Add thread affinity and ASSERT() for same-thread restriction to WTF::Function

third_party/WebKit/Source/platform/ContentSettingCallbacks.cpp

 /*
  * Copyright (C) 2014 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 14 matching lines @@
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "platform/ContentSettingCallbacks.h"
 
 namespace blink {
 
-PassOwnPtr<ContentSettingCallbacks> ContentSettingCallbacks::create(PassOwnPtr<Closure> allowed, PassOwnPtr<Closure> denied)
+PassOwnPtr<ContentSettingCallbacks> ContentSettingCallbacks::create(PassOwnPtr<SameThreadClosure> allowed, PassOwnPtr<SameThreadClosure> denied)
 {
     return adoptPtr(new ContentSettingCallbacks(std::move(allowed), std::move(denied)));
 }
 
-ContentSettingCallbacks::ContentSettingCallbacks(PassOwnPtr<Closure> allowed, PassOwnPtr<Closure> denied)
+ContentSettingCallbacks::ContentSettingCallbacks(PassOwnPtr<SameThreadClosure> allowed, PassOwnPtr<SameThreadClosure> denied)
     : m_allowed(std::move(allowed))
     , m_denied(std::move(denied))
 {
 }
 
 } // namespace blink