Change namespace from ui to gfx for NativePixmap related code

media/gpu/vaapi_drm_picture.cc

Index: media/gpu/vaapi_drm_picture.cc
diff --git a/media/gpu/vaapi_drm_picture.cc b/media/gpu/vaapi_drm_picture.cc
index f146b737000e98d65aac734be8ee61b7cd48f9de..b6e1f13731f76f636ec235ec48e8b0a81207506b 100644
--- a/media/gpu/vaapi_drm_picture.cc
+++ b/media/gpu/vaapi_drm_picture.cc
@@ -77,7 +77,7 @@ bool VaapiDrmPicture::Initialize() {
 
     gfx::BufferFormat format = pixmap_->GetBufferFormat();
 
-    scoped_refptr<ui::GLImageNativePixmap> image(new ui::GLImageNativePixmap(
+    scoped_refptr<gl::GLImageNativePixmap> image(new gl::GLImageNativePixmap(
         size_, BufferFormatToInternalFormat(format)));
     if (!image->Initialize(pixmap_.get(), format)) {
       LOG(ERROR) << "Failed to create GLImage";