color: Read all displays' color profiles on Windows

ui/display/win/screen_win.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_WIN_SCREEN_WIN_H_
 #define UI_DISPLAY_WIN_SCREEN_WIN_H_
 
 #include <windows.h>
 
 #include <memory>
 #include <vector>
 
 #include "base/macros.h"
 #include "ui/display/display_change_notifier.h"
 #include "ui/display/display_export.h"
 #include "ui/display/screen.h"
+#include "ui/display/win/color_profile_reader.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/gfx/win/singleton_hwnd_observer.h"
 
 namespace gfx {
 class Display;
 class Point;
 class Rect;
 class Size;
 }   // namespace gfx
 
 namespace display {
 namespace win {
 
 class DisplayInfo;
 class ScreenWinDisplay;
 
-class DISPLAY_EXPORT ScreenWin : public Screen {
+class DISPLAY_EXPORT ScreenWin : public Screen,
+                                 public ColorProfileReader::Client {
  public:
   ScreenWin();
   ~ScreenWin() override;
 
   // Converts a screen physical point to a screen DIP point.
   // The DPI scale is performed relative to the display containing the physical
   // point.
   static gfx::Point ScreenToDIPPoint(const gfx::Point& pixel_point);
 
   // Converts a screen DIP point to a screen physical point.
@@ skipping 65 matching lines @@
   // you are targeting.
   static float GetSystemScaleFactor();
 
   // Returns the HWND associated with the NativeView.
   virtual HWND GetHWNDFromNativeView(gfx::NativeView view) const;
 
   // Returns the NativeView associated with the HWND.
   virtual gfx::NativeWindow GetNativeWindowFromHWND(HWND hwnd) const;
 
  protected:
+  ScreenWin(bool initialize);
+
   // Screen:
   gfx::Point GetCursorScreenPoint() override;
   bool IsWindowUnderCursor(gfx::NativeWindow window) override;
   gfx::NativeWindow GetWindowAtScreenPoint(const gfx::Point& point) override;
   int GetNumDisplays() const override;
   const std::vector<Display>& GetAllDisplays() const override;
   Display GetDisplayNearestWindow(gfx::NativeWindow window) const override;
   Display GetDisplayNearestPoint(const gfx::Point& point) const override;
   Display GetDisplayMatching(const gfx::Rect& match_rect) const override;
   Display GetPrimaryDisplay() const override;
   void AddObserver(DisplayObserver* observer) override;
   void RemoveObserver(DisplayObserver* observer) override;
   gfx::Rect ScreenToDIPRectInWindow(
       gfx::NativeView view, const gfx::Rect& screen_rect) const override;
   gfx::Rect DIPToScreenRectInWindow(
       gfx::NativeView view, const gfx::Rect& dip_rect) const override;
 
+  // ColorProfileReader::Client:
+  void OnColorProfilesChanged() override;
+
   void UpdateFromDisplayInfos(const std::vector<DisplayInfo>& display_infos);
 
   // Virtual to support mocking by unit tests.
-  virtual void Initialize();
   virtual MONITORINFOEX MonitorInfoFromScreenPoint(
       const gfx::Point& screen_point) const;
   virtual MONITORINFOEX MonitorInfoFromScreenRect(const gfx::Rect& screen_rect)
       const;
   virtual MONITORINFOEX MonitorInfoFromWindow(HWND hwnd, DWORD default_options)
       const;
   virtual HWND GetRootWindow(HWND hwnd) const;
   virtual int GetSystemMetrics(int metric) const;
 
  private:
+  void Initialize();
   void OnWndProc(HWND hwnd, UINT message, WPARAM wparam, LPARAM lparam);
 
   // Returns the ScreenWinDisplay closest to or enclosing |hwnd|.
   ScreenWinDisplay GetScreenWinDisplayNearestHWND(HWND hwnd) const;
 
   // Returns the ScreenWinDisplay closest to or enclosing |screen_rect|.
   ScreenWinDisplay GetScreenWinDisplayNearestScreenRect(
       const gfx::Rect& screen_rect) const;
 
   // Returns the ScreenWinDisplay closest to or enclosing |screen_point|.
@@ skipping 26 matching lines @@
 
   std::unique_ptr<gfx::SingletonHwndObserver> singleton_hwnd_observer_;
 
   // Current list of ScreenWinDisplays.
   std::vector<ScreenWinDisplay> screen_win_displays_;
 
   // The Displays corresponding to |screen_win_displays_| for GetAllDisplays().
   // This must be updated anytime |screen_win_displays_| is updated.
   std::vector<Display> displays_;
 
+  // A helper to read color profiles from the filesystem.
+  std::unique_ptr<ColorProfileReader> color_profile_reader_;
+
   DISALLOW_COPY_AND_ASSIGN(ScreenWin);
 };
 
 }  // namespace win
 }  // namespace display
 
 #endif  // UI_DISPLAY_WIN_SCREEN_WIN_H_