[Mac] Re-add the NSColor sandbox warmup.

content/common/sandbox_mac.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 "content/common/sandbox_mac.h"
 
 #import <Cocoa/Cocoa.h>
 
 #include <CoreFoundation/CFTimeZone.h>
 extern "C" {
@@ skipping 259 matching lines @@
 
     // Load in the color profiles we'll need (as a side effect).
     (void) base::mac::GetSRGBColorSpace();
     (void) base::mac::GetSystemColorSpace();
 
     // CGColorSpaceCreateSystemDefaultCMYK - 10.6
     base::ScopedCFTypeRef<CGColorSpaceRef> cmyk_colorspace(
         CGColorSpaceCreateWithName(kCGColorSpaceGenericCMYK));
   }
 
+  { // -[NSColor colorUsingColorSpaceName] - 10.5.6
+    // Used in ppapi processes only. http://crbug.com/348304
+    NSColor* color = [NSColor controlTextColor];
+    [color colorUsingColorSpaceName:NSCalibratedRGBColorSpace];
+  }
+
   { // localtime() - 10.5.6
     time_t tv = {0};
     localtime(&tv);
   }
 
   { // Gestalt() tries to read /System/Library/CoreServices/SystemVersion.plist
     // on 10.5.6
     int32 tmp;
     base::SysInfo::OperatingSystemVersionNumbers(&tmp, &tmp, &tmp);
   }
@@ skipping 323 matching lines @@
   if (HANDLE_EINTR(fcntl(fd, F_GETPATH, canonical_path)) != 0) {
     DPLOG(FATAL) << "GetCanonicalSandboxPath() failed for: "
                  << path.value();
     return path;
   }
 
   return base::FilePath(canonical_path);
 }
 
 }  // namespace content