Re-land: Enable GpuMemoryBuffers video frames on MacOS.

content/public/common/content_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 "content/public/common/content_switches.h"
 
 namespace switches {
 
 // The number of MSAA samples for canvas2D. Requires MSAA support by GPU to
 // have an effect. 0 disables MSAA.
@@ skipping 108 matching lines @@
 // Disables GPU hardware acceleration.  If software renderer is not in place,
 // then the GPU process won't launch.
 const char kDisableGpu[]                    = "disable-gpu";
 
 // Prevent the compositor from using its GPU implementation.
 const char kDisableGpuCompositing[]         = "disable-gpu-compositing";
 
 // Disable proactive early init of GPU process.
 const char kDisableGpuEarlyInit[]           = "disable-gpu-early-init";
 
+// Disable GpuMemoryBuffer backed VideoFrames.
+const char kDisableGpuMemoryBufferVideoFrames[] =
+    "disable-gpu-memory-buffer-video-frames";
+
 // Disable the limit on the number of times the GPU process may be restarted
 // This switch is intended only for tests.
 extern const char kDisableGpuProcessCrashLimit[] =
     "disable-gpu-process-crash-limit";
 
 // Disable GPU rasterization, i.e. rasterize on the CPU only.
 // Overrides the kEnableGpuRasterization and kForceGpuRasterization flags.
 const char kDisableGpuRasterization[]       = "disable-gpu-rasterization";
 
 // When using CPU rasterizing disable low resolution tiling. This uses
@@ skipping 853 matching lines @@
 const char kMemoryPressureThresholdsMb[] = "memory-pressure-thresholds-mb";
 
 // Enables the exporting of the tracing events to ETW. This is only supported on
 // Windows Vista and later.
 const char kTraceExportEventsToETW[] = "trace-export-events-to-etw";
 #endif
 
 // Don't dump stuff here, follow the same order as the header.
 
 }  // namespace switches