ui/gfx/color_profile: Add GetDisplayColorProfile for an NSWindow

ui/gfx/color_profile_mac.mm

 // Copyright 2014 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_profile.h"
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/mac/mac_util.h"
 #include "base/mac/scoped_cftyperef.h"
@@ skipping 36 matching lines @@
   if ([color_space isEqual:[NSColorSpace sRGBColorSpace]])
     return true;
   NSData* profile_data = [color_space ICCProfileData];
   const char* data = static_cast<const char*>([profile_data bytes]);
   size_t length = [profile_data length];
   if (data && !gfx::InvalidColorProfileLength(length))
     profile->assign(data, data + length);
   return true;
 }
 
+GFX_EXPORT bool GetDisplayColorProfile(gfx::NativeWindow window,
+                                       std::vector<char>* profile) {
+  DCHECK(profile->empty());
+
+  NSColorSpace* color_space = [window colorSpace];
+  if (!color_space || NSIsEmptyRect([window frame]))
+    return false;
+
+  if ([color_space isEqual:[NSColorSpace sRGBColorSpace]])
+    return true;
+  NSData* profile_data = [color_space ICCProfileData];
+  const char* data = static_cast<const char*>([profile_data bytes]);
+  size_t length = [profile_data length];
+  if (data && !gfx::InvalidColorProfileLength(length))
+    profile->assign(data, data + length);
+  return true;
+}
+
 void ReadColorProfile(std::vector<char>* profile) {
   CGColorSpaceRef monitor_color_space(base::mac::GetSystemColorSpace());
   base::ScopedCFTypeRef<CFDataRef> icc_profile(
       CGColorSpaceCopyICCProfile(monitor_color_space));
   if (!icc_profile)
     return;
   size_t length = CFDataGetLength(icc_profile);
   if (gfx::InvalidColorProfileLength(length))
     return;
   const unsigned char* data = CFDataGetBytePtr(icc_profile);
   profile->assign(data, data + length);
 }
 
 }  // namespace gfx