diff -r 000000000000 -r 4f2f89ce4247 WebKit2/Platform/mac/RunLoopMac.mm
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebKit2/Platform/mac/RunLoopMac.mm	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,130 @@
+/*
+ * Copyright (C) 2010 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. 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 INC. 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.
+ */
+
+#include "RunLoop.h"
+
+#include "WorkItem.h"
+
+void RunLoop::performWork(void* context)
+{
+    static_cast<RunLoop*>(context)->performWork();
+}
+
+RunLoop::RunLoop()
+{
+    m_runLoop = CFRunLoopGetCurrent();
+
+    CFRunLoopSourceContext context = { 0, this, 0, 0, 0, 0, 0, 0, 0, performWork };
+    m_runLoopSource = CFRunLoopSourceCreate(kCFAllocatorDefault, 0, &context);
+    CFRunLoopAddSource(m_runLoop, m_runLoopSource, kCFRunLoopCommonModes);
+}
+
+RunLoop::~RunLoop()
+{
+    // FIXME: Tear down the work item queue here.
+    CFRunLoopSourceInvalidate(m_runLoopSource);
+    CFRelease(m_runLoopSource);
+}
+
+void RunLoop::run()
+{
+    if (current() == main()) {
+        // Use -[NSApplication run] for the main run loop.
+        [NSApp run];
+    } else {
+        // Otherwise, use NSRunLoop. We do this because it sets up an autorelease pool for us.
+        [[NSRunLoop currentRunLoop] run];
+    }        
+}
+
+void RunLoop::stop()
+{
+    ASSERT(m_runLoop == CFRunLoopGetCurrent());
+    
+    if (m_runLoop == main()->m_runLoop) {
+        [NSApp stop:nil];
+        NSEvent *event = [NSEvent otherEventWithType:NSApplicationDefined
+                                            location:NSMakePoint(0, 0)
+                                       modifierFlags:0
+                                           timestamp:0.0
+                                         windowNumber:0
+                                             context:nil
+                                             subtype: 0
+                                               data1:0
+                                               data2:0];
+        [NSApp postEvent:event atStart:true];
+    } else
+        CFRunLoopStop(m_runLoop);
+}
+
+void RunLoop::wakeUp()
+{
+    CFRunLoopSourceSignal(m_runLoopSource);
+    CFRunLoopWakeUp(m_runLoop);
+}
+
+// RunLoop::Timer
+
+void RunLoop::TimerBase::timerFired(CFRunLoopTimerRef, void* context)
+{
+    TimerBase* timer = static_cast<TimerBase*>(context);
+    timer->fired();
+}
+
+RunLoop::TimerBase::TimerBase(RunLoop* runLoop)
+    : m_runLoop(runLoop)
+    , m_timer(0)
+{
+}
+
+RunLoop::TimerBase::~TimerBase()
+{
+    stop();
+}
+
+void RunLoop::TimerBase::start(double nextFireInterval, double repeatInterval)
+{
+    if (m_timer)
+        stop();
+
+    CFRunLoopTimerContext context = { 0, this, 0, 0, 0 };
+    m_timer = CFRunLoopTimerCreate(kCFAllocatorDefault, CFAbsoluteTimeGetCurrent() + nextFireInterval, repeatInterval, 0, 0, timerFired, &context);
+    CFRunLoopAddTimer(m_runLoop->m_runLoop, m_timer, kCFRunLoopCommonModes);
+}
+
+void RunLoop::TimerBase::stop()
+{
+    if (!m_timer)
+        return;
+
+    CFRunLoopTimerInvalidate(m_timer);
+    CFRelease(m_timer);
+    m_timer = 0;
+}
+
+bool RunLoop::TimerBase::isActive() const
+{
+    return m_timer && CFRunLoopTimerIsValid(m_timer);
+}