Change namespace from ui to gfx for NativePixmap related code

content/renderer/renderer_main.cc

Index: content/renderer/renderer_main.cc
diff --git a/content/renderer/renderer_main.cc b/content/renderer/renderer_main.cc
index 59897a5060785b774733cfe10bcef6b73aae593f..99a42094feaa839659a7401c6339afd4f2903780 100644
--- a/content/renderer/renderer_main.cc
+++ b/content/renderer/renderer_main.cc
@@ -76,7 +76,7 @@ static void HandleRendererErrorTestParameters(
 }
 
 #if defined(USE_OZONE)
-base::LazyInstance<std::unique_ptr<ui::ClientNativePixmapFactory>>::
+base::LazyInstance<std::unique_ptr<gfx::ClientNativePixmapFactory>>::
     DestructorAtExit g_pixmap_factory = LAZY_INSTANCE_INITIALIZER;
 #endif
 
@@ -120,7 +120,7 @@ int RendererMain(const MainFunctionParams& parameters) {
 
 #if defined(USE_OZONE)
   g_pixmap_factory.Get() = ui::CreateClientNativePixmapFactoryOzone();
-  ui::ClientNativePixmapFactory::SetInstance(g_pixmap_factory.Get().get());
+  gfx::ClientNativePixmapFactory::SetInstance(g_pixmap_factory.Get().get());
 #endif
 
   // This function allows pausing execution using the --renderer-startup-dialog