Change namespace from ui to gfx for NativePixmap related code

media/gpu/vaapi_wrapper.h

Index: media/gpu/vaapi_wrapper.h
diff --git a/media/gpu/vaapi_wrapper.h b/media/gpu/vaapi_wrapper.h
index 6308f426634a072c42a65b115abe72d98ae9fad1..e3f9006846169f2aefd1f407c847422de468df94 100644
--- a/media/gpu/vaapi_wrapper.h
+++ b/media/gpu/vaapi_wrapper.h
@@ -36,7 +36,7 @@
 #endif  // USE_X11
 
 #if defined(USE_OZONE)
-namespace ui {
+namespace gfx {
 class NativePixmap;
 }
 #endif
@@ -118,12 +118,12 @@ class MEDIA_GPU_EXPORT VaapiWrapper
   // transferred to the caller. It differs from surfaces created using
   // CreateSurfaces(), where VaapiWrapper is the owner of the surfaces.
   scoped_refptr<VASurface> CreateVASurfaceForPixmap(
-      const scoped_refptr<ui::NativePixmap>& pixmap);
+      const scoped_refptr<gfx::NativePixmap>& pixmap);
 
   // Use VPP to process |source_pixmap| to |target_pixmap| with scaling and
   // color space conversion.
-  bool ProcessPixmap(const scoped_refptr<ui::NativePixmap>& source_pixmap,
-                     scoped_refptr<ui::NativePixmap> target_pixmap);
+  bool ProcessPixmap(const scoped_refptr<gfx::NativePixmap>& source_pixmap,
+                     scoped_refptr<gfx::NativePixmap> target_pixmap);
 
 #endif