Add NativePixmapDmabufStub to finalize glCreateImageCHROMIUM on Linux.

gpu/ipc/service/gpu_memory_buffer_factory_native_pixmap.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 "gpu/ipc/service/gpu_memory_buffer_factory_native_pixmap.h"
 
 #include "ui/gfx/client_native_pixmap.h"
 #include "ui/gfx/native_pixmap.h"
 #include "ui/gl/gl_image_native_pixmap.h"
 
 #if defined(USE_OZONE)
 #include "ui/ozone/public/ozone_platform.h"
 #include "ui/ozone/public/surface_factory_ozone.h"
+#elif defined(OS_LINUX)
+#include "ui/gfx/linux/native_pixmap_dmabuf_stub.h"
 #endif
 
 namespace gpu {
 
 GpuMemoryBufferFactoryNativePixmap::GpuMemoryBufferFactoryNativePixmap() {}
 
 GpuMemoryBufferFactoryNativePixmap::~GpuMemoryBufferFactoryNativePixmap() {}
 
 gfx::GpuMemoryBufferHandle
 GpuMemoryBufferFactoryNativePixmap::CreateGpuMemoryBuffer(
@@ skipping 70 matching lines @@
   }
 
   // Create new pixmap from handle if one doesn't already exist.
   if (!pixmap) {
 #if defined(USE_OZONE)
     pixmap = ui::OzonePlatform::GetInstance()
                  ->GetSurfaceFactoryOzone()
                  ->CreateNativePixmapFromHandle(surface_handle, size, format,
                                                 handle.native_pixmap_handle);
 #else
-    // TODO(j.isorce): implement this to enable glCreateImageCHROMIUM on Linux.
-    NOTIMPLEMENTED();
+    pixmap = new ui::NativePixmapDmaBufStub(size, format,

[reveman, 2017/04/12 18:21:36]

should we be using make_scoped_refptr here to make it more explicit that this is
ref counted?

[Julien Isorce, 2017/04/13 12:46:02]

Sure, I will do it.

+                                            handle.native_pixmap_handle);
 #endif
     if (!pixmap.get()) {
       DLOG(ERROR) << "Failed to create pixmap from handle";
       return nullptr;
     }
   } else {
     for (const auto& fd : handle.native_pixmap_handle.fds) {
       // Close the fd by wrapping it in a ScopedFD and letting it fall
       // out of scope.
       base::ScopedFD scoped_fd(fd.fd);
@@ skipping 37 matching lines @@
     return nullptr;
   }
   return image;
 }
 
 unsigned GpuMemoryBufferFactoryNativePixmap::RequiredTextureType() {
   return GL_TEXTURE_EXTERNAL_OES;
 }
 
 }  // namespace gpu