Add GpuMemoryBuffer support for DXGI handles.

gpu/ipc/host/gpu_memory_buffer_support.cc

 // Copyright 2016 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 "gpu/ipc/host/gpu_memory_buffer_support.h"
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "build/build_config.h"
 #include "gpu/ipc/common/gpu_memory_buffer_support.h"
@@ skipping 81 matching lines @@
   }
 
   switch (GetNativeGpuMemoryBufferType()) {
     case gfx::NATIVE_PIXMAP:
       // GPU memory buffers that are shared with the GL using EGLImages
       // require TEXTURE_EXTERNAL_OES.
       return GL_TEXTURE_EXTERNAL_OES;
     case gfx::IO_SURFACE_BUFFER:
       // IOSurface backed images require GL_TEXTURE_RECTANGLE_ARB.
       return GL_TEXTURE_RECTANGLE_ARB;
+    case gfx::DXGI_HANDLE:
     case gfx::SHARED_MEMORY_BUFFER:
     case gfx::EMPTY_BUFFER:
       break;
   }
   NOTREACHED();
   return GL_TEXTURE_2D;
 #else  // defined(USE_OZONE) || defined(OS_MACOSX)
   return GL_TEXTURE_2D;
 #endif
 }
 
 }  // namespace gpu