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

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

Index: ui/ozone/platform/drm/gpu/drm_gpu_platform_support.cc
diff --git a/ui/ozone/platform/drm/gpu/drm_gpu_platform_support.cc b/ui/ozone/platform/drm/gpu/drm_gpu_platform_support.cc
index 495307f85e4abcbfcbdd338b19c611adc4ca582f..728fb6a4d7db3048d42cf5098249bc96834a5c9a 100644
--- a/ui/ozone/platform/drm/gpu/drm_gpu_platform_support.cc
+++ b/ui/ozone/platform/drm/gpu/drm_gpu_platform_support.cc
@@ -213,6 +213,7 @@ bool DrmGpuPlatformSupport::OnMessageReceived(const IPC::Message& message) {
                       OnRelinquishDisplayControl)
   IPC_MESSAGE_HANDLER(OzoneGpuMsg_AddGraphicsDevice, OnAddGraphicsDevice)
   IPC_MESSAGE_HANDLER(OzoneGpuMsg_RemoveGraphicsDevice, OnRemoveGraphicsDevice)
+  IPC_MESSAGE_HANDLER(OzoneGpuMsg_SetGammaRamp, OnSetGammaRamp);
   IPC_MESSAGE_UNHANDLED(handled = false);
   IPC_END_MESSAGE_MAP()
 
@@ -291,6 +292,19 @@ void DrmGpuPlatformSupport::OnRemoveGraphicsDevice(const base::FilePath& path) {
   ndd_->RemoveGraphicsDevice(path);
 }
 
+void DrmGpuPlatformSupport::OnSetGammaRamp(int64_t id,
+                                           const GammaRampRGBData& lut) {
+  std::vector<uint16_t> r, g, b;
+
+  for (unsigned int i = 0; i < lut.size(); ++i) {
+    r.push_back(get<0>(lut[i]));
+    g.push_back(get<1>(lut[i]));
+    b.push_back(get<2>(lut[i]));
+  }
+
+  ndd_->SetGammaRamp(id, r, g, b);
+}
+
 void DrmGpuPlatformSupport::RelinquishGpuResources(
     const base::Closure& callback) {
   callback.Run();