Revert of Revert of content: Fix single process support for native GpuMemoryBuffers.

content/gpu/gpu_main.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 <stdlib.h>
 
 #if defined(OS_WIN)
 #include <dwmapi.h>
 #include <windows.h>
 #endif
@@ skipping 347 matching lines @@
     gpu_info.video_decode_accelerator_supported_profiles =
         content::GpuVideoDecodeAccelerator::GetSupportedProfiles();
     gpu_info.video_encode_accelerator_supported_profiles =
         content::GpuVideoEncodeAccelerator::GetSupportedProfiles();
   } else {
     dead_on_arrival = true;
   }
 
   logging::SetLogMessageHandler(NULL);
 
-  std::vector<gfx::GpuMemoryBufferType> supported_types;
-  GpuMemoryBufferFactory::GetSupportedTypes(&supported_types);
-  DCHECK(!supported_types.empty());
-  // Note: We always use the preferred type.
   scoped_ptr<GpuMemoryBufferFactory> gpu_memory_buffer_factory =
-      GpuMemoryBufferFactory::Create(supported_types[0]);
+      GpuMemoryBufferFactory::Create(
+          GpuChildThread::GetGpuMemoryBufferFactoryType());
 
   GpuProcess gpu_process;
 
   GpuChildThread* child_thread = new GpuChildThread(
       watchdog_thread.get(), dead_on_arrival, gpu_info, deferred_messages.Get(),
       gpu_memory_buffer_factory.get());
   while (!deferred_messages.Get().empty())
     deferred_messages.Get().pop();
 
   child_thread->Init(start_time);
@@ skipping 176 matching lines @@
     return true;
   }
 
   return false;
 }
 #endif  // defined(OS_WIN)
 
 }  // namespace.
 
 }  // namespace content