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

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

Index: ui/ozone/platform/drm/gpu/drm_device.h
diff --git a/ui/ozone/platform/drm/gpu/drm_device.h b/ui/ozone/platform/drm/gpu/drm_device.h
index 546311c5e59589a61b5edaf3fbc168a52782e878..a7de069846a468d08529be0698611e7d2dd6ebf3 100644
--- a/ui/ozone/platform/drm/gpu/drm_device.h
+++ b/ui/ozone/platform/drm/gpu/drm_device.h
@@ -158,6 +158,13 @@ class OZONE_EXPORT DrmDevice : public base::RefCountedThreadSafe<DrmDevice> {
                                 uint32_t flags,
                                 const PageFlipCallback& callback);
 
+  // Set the gamma ramp for |crtc_id| to reflect the ramps in |r|, |g| and |b|.
+  virtual bool SetGammaRamp(uint32_t crtc_id,
+                            uint32_t size,
+                            uint16_t* r,
+                            uint16_t* g,
+                            uint16_t* b);
+
   // Drm master related
   virtual bool SetMaster();
   virtual bool DropMaster();