Remove the use of OwnedPtrDeleter in WebHelperPlugin.

third_party/WebKit/Source/web/WebHelperPluginImpl.cpp

Index: third_party/WebKit/Source/web/WebHelperPluginImpl.cpp
diff --git a/third_party/WebKit/Source/web/WebHelperPluginImpl.cpp b/third_party/WebKit/Source/web/WebHelperPluginImpl.cpp
index c13253ba8501a9317f5c06d65ad52ddeec50619c..d293cc4f22419ab0405dbd6bfaedf92784aab7e6 100644
--- a/third_party/WebKit/Source/web/WebHelperPluginImpl.cpp
+++ b/third_party/WebKit/Source/web/WebHelperPluginImpl.cpp
@@ -43,10 +43,10 @@ DEFINE_TYPE_CASTS(WebHelperPluginImpl, WebHelperPlugin, plugin, true, true);
 
 WebHelperPlugin* WebHelperPlugin::create(const WebString& pluginType, WebLocalFrame* frame)
 {
-    OwnPtr<WebHelperPlugin> plugin = adoptPtr<WebHelperPlugin>(new WebHelperPluginImpl());
+    WebHelperPluginUniquePtr plugin(new WebHelperPluginImpl());
     if (!toWebHelperPluginImpl(plugin.get())->initialize(pluginType, toWebLocalFrameImpl(frame)))
         return 0;
-    return plugin.leakPtr();
+    return plugin.release();
 }
 
 WebHelperPluginImpl::WebHelperPluginImpl()