Disable Mac AVFoundation for WebRTC browser tests.

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/path_service.h"
 #include "base/process/launch.h"
 #include "base/rand_util.h"
 #include "base/strings/stringprintf.h"
 #include "base/win/windows_version.h"
@@ skipping 37 matching lines @@
       : dev_appserver_(base::kNullProcessHandle),
         firefox_(base::kNullProcessHandle) {
   }
 
   virtual void SetUpCommandLine(CommandLine* command_line) OVERRIDE {
     EXPECT_FALSE(command_line->HasSwitch(switches::kUseFakeUIForMediaStream));
 
     // The video playback will not work without a GPU, so force its use here.
     command_line->AppendSwitch(switches::kUseGpuInTests);
 
+#if defined(OS_MACOSX)
+    // TODO(mcasas): Remove this switch when ManyCam virtual video capture
+    // device starts supporting AVFoundation, see http://crbug.com/327618.
+    command_line->AppendSwitch(switches::kDisableAVFoundation);
+#endif
+
     CommandLine::ForCurrentProcess()->AppendSwitch(
         switches::kUseFakeDeviceForMediaStream);
   }
 
   virtual void TearDown() OVERRIDE {
     // Kill any processes we may have brought up.
     if (dev_appserver_ != base::kNullProcessHandle)
       base::KillProcess(dev_appserver_, 0, false);
     // TODO(phoglund): Find some way to shut down Firefox cleanly on Windows.
     if (firefox_ != base::kNullProcessHandle)
@@ skipping 176 matching lines @@
                                           base::RandInt(0, 65536)));
   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));
 }