Add NativePixmapHandle type & interface for exporting them

ui/ozone/platform/drm/common/client_native_pixmap_factory_gbm.cc

 // Copyright 2015 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/ozone/platform/drm/common/client_native_pixmap_factory_gbm.h"
 
 #include "base/file_descriptor_posix.h"
+#include "ui/gfx/native_pixmap_handle_ozone.h"
 #include "ui/ozone/public/client_native_pixmap_factory.h"
 
 namespace ui {
 
 namespace {
 
+class ClientNativePixmapGbm : public ClientNativePixmap {
+ public:
+  ClientNativePixmapGbm() {}
+  ~ClientNativePixmapGbm() override {}
+
+  bool Map(void** data) override {
+    NOTREACHED();
+    return false;
+  }
+  void Unmap() override { NOTREACHED(); }
+  void GetStride(int* stride) const override { NOTREACHED(); }
+};
+
 class ClientNativePixmapFactoryGbm : public ClientNativePixmapFactory {
  public:
   ClientNativePixmapFactoryGbm() {}
   ~ClientNativePixmapFactoryGbm() override {}
 
   // ClientNativePixmapFactory:
   std::vector<Configuration> GetSupportedConfigurations() const override {
-    const Configuration kConfiguratioins[] = {
+    const Configuration kConfigurations[] = {
         {gfx::BufferFormat::BGRA_8888, gfx::BufferUsage::SCANOUT},
         {gfx::BufferFormat::RGBX_8888, gfx::BufferUsage::SCANOUT}};
     std::vector<Configuration> configurations(
-        kConfiguratioins, kConfiguratioins + arraysize(kConfiguratioins));
+        kConfigurations, kConfigurations + arraysize(kConfigurations));
     return configurations;
   }
-  scoped_ptr<ClientNativePixmap> ImportNativePixmap(
-      const base::FileDescriptor& handle,
+  scoped_ptr<ClientNativePixmap> ImportFromHandle(
+      const gfx::NativePixmapHandle& handle,
       const gfx::Size& size,
       gfx::BufferFormat format,
       gfx::BufferUsage usage) override {
-    NOTIMPLEMENTED();
-    return nullptr;
+    base::ScopedFD scoped_fd(handle.fd.fd);
+    return make_scoped_ptr<ClientNativePixmapGbm>(new ClientNativePixmapGbm);
   }
 
  private:
   DISALLOW_COPY_AND_ASSIGN(ClientNativePixmapFactoryGbm);
 };
 
 }  // namespace
 
 ClientNativePixmapFactory* CreateClientNativePixmapFactoryGbm() {
   return new ClientNativePixmapFactoryGbm();
 }
 
 }  // namespace ui