| Index: ui/gl/gl_switches.h | 
| diff --git a/ui/gl/gl_switches.h b/ui/gl/gl_switches.h | 
| index 5edf397857a25ada260d633cee111b17a0edb312..d2429cdbaed2ee6a5b89738e06ff88aed6d4a5ee 100644 | 
| --- a/ui/gl/gl_switches.h | 
| +++ b/ui/gl/gl_switches.h | 
| @@ -7,6 +7,7 @@ | 
|  | 
| // Defines all the command-line switches used by ui/gl. | 
|  | 
| +#include "base/feature_list.h" | 
| #include "ui/gl/gl_export.h" | 
|  | 
| namespace gl { | 
| @@ -62,4 +63,12 @@ GL_EXPORT extern const int kGLSwitchesCopiedFromGpuProcessHostNumSwitches; | 
|  | 
| }  // namespace switches | 
|  | 
| +namespace features { | 
| + | 
| +#if defined(OS_WIN) | 
| +GL_EXPORT extern const base::Feature kD3DVsync; | 
| +#endif  // defined(OS_WIN) | 
| + | 
| +}  // namespace features | 
| + | 
| #endif  // UI_GL_GL_SWITCHES_H_ | 
|  |