Image Capture Linux/CrOs, implement brightness, contrast, saturation and sharpness

third_party/WebKit/Source/modules/imagecapture/PhotoCapabilities.cpp

 // Copyright 2016 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 "modules/imagecapture/PhotoCapabilities.h"
 
 namespace blink {
 
 namespace {
 
@@ skipping 50 matching lines @@
   return emptyString();
 }
 
 DEFINE_TRACE(PhotoCapabilities) {
   visitor->trace(m_iso);
   visitor->trace(m_imageHeight);
   visitor->trace(m_imageWidth);
   visitor->trace(m_zoom);
   visitor->trace(m_exposureCompensation);
   visitor->trace(m_colorTemperature);
+  visitor->trace(m_brightness);
+  visitor->trace(m_contrast);
+  visitor->trace(m_saturation);
+  visitor->trace(m_sharpness);
 }
 
 }  // namespace blink