color: Read all displays' color profiles on Windows

ui/display/win/screen_win.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/display/win/screen_win.h"
 
 #include <windows.h>
 #include <shellscalingapi.h>
 
 #include <algorithm>
@@ skipping 193 matching lines @@
                               const gfx::Point& point) {
   gfx::Vector2d from_origin_vector(from_origin.x(), from_origin.y());
   gfx::Vector2d to_origin_vector(to_origin.x(), to_origin.y());
   gfx::Point scaled_relative_point(
       gfx::ScaleToFlooredPoint(point - from_origin_vector, scale_factor));
   return scaled_relative_point + to_origin_vector;
 }
 
 }  // namespace
 
-ScreenWin::ScreenWin() {
+ScreenWin::ScreenWin() : ScreenWin(true) {}
+
+ScreenWin::ScreenWin(bool initialize)
+    : color_profile_reader_(new ColorProfileReader(this)) {
   DCHECK(!g_screen_win_instance);
   g_screen_win_instance = this;
-  Initialize();
+  if (initialize)
+    Initialize();
 }
 
 ScreenWin::~ScreenWin() {
   DCHECK_EQ(g_screen_win_instance, this);
   g_screen_win_instance = nullptr;
 }
 
 // static
 gfx::Point ScreenWin::ScreenToDIPPoint(const gfx::Point& pixel_point) {
   const ScreenWinDisplay screen_win_display =
@@ skipping 222 matching lines @@
   return DIPToScreenRect(hwnd, dip_rect);
 }
 
 void ScreenWin::UpdateFromDisplayInfos(
     const std::vector<DisplayInfo>& display_infos) {
   screen_win_displays_ = DisplayInfosToScreenWinDisplays(display_infos);
   displays_ = ScreenWinDisplaysToDisplays(screen_win_displays_);
 }
 
 void ScreenWin::Initialize() {
+  color_profile_reader_->UpdateIfNeeded();
   singleton_hwnd_observer_.reset(
       new gfx::SingletonHwndObserver(
           base::Bind(&ScreenWin::OnWndProc, base::Unretained(this))));
   UpdateFromDisplayInfos(GetDisplayInfosFromSystem());
   RecordDisplayScaleFactors();
 }
 
 MONITORINFOEX ScreenWin::MonitorInfoFromScreenPoint(
     const gfx::Point& screen_point) const {
   POINT initial_loc = { screen_point.x(), screen_point.y() };
@@ skipping 22 matching lines @@
 }
 
 void ScreenWin::OnWndProc(HWND hwnd,
                           UINT message,
                           WPARAM wparam,
                           LPARAM lparam) {
   if (message != WM_DISPLAYCHANGE &&
     !(message == WM_SETTINGCHANGE && wparam == SPI_SETWORKAREA))
     return;
 
+  color_profile_reader_->UpdateIfNeeded();
   std::vector<Display> old_displays = std::move(displays_);
   UpdateFromDisplayInfos(GetDisplayInfosFromSystem());
   change_notifier_.NotifyDisplaysChanged(old_displays, displays_);
 }
 
+void ScreenWin::OnColorProfilesChanged() {
+  // TODO(ccameron): Re-build the display list here.
+}
+
 ScreenWinDisplay ScreenWin::GetScreenWinDisplayNearestHWND(HWND hwnd)
     const {
   return GetScreenWinDisplay(MonitorInfoFromWindow(hwnd,
                                                    MONITOR_DEFAULTTONEAREST));
 }
 
 ScreenWinDisplay ScreenWin::GetScreenWinDisplayNearestScreenRect(
     const gfx::Rect& screen_rect) const {
   return GetScreenWinDisplay(MonitorInfoFromScreenRect(screen_rect));
 }
@@ skipping 82 matching lines @@
         std::max(base::checked_cast<int>(scale_factor * 100), 0), 1000);
     if (!base::ContainsValue(unique_scale_factors, reported_scale)) {
       unique_scale_factors.push_back(reported_scale);
       UMA_HISTOGRAM_SPARSE_SLOWLY("UI.DeviceScale", reported_scale);
     }
   }
 }
 
 }  // namespace win
 }  // namespace display