Revert of Disable a flaky test. (https://codereview.chromium.org/410453006/)

Reason for revert:
r284521 fixed the underlying problem.

Original issue's description:
> Disable a flaky test.
> 
> BUG=395726
> TEST=none
> TBR=miu
> 
> Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=284516

TBR=pkasting@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=395726

Review URL: https://codereview.chromium.org/410563002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@284581 0039d316-1c4b-4281-b951-d872f2087c98

chrome/browser/extensions/api/cast_streaming/cast_streaming_apitest.cc

@@ -295,13 +295,18 @@ class CastStreamingApiTestWithPixelOutput : public CastStreamingApiTest {
   }
 };
 
-// http://crbug.com/395726
+// http://crbug.com/177163
+#if defined(OS_WIN) && !defined(NDEBUG)
+#define MAYBE_EndToEnd DISABLED_TabsApi
+#else
+#define MAYBE_EndToEnd EndToEnd
+#endif  // defined(OS_WIN) && !defined(NDEBUG)
 // Tests the Cast streaming API and its basic functionality end-to-end.  An
 // extension subtest is run to generate test content, capture that content, and
 // use the API to send it out.  At the same time, this test launches an
 // in-process Cast receiver, listening on a localhost UDP socket, to receive the
 // content and check whether it matches expectations.
-IN_PROC_BROWSER_TEST_F(CastStreamingApiTestWithPixelOutput, DISABLED_EndToEnd) {
+IN_PROC_BROWSER_TEST_F(CastStreamingApiTestWithPixelOutput, MAYBE_EndToEnd) {
   scoped_ptr<net::UDPSocket> receive_socket(
       new net::UDPSocket(net::DatagramSocket::DEFAULT_BIND,
                          net::RandIntCallback(),