Teach gfx::Screen about color profiles

ui/gfx/screen_ios.mm

 // 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/screen.h"
 
 #import <UIKit/UIKit.h>
 
 #include "base/logging.h"
 #include "ui/gfx/display.h"
@@ skipping 35 matching lines @@
     return std::vector<gfx::Display>(1, GetPrimaryDisplay());
   }
 
   // Returns the display nearest the specified window.
   virtual gfx::Display GetDisplayNearestWindow(
       gfx::NativeView view) const OVERRIDE {
     NOTIMPLEMENTED();
     return gfx::Display();
   }
 
+  // Returns the color profile of the display nearest the window.
+  virtual bool GetDisplayColorProfile(
+      gfx::NativeView view, std::vector<char>* color_profile) const OVERRIDE {
+    // TODO(port): consider screen color profile support.
+    return false;
+  }
+
   // Returns the the display nearest the specified point.
   virtual gfx::Display GetDisplayNearestPoint(
       const gfx::Point& point) const OVERRIDE {
     NOTIMPLEMENTED();
     return gfx::Display();
   }
 
   // Returns the display that most closely intersects the provided bounds.
   virtual gfx::Display GetDisplayMatching(
       const gfx::Rect& match_rect) const OVERRIDE {
@@ skipping 21 matching lines @@
 
 }  // namespace
 
 namespace gfx {
 
 Screen* CreateNativeScreen() {
   return new ScreenIos;
 }
 
 }  // namespace gfx