Add support for more advanced color correction

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

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/ozone/platform/drm/gpu/drm_display.h"
 
 #include <xf86drmMode.h>
 
 #include "base/macros.h"
 #include "ui/display/types/gamma_ramp_rgb_entry.h"
@@ skipping 152 matching lines @@
   if (!hdcp_property) {
     LOG(ERROR) << "'" << kContentProtection << "' property doesn't exist.";
     return false;
   }
 
   return drm_->SetProperty(
       connector_, hdcp_property->prop_id,
       GetContentProtectionValue(hdcp_property.get(), state));
 }
 
-void DrmDisplay::SetGammaRamp(const std::vector<GammaRampRGBEntry>& lut) {
-  if (!drm_->SetGammaRamp(crtc_, lut)) {
-    LOG(ERROR) << "Failed to set gamma ramp for display: crtc_id = " << crtc_
-               << " size = " << lut.size();
+void DrmDisplay::SetColorCorrection(
+    const std::vector<GammaRampRGBEntry>& degamma_lut,
+    const std::vector<GammaRampRGBEntry>& gamma_lut,
+    const std::vector<float>& correction_matrix) {
+  if (degamma_lut.size() == 0) {
+    if (!drm_->SetGammaRamp(crtc_, gamma_lut)) {
+      LOG(ERROR) << "Failed to set gamma ramp for display: crtc_id = " << crtc_
+                 << " size = " << gamma_lut.size();

[spang, 2016/02/22 18:57:51]

PLOG?

+    }
+  } else {
+    if (!drm_->SetColorCorrection(crtc_, degamma_lut, gamma_lut,
+                                  correction_matrix)) {
+      LOG(ERROR) << "Failed to set color correction for display: crtc_id = "
+                 << crtc_;
+    }
   }
 }
 
 }  // namespace ui