Revert of Temporarily disabling AppRTC test on windows.

chrome/browser/media/chrome_webrtc_apprtc_browsertest.cc

 // 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.
 
 #include "base/command_line.h"
 #include "base/files/file_enumerator.h"
 #include "base/path_service.h"
 #include "base/process/launch.h"
 #include "base/rand_util.h"
 #include "base/strings/stringprintf.h"
@@ skipping 208 matching lines @@
     firefox_ = base::LaunchProcess(command_line, base::LaunchOptions());
     return firefox_.IsValid();
   }
 
  private:
   base::Process dev_appserver_;
   base::Process firefox_;
   base::Process collider_server_;
 };
 
-#if defined(OS_WIN)
-// Disabled due to https://github.com/webrtc/apprtc/issues/48.
-#define MAYBE_MANUAL_WorksOnApprtc DISABLED_MANUAL_WorksOnApprtc
-#else
-#define MAYBE_MANUAL_WorksOnApprtc MANUAL_WorksOnApprtc
-#endif
-
-IN_PROC_BROWSER_TEST_F(WebRtcApprtcBrowserTest, MAYBE_MANUAL_WorksOnApprtc) {
+IN_PROC_BROWSER_TEST_F(WebRtcApprtcBrowserTest, MANUAL_WorksOnApprtc) {
   // Disabled on Win XP: http://code.google.com/p/webrtc/issues/detail?id=2703.
   if (OnWinXp())
     return;
 
   DetectErrorsInJavaScript();
   ASSERT_TRUE(LaunchApprtcInstanceOnLocalhost("9999"));
   ASSERT_TRUE(LaunchColliderOnLocalHost("http://localhost:9999", "8089"));
   while (!LocalApprtcInstanceIsUp())
     DVLOG(1) << "Waiting for AppRTC to come up...";
 
@@ skipping 40 matching lines @@
                        "&firefox_fake_device=1");
   content::WebContents* chrome_tab = OpenPageAndAcceptUserMedia(room_url);
 
   ASSERT_TRUE(LaunchFirefoxWithUrl(room_url));
 
   ASSERT_TRUE(WaitForCallToComeUp(chrome_tab));
 
   // Ensure Firefox manages to send video our way.
   ASSERT_TRUE(DetectRemoteVideoPlaying(chrome_tab));
 }