1 files changed, 72 insertions, 0 deletions
diff --git a/WebCore/bindings/v8/V8GCForContextDispose.cpp b/WebCore/bindings/v8/V8GCForContextDispose.cpp
new file mode 100644
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--- /dev/null
+++ b/WebCore/bindings/v8/V8GCForContextDispose.cpp
@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2010 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
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. 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 THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
+ * OWNER OR 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 "config.h"
+#include "V8GCForContextDispose.h"
+
+#include <wtf/StdLibExtras.h>
+
+namespace WebCore {
+
+V8GCForContextDispose::V8GCForContextDispose()
+    : m_pseudoIdleTimer(this, &V8GCForContextDispose::pseudoIdleTimerFired)
+{
+}
+
+void V8GCForContextDispose::notifyContextDisposed()
+{
+    v8::V8::ContextDisposedNotification();
+    if (!m_pseudoIdleTimer.isActive())
+        m_pseudoIdleTimer.startOneShot(0.8);
+}
+
+void V8GCForContextDispose::notifyIdleSooner(double maximumFireInterval)
+{
+    if (m_pseudoIdleTimer.isActive()) {
+        double nextFireInterval = m_pseudoIdleTimer.nextFireInterval();
+        if (nextFireInterval > maximumFireInterval) {
+            m_pseudoIdleTimer.stop();
+            m_pseudoIdleTimer.startOneShot(maximumFireInterval);
+        }
+    }
+}
+
+V8GCForContextDispose& V8GCForContextDispose::instance()
+{
+    DEFINE_STATIC_LOCAL(V8GCForContextDispose, staticInstance, ());
+    return staticInstance;
+}
+
+void V8GCForContextDispose::pseudoIdleTimerFired(Timer<V8GCForContextDispose>*)
+{
+    v8::V8::IdleNotification();
+}
+
+} // namespace WebCore