Merge WebKit at r75993: Initial merge by git.

Change-Id: I602bbdc3974787a3b0450456a30a7868286921c3

1 files changed, 64 insertions, 0 deletions

diff --git a/Source/WebKit2/UIProcess/ResponsivenessTimer.h b/Source/WebKit2/UIProcess/ResponsivenessTimer.h
new file mode 100644
index 0000000..6591916
--- /dev/null
+++ b/Source/WebKit2/UIProcess/ResponsivenessTimer.h
@@ -0,0 +1,64 @@
+/*
+ * 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.
+ */
+
+#ifndef ResponsivenessTimer_h
+#define ResponsivenessTimer_h
+
+#include "RunLoop.h"
+
+namespace WebKit {
+
+class ResponsivenessTimer {
+public:
+    class Client {
+    public:
+        virtual ~Client() { }
+        virtual void didBecomeUnresponsive(ResponsivenessTimer*) = 0;
+        virtual void didBecomeResponsive(ResponsivenessTimer*) = 0;
+    };
+
+    ResponsivenessTimer(ResponsivenessTimer::Client*);
+    ~ResponsivenessTimer();
+    
+    void start();
+    void stop();
+
+    void invalidate();
+    
+    bool isResponsive() { return m_isResponsive; }
+
+private:
+    void timerFired();
+
+    ResponsivenessTimer::Client* m_client;
+    bool m_isResponsive;
+
+    RunLoop::Timer<ResponsivenessTimer> m_timer;
+};
+
+} // namespace WebKit
+
+#endif // ResponsivenessTimer_h
+