BrowserPlugin/WebView - Move plugin lifetime to DOM

Source/web/WebPluginContainerImpl.cpp

Index: Source/web/WebPluginContainerImpl.cpp
diff --git a/Source/web/WebPluginContainerImpl.cpp b/Source/web/WebPluginContainerImpl.cpp
index f227705385a922aabfabcb7b8fbb89ed22cfa394..b2ec8a63c7b8138086c44bf63087763e52058324 100644
--- a/Source/web/WebPluginContainerImpl.cpp
+++ b/Source/web/WebPluginContainerImpl.cpp
@@ -270,6 +270,8 @@ void WebPluginContainerImpl::setParent(Widget* widget)
     Widget::setParent(widget);
     if (widget)
         reportGeometry();
+    else if (m_webPlugin)
+        m_webPlugin->containerDidDetachFromParent();
 }
 
 void WebPluginContainerImpl::setPlugin(WebPlugin* plugin)
@@ -915,4 +917,9 @@ WebCore::IntRect WebPluginContainerImpl::windowClipRect() const
     return clipRect;
 }
 
+bool WebPluginContainerImpl::pluginShouldPersist() const
+{
+    return m_webPlugin->shouldPersist();
+}
+
 } // namespace blink