namespace switches {
-GL_EXPORT extern const char kEnableD3D11[];
GL_EXPORT extern const char kDisableD3D11[];
GL_EXPORT extern const char kDisableGpuVsync[];
GL_EXPORT extern const char kEnableGPUServiceLogging[];
GL_EXPORT extern const char kUseGL[];
GL_EXPORT extern const char kSwiftShaderPath[];
GL_EXPORT extern const char kTestGLLib[];
-GL_EXPORT extern const char kDisableGLDrawingForTests[];
GL_EXPORT extern const char kUseGpuInTests[];
+// These flags are used by the test harness code, not passed in by users.
+GL_EXPORT extern const char kDisableGLDrawingForTests[];
+GL_EXPORT extern const char kOverrideUseGLWithOSMesaForTests[];
+
GL_EXPORT extern const char* kGLSwitchesCopiedFromGpuProcessHost[];
GL_EXPORT extern const int kGLSwitchesCopiedFromGpuProcessHostNumSwitches;