| Index: ui/compositor/compositor.cc | 
| diff --git a/ui/compositor/compositor.cc b/ui/compositor/compositor.cc | 
| index b057366d8561d0160dcc7e544406f316a363a514..66e6d06517812e1f941bf014f98f68adae74c3f1 100644 | 
| --- a/ui/compositor/compositor.cc | 
| +++ b/ui/compositor/compositor.cc | 
| @@ -141,8 +141,8 @@ Compositor::Compositor(ui::ContextFactory* context_factory, | 
| command_line->HasSwitch(cc::switches::kEnableCompositorPropertyTrees); | 
| settings.use_zero_copy = IsUIZeroCopyEnabled(); | 
|  | 
| -  settings.renderer_settings.use_rgba_4444_textures = | 
| -      command_line->HasSwitch(switches::kUIEnableRGBA4444Textures); | 
| +  if (command_line->HasSwitch(switches::kUIEnableRGBA4444Textures)) | 
| +    settings.renderer_settings.preferred_tile_format = cc::RGBA_4444; | 
|  | 
| // UI compositor always uses partial raster if not using zero-copy. Zero copy | 
| // doesn't currently support partial raster. | 
|  |