Adding VideoCaptureDevice for Mac.

media/video/capture/mac/video_capture_device_unittest_helper_mac.mm

Index: media/video/capture/mac/video_capture_device_unittest_helper_mac.mm
diff --git a/media/video/capture/mac/video_capture_device_unittest_helper_mac.mm b/media/video/capture/mac/video_capture_device_unittest_helper_mac.mm
new file mode 100644
index 0000000000000000000000000000000000000000..f2c9b5c767d67d95f4e31b76a2b49ef820edc344
--- /dev/null
+++ b/media/video/capture/mac/video_capture_device_unittest_helper_mac.mm
@@ -0,0 +1,18 @@
+// Copyright (c) 2011 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 "media/video/capture/video_capture_device_unittest_helper.h"
+
+#import <Foundation/Foundation.h>
+
+namespace media {
+
+void ExecuteRunLoop() {
+  const int run_loop_timeout = 1;

[dmac, 2011/10/14 23:31:35]

are you sure 1 second is enough? See comment about using a MessageLoop in the
test file.

[mflodman_chromium_OOO, 2011/10/16 21:58:38]

File removed.

+  NSDate *loopUntil = [NSDate dateWithTimeIntervalSinceNow:run_loop_timeout];
+  [[NSRunLoop mainRunLoop] runMode: NSDefaultRunLoopMode

[dmac, 2011/10/14 23:31:35]

no space between : and NSDefaultRunLoopMode

[mflodman_chromium_OOO, 2011/10/16 21:58:38]

File removed.

+                        beforeDate:loopUntil];
+}
+
+}  // namespace