Load and apply a vcgt table from an ICC file to the internal display

ui/ozone/platform/drm/gpu/drm_device.cc

Index: ui/ozone/platform/drm/gpu/drm_device.cc
diff --git a/ui/ozone/platform/drm/gpu/drm_device.cc b/ui/ozone/platform/drm/gpu/drm_device.cc
index fb5bbc8d4d080a2fcd397d1b3dc54801c853d3be..477bb6ca9a0b068807017f18f976326737f68859 100644
--- a/ui/ozone/platform/drm/gpu/drm_device.cc
+++ b/ui/ozone/platform/drm/gpu/drm_device.cc
@@ -504,4 +504,16 @@ bool DrmDevice::DropMaster() {
   return (drmDropMaster(file_.GetPlatformFile()) == 0);
 }
 
+bool DrmDevice::SetGammaRamp(uint32_t crtc_id,
+                             std::vector<uint16_t> r,
+                             std::vector<uint16_t> g,
+                             std::vector<uint16_t> b) {
+  DCHECK(file_.IsValid());
+  TRACE_EVENT0("drm", "DrmDevice::SetGamma");
+  return (drmModeCrtcSetGamma(file_.GetPlatformFile(), crtc_id, r.size(),
+                              const_cast<uint16_t*>(&r[0]),
+                              const_cast<uint16_t*>(&g[0]),
+                              const_cast<uint16_t*>(&b[0])) == 0);
+}
+
 }  // namespace ui