tab) const {
+    content::WebContents* tab,
+    std::string certificate_keygen_algorithm) const {
+  if (certificate_keygen_algorithm.empty())

[phoglund_chromium, 2016/04/27 13:23:12]

Remove this if statement now that null is the default.

[hbos_chromium, 2016/04/27 15:09:08]

Done.

+    certificate_keygen_algorithm = "null";
+  std::string javascript = base::StringPrintf(
+      "preparePeerConnection(%s)", certificate_keygen_algorithm.c_str());
   EXPECT_EQ("ok-peerconnection-created",
-            ExecuteJavascript("preparePeerConnection()", tab));
+            ExecuteJavascript(javascript, tab));
 }
 
 std::string WebRtcTestBase::CreateLocalOffer(