Add NativePixmapDmabufStub to finalize glCreateImageCHROMIUM on Linux.

ui/gfx/linux/native_pixmap_dmabuf.cc

+// Copyright 2017 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 "ui/gfx/linux/native_pixmap_dmabuf.h"
+
+namespace gfx {
+
+NativePixmapDmaBuf::NativePixmapDmaBuf(const gfx::Size& size,
+                                       gfx::BufferFormat format,
+                                       const gfx::NativePixmapHandle& handle)
+    : size_(size), format_(format) {
+  for (auto& fd : handle.fds) {
+    fds_.emplace_back(fd.fd);
+  }
+
+  for (const auto& plane : handle.planes) {
+    planes_.push_back(plane);
+  }
+}
+
+NativePixmapDmaBuf::~NativePixmapDmaBuf() {}
+
+void* NativePixmapDmaBuf::GetEGLClientBuffer() const {
+  return nullptr;
+}
+
+bool NativePixmapDmaBuf::AreDmaBufFdsValid() const {
+  if (fds_.empty())
+    return false;
+
+  for (const auto& fd : fds_) {
+    if (fd.get() == -1)
+      return false;
+  }
+  return true;
+}
+
+size_t NativePixmapDmaBuf::GetDmaBufFdCount() const {
+  return fds_.size();
+}
+
+int NativePixmapDmaBuf::GetDmaBufFd(size_t index) const {
+  DCHECK_LT(index, fds_.size());
+  return fds_[index].get();
+}
+
+int NativePixmapDmaBuf::GetDmaBufPitch(size_t index) const {
+  DCHECK_LT(index, planes_.size());
+  return planes_[index].stride;
+}
+
+int NativePixmapDmaBuf::GetDmaBufOffset(size_t index) const {
+  DCHECK_LT(index, planes_.size());
+  return planes_[index].offset;
+}
+
+uint64_t NativePixmapDmaBuf::GetDmaBufModifier(size_t index) const {
+  DCHECK_LT(index, planes_.size());
+  return planes_[index].modifier;
+}
+
+gfx::BufferFormat NativePixmapDmaBuf::GetBufferFormat() const {
+  return format_;
+}
+
+gfx::Size NativePixmapDmaBuf::GetBufferSize() const {
+  return size_;
+}
+
+bool NativePixmapDmaBuf::ScheduleOverlayPlane(
+    gfx::AcceleratedWidget widget,
+    int plane_z_order,
+    gfx::OverlayTransform plane_transform,
+    const gfx::Rect& display_bounds,
+    const gfx::RectF& crop_rect) {
+  return false;
+}
+
+void NativePixmapDmaBuf::SetProcessingCallback(
+    const ProcessingCallback& processing_callback) {}
+
+gfx::NativePixmapHandle NativePixmapDmaBuf::ExportHandle() {
+  return gfx::NativePixmapHandle();
+}
+
+}  // namespace gfx