color: Add command line flag to force output color space

ui/gfx/color_space.cc

 // Copyright (c) 2012 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/gfx/color_space.h"
 
 #include <map>
 #include <sstream>
 
 #include "base/lazy_instance.h"
@@ skipping 426 matching lines @@
       primaries.fRX = 0.630f;
       primaries.fRY = 0.340f;
       primaries.fGX = 0.310f;
       primaries.fGY = 0.595f;
       primaries.fBX = 0.155f;
       primaries.fBY = 0.070f;
       primaries.fWX = 0.3127f;
       primaries.fWY = 0.3290f;
       break;
 
+    case ColorSpace::PrimaryID::APPLE_GENERIC_RGB:
+      primaries.fRX = 0.63002f;
+      primaries.fRY = 0.34000f;
+      primaries.fGX = 0.29505f;
+      primaries.fGY = 0.60498f;
+      primaries.fBX = 0.15501f;
+      primaries.fBY = 0.07701f;
+      primaries.fWX = 0.3127f;
+      primaries.fWY = 0.3290f;
+      break;
+
     case ColorSpace::PrimaryID::FILM:
       primaries.fRX = 0.681f;
       primaries.fRY = 0.319f;
       primaries.fGX = 0.243f;
       primaries.fGY = 0.692f;
       primaries.fBX = 0.145f;
       primaries.fBY = 0.049f;
       primaries.fWX = 0.310f;
       primaries.fWY = 0.136f;
       break;
@@ skipping 83 matching lines @@
       fn->fB = custom_transfer_params_[1];
       fn->fC = custom_transfer_params_[2];
       fn->fD = custom_transfer_params_[3];
       fn->fE = custom_transfer_params_[4];
       fn->fF = custom_transfer_params_[5];
       fn->fG = custom_transfer_params_[6];
       return true;
     case ColorSpace::TransferID::LINEAR:
     case ColorSpace::TransferID::LINEAR_HDR:
       return true;
+    case ColorSpace::TransferID::GAMMA18:
+      fn->fG = 1.801f;
+      return true;
     case ColorSpace::TransferID::GAMMA22:
       fn->fG = 2.2f;
       return true;
     case ColorSpace::TransferID::GAMMA24:
       fn->fG = 2.4f;
       return true;
     case ColorSpace::TransferID::GAMMA28:
       fn->fG = 2.8f;
       return true;
     case ColorSpace::TransferID::BT709:
@@ skipping 173 matching lines @@
       matrix->postTranslate(-16.0f/219.0f, -15.5f/224.0f, -15.5f/224.0f);
       break;
   }
 }
 
 std::ostream& operator<<(std::ostream& out, const ColorSpace& color_space) {
   return out << color_space.ToString();
 }
 
 }  // namespace gfx