Mac Overlays: Wire up overlays on Mac

content/browser/gpu/browser_gpu_memory_buffer_manager.cc

 // Copyright 2014 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/browser/gpu/browser_gpu_memory_buffer_manager.h"
 
 #include "base/atomic_sequence_num.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/strings/stringprintf.h"
@@ skipping 87 matching lines @@
         {gfx::GpuMemoryBuffer::RGBA_8888, gfx::GpuMemoryBuffer::PERSISTENT_MAP},
         {gfx::GpuMemoryBuffer::BGRA_8888, gfx::GpuMemoryBuffer::MAP},
         {gfx::GpuMemoryBuffer::BGRA_8888,
          gfx::GpuMemoryBuffer::PERSISTENT_MAP}};
     for (auto& configuration : kNativeConfigurations) {
       if (IsGpuMemoryBufferFactoryConfigurationSupported(type, configuration))
         configurations.push_back(configuration);
     }
   }
 
-#if defined(USE_OZONE)
+#if defined(USE_OZONE) || defined(OS_MACOSX)
   const GpuMemoryBufferFactory::Configuration kScanoutConfigurations[] = {
       {gfx::GpuMemoryBuffer::BGRA_8888, gfx::GpuMemoryBuffer::SCANOUT},
       {gfx::GpuMemoryBuffer::RGBX_8888, gfx::GpuMemoryBuffer::SCANOUT}};
   for (auto& configuration : kScanoutConfigurations) {
     if (IsGpuMemoryBufferFactoryConfigurationSupported(type, configuration))
       configurations.push_back(configuration);
   }
 #endif
 
   return configurations;
@@ skipping 441 matching lines @@
   }
 
   GpuProcessHost* host = GpuProcessHost::FromID(buffer_it->second.gpu_host_id);
   if (host)
     host->DestroyGpuMemoryBuffer(id, client_id, sync_point);
 
   buffers.erase(buffer_it);
 }
 
 }  // namespace content