ozone: ClientPixmapManager passes VGEM fd from browser to renderer.

ui/ozone/common/stub_client_native_pixmap_factory.cc

Index: ui/ozone/common/stub_client_native_pixmap_factory.cc
diff --git a/ui/ozone/common/stub_client_native_pixmap_factory.cc b/ui/ozone/common/stub_client_native_pixmap_factory.cc
index 2b74cf81cce4733f873d9f1b959494fec3d884ae..b54c2038f39958d5ee75cdd70c08370689ad2be7 100644
--- a/ui/ozone/common/stub_client_native_pixmap_factory.cc
+++ b/ui/ozone/common/stub_client_native_pixmap_factory.cc
@@ -13,7 +13,11 @@ namespace {
 class StubClientNativePixmapFactory : public ClientNativePixmapFactory {
  public:
   StubClientNativePixmapFactory() {}
-  ~StubClientNativePixmapFactory() override {}
+  ~StubClientNativePixmapFactory() override {
+    if (virtual_device_.auto_close) {
+      base::ScopedFD closing_fd(virtual_device_.fd);
+    }
+  }
 
   // ClientNativePixmapFactory:
   std::vector<Configuration> GetSupportedConfigurations() const override {
@@ -29,6 +33,14 @@ class StubClientNativePixmapFactory : public ClientNativePixmapFactory {
   }
 
  private:
+  void Initialize(const base::FileDescriptor& virtual_device) override {
+    DCHECK_EQ(virtual_device_.fd, -1);
+    if (virtual_device.fd >= 0)
+      virtual_device_ = virtual_device;
+  }
+
+  base::FileDescriptor virtual_device_;
+
   DISALLOW_COPY_AND_ASSIGN(StubClientNativePixmapFactory);
 };