Ported media stream track enable-disable test to content module.

content/browser/media/webrtc_browsertest.cc

Index: content/browser/media/webrtc_browsertest.cc
diff --git a/content/browser/media/webrtc_browsertest.cc b/content/browser/media/webrtc_browsertest.cc
index 977891804e40be2a605563490c494e408814ee9a..5836cc5941bb2c783cda2ec7d44c38450f49fe3d 100644
--- a/content/browser/media/webrtc_browsertest.cc
+++ b/content/browser/media/webrtc_browsertest.cc
@@ -458,6 +458,8 @@ IN_PROC_BROWSER_TEST_F(WebrtcBrowserTest, MANUAL_CanSetupCallAndSendDtmf) {
       ExecuteJavascript("callAndSendDtmf('123,abc');"));
 }
 
+// TODO(phoglund): this test fails because the peer connection state will be
+// stable in the second negotiation round rather than have-local-offer.

[perkj_chrome, 2014/01/07 06:51:26]

Can you show me? Is the test wrong or an actual pc bug that should be filed? 

[phoglund_chromium, 2014/01/07 14:41:59]

I'm not sure. So what happens is that when we call negotiate() we do a
createOffer on the first peerconnection. The first negotiation round will move
it into the state have-local-offer, and as the call gets up the peerconnection
goes to stable. When we do the second negotiation round the peerconnection
doesn't go to have-local-offer but stays in stable. Not sure if that is a bug.
If it isn't, we need some logic in the test which says "expect the state to be
have-local-offer unless we have already negotiated once, in which case it should
be stable".

 IN_PROC_BROWSER_TEST_F(WebrtcBrowserTest,
                        DISABLED_CanMakeEmptyCallThenAddStreamsAndRenegotiate) {
   ASSERT_TRUE(embedded_test_server()->InitializeAndWaitUntilReady());
@@ -816,6 +818,16 @@ IN_PROC_BROWSER_TEST_F(WebrtcBrowserTest,
   ExpectTitle("OK");
 }
 
+IN_PROC_BROWSER_TEST_F(WebrtcBrowserTest, CallAndVerifyVideoMutingWorks) {
+  ASSERT_TRUE(embedded_test_server()->InitializeAndWaitUntilReady());
+
+  GURL url(embedded_test_server()->GetURL("/media/peerconnection-call.html"));
+  NavigateToURL(shell(), url);
+
+  EXPECT_TRUE(ExecuteJavascript("callAndEnsureVideoMutingWorks();"));
+  ExpectTitle("OK");
+}
+
 #if defined(OS_WIN) || (defined(OS_LINUX) && !defined(OS_CHROMEOS) && defined(ARCH_CPU_ARM_FAMILY))
 // Timing out on ARM linux bot: http://crbug.com/238490
 // Failing on Windows: http://crbug.com/331035