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

ui/ozone/platform/drm/test/mock_drm_device.cc

Index: ui/ozone/platform/drm/test/mock_drm_device.cc
diff --git a/ui/ozone/platform/drm/test/mock_drm_device.cc b/ui/ozone/platform/drm/test/mock_drm_device.cc
index 6af2c04bac8481796cc9d9eb4a3e05366d9941b9..3b153c66167511d902581f9379139b9ffa7e27f6 100644
--- a/ui/ozone/platform/drm/test/mock_drm_device.cc
+++ b/ui/ozone/platform/drm/test/mock_drm_device.cc
@@ -225,6 +225,13 @@ bool MockDrmDevice::CommitProperties(drmModePropertySet* properties,
   return false;
 }
 
+bool MockDrmDevice::SetGammaRamp(uint32_t crtc_id,
+                                 const std::vector<uint16_t>& r,
+                                 const std::vector<uint16_t>& g,
+                                 const std::vector<uint16_t>& b) {
+  return true;
+}
+
 void MockDrmDevice::RunCallbacks() {
   while (!callbacks_.empty()) {
     PageFlipCallback callback = callbacks_.front();