cc: Plumb the monitor color profile to renderer for rasterization

ui/display/display.h

 // 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.
 
 #ifndef UI_DISPLAY_DISPLAY_H_
 #define UI_DISPLAY_DISPLAY_H_
 
 #include <stdint.h>
 
 #include "base/compiler_specific.h"
 #include "ui/display/display_export.h"
 #include "ui/gfx/geometry/rect.h"
+#include "ui/gfx/icc_profile.h"
 
 #if !defined(OS_IOS)
 #include "mojo/public/cpp/bindings/struct_traits.h"  // nogncheck
 #endif
 
 namespace display {
 
 #if !defined(OS_IOS)
 namespace mojom {
 class DisplayDataView;
@@ skipping 134 matching lines @@
 
   // True if there is an internal display.
   static bool HasInternalDisplay();
 
   // Maximum cursor size in native pixels.
   const gfx::Size& maximum_cursor_size() const { return maximum_cursor_size_; }
   void set_maximum_cursor_size(const gfx::Size& size) {
     maximum_cursor_size_ = size;
   }
 
+  // The full ICC profile of the display.
+  gfx::ICCProfile icc_profile() const { return icc_profile_; }
+  void set_icc_profile(const gfx::ICCProfile& icc_profile) {
+    icc_profile_ = icc_profile;
+  }
+
+  // The number of bits per pixel.
   int color_depth() const { return color_depth_; }

[ccameron, 2016/09/08 22:05:03]

These variables are:
- populated to something besides RGBA_8888 only on Android
- don't come from the ICC profile (and may be at odds with the ICC profile) on
Android
- correspond to WebScreenInfo data.
- it eventually becomes query-able in JS

So, we can't get rid of color_depth and depth_per_component :(

   void set_color_depth(int color_depth) {
     color_depth_ = color_depth;
   }
 
+  // The number of bits per color component (all color components are assumed to
+  // have the same number of bits).
   int depth_per_component() const { return depth_per_component_; }
   void set_depth_per_component(int depth_per_component) {
     depth_per_component_ = depth_per_component;
   }
 
  private:
   int64_t id_;
   gfx::Rect bounds_;
   gfx::Rect work_area_;
   float device_scale_factor_;
   Rotation rotation_;
   TouchSupport touch_support_;
   gfx::Size maximum_cursor_size_;
+  gfx::ICCProfile icc_profile_;
   int color_depth_;
   int depth_per_component_;
 
 #if !defined(OS_IOS)
   friend struct mojo::StructTraits<display::mojom::DisplayDataView,
                                    display::Display>;
 #endif
 };
 
 }  // namespace display
 
 #endif  // UI_DISPLAY_DISPLAY_H_