Adds monitor ICC profile support for win and mac

ui/gfx/color_profile_mac.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/gfx/color_profile.h"
+
+#include "base/mac/mac_util.h"
+
+namespace gfx {
+
+void ColorProfile::ReadProfile(gfx::NativeViewId parent_window,
+                               std::vector<char>* profile) {
+  CGColorSpaceRef monitor_color_space(base::mac::GetSystemColorSpace());
+  CFDataRef icc_profile(CGColorSpaceCopyICCProfile(monitor_color_space));
+  if (icc_profile) {
+    size_t length = CFDataGetLength(icc_profile);

[Noel Gordon, 2012/06/21 16:58:33]

In the windows implementation you check lengths, viz., MAX_PROFILE_LENGTH etc. 
Here you accept the system profile length.  How come?  Does
CGColorSpaceCopyICCProfile vet the profile somehow?  Is it trustworthy?

[tpayne, 2012/07/02 19:22:32]

Done.

+    const unsigned char* sys_profile = CFDataGetBytePtr(icc_profile);
+    profile->assign(sys_profile, sys_profile + length);
+  }
+}
+
+}  // namespace gfx
+