Remove deprecated QTKit Video Capture Support

media/base/media_switches.cc

 // Copyright (c) 2012 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 "build/build_config.h"
 #include "media/base/media_switches.h"
 
 namespace switches {
 
 // Allow users to specify a custom buffer size for debugging purpose.
@@ skipping 25 matching lines @@
 const char kAlsaInputDevice[] = "alsa-input-device";
 // The Alsa device to use when opening an audio stream.
 const char kAlsaOutputDevice[] = "alsa-output-device";
 #endif
 
 // Use GpuMemoryBuffers for Video Capture when this is an option for the device.
 // Experimental, see http://crbug.com/503835 and http://crbug.com/440843.
 const char kUseGpuMemoryBuffersForCapture[] =
     "use-gpu-memory-buffers-for-capture";
 
-#if defined(OS_MACOSX)
-// AVFoundation is available in versions 10.7 and onwards, and is to be used
-// http://crbug.com/288562 for both audio and video device monitoring and for
-// video capture. Being a dynamically loaded NSBundle and library, it hits the
-// Chrome startup time (http://crbug.com/311325 and http://crbug.com/311437);
-// for experimentation purposes, in particular library load time issue, the
-// usage of this library can be enabled by using this flag.
-const char kEnableAVFoundation[] = "enable-avfoundation";
-
-// QTKit is the media capture API predecessor to AVFoundation, available up and
-// until Mac OS X 10.9 (despite being deprecated in this last one). This flag
-// is used for troubleshooting and testing, and forces QTKit in builds and
-// configurations where AVFoundation would be used otherwise.
-const char kForceQTKit[] = "force-qtkit";
-#endif
-
 #if defined(OS_WIN)
 // Use exclusive mode audio streaming for Windows Vista and higher.
 // Leads to lower latencies for audio streams which uses the
 // AudioParameters::AUDIO_PCM_LOW_LATENCY audio path.
 // See http://msdn.microsoft.com/en-us/library/windows/desktop/dd370844.aspx
 // for details.
 const char kEnableExclusiveAudio[] = "enable-exclusive-audio";
 
 // Force the use of MediaFoundation for video capture. This is only supported in
 // Windows 7 and above. Used, like |kForceDirectShowVideoCapture|, to
@@ skipping 60 matching lines @@
 
 }  // namespace switches
 
 namespace media {
 
 // Use shared block-based buffering for media.
 const base::Feature kUseNewMediaCache{"use-new-media-cache",
                                       base::FEATURE_DISABLED_BY_DEFAULT};
 
 }  // namespace media