Mac: Remove non-overlay IOSurface/NSCGLSurface path
These never shipped and never will.
Add a flag, --disable-mac-overlays, to force use of the CAOpenGLLayer
path. I will keep this around to help diagnose bugs, until the overlay
path bakes in stable.
BUG=515696
Review URL: https://codereview.chromium.org/1263143007
Cr-Commit-Position: refs/heads/master@{#341698}
diff --git a/ui/base/ui_base_switches.cc b/ui/base/ui_base_switches.cc
index 08a2609..ef5bf90 100644
--- a/ui/base/ui_base_switches.cc
+++ b/ui/base/ui_base_switches.cc
@@ -7,16 +7,13 @@
namespace switches {
#if defined(OS_MACOSX) && !defined(OS_IOS)
+// Fall back to using CAOpenGLLayers display content, instead of the IOSurface
+// based overlay display path.
+const char kDisableMacOverlays[] = "disable-mac-overlays";
+
// Disable use of cross-process CALayers to display content directly from the
// GPU process on Mac.
const char kDisableRemoteCoreAnimation[] = "disable-remote-core-animation";
-
-// Disable using the private NSCGLSurface API to draw content.
-const char kDisableNSCGLSurfaceApi[] = "disable-ns-cgl-surface-api";
-
-// Force all content to draw via the private NSCGLSurface API, even when there
-// exist performance, stability, or correctness reasons not to.
-const char kForceNSCGLSurfaceApi[] = "force-ns-cgl-surface-api";
#endif
// Disables use of DWM composition for top level windows.
