auto import from //depot/cupcake/@135843

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diff --git a/JavaScriptCore/wtf/mac/MainThreadMac.mm b/JavaScriptCore/wtf/mac/MainThreadMac.mm
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+/*
+ * Copyright (C) 2007, 2008 Apple 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:
+ *
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer. 
+ * 2.  Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution. 
+ * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
+ *     its contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission. 
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, 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.
+ */
+ 
+#import "config.h"
+#import "MainThread.h"
+
+#import <Foundation/NSThread.h>
+
+@interface WTFMainThreadCaller : NSObject {
+}
+- (void)call;
+@end
+
+@implementation WTFMainThreadCaller
+
+- (void)call
+{
+    WTF::dispatchFunctionsFromMainThread();
+}
+
+@end // implementation WTFMainThreadCaller
+
+namespace WTF {
+
+void scheduleDispatchFunctionsOnMainThread()
+{
+    WTFMainThreadCaller *caller = [[WTFMainThreadCaller alloc] init];
+    [caller performSelectorOnMainThread:@selector(call) withObject:nil waitUntilDone:NO];
+    [caller release];
+}
+
+} // namespace WTF