Apply OwnPtr|PassOwnPtr to m_validationMessageClient and setValidationMessageClient() in Page class

Source/web/WebViewImpl.cpp

Index: Source/web/WebViewImpl.cpp
diff --git a/Source/web/WebViewImpl.cpp b/Source/web/WebViewImpl.cpp
index 068042dd04c18621acb953f465d63a807b28b9a9..7245f7743cf47f9904ac620539fe01d7112ab088 100644
--- a/Source/web/WebViewImpl.cpp
+++ b/Source/web/WebViewImpl.cpp
@@ -404,8 +404,7 @@ WebViewImpl::WebViewImpl(WebViewClient* client)
     provideDatabaseClientTo(*m_page, DatabaseClientImpl::create());
     InspectorIndexedDBAgent::provideTo(m_page.get());
     provideStorageQuotaClientTo(*m_page, StorageQuotaClientImpl::create());
-    m_validationMessage = ValidationMessageClientImpl::create(*this);
-    m_page->setValidationMessageClient(m_validationMessage.get());
+    m_page->setValidationMessageClient(ValidationMessageClientImpl::create(*this));
     provideWorkerGlobalScopeProxyProviderTo(*m_page, WorkerGlobalScopeProxyProviderImpl::create());
 
     m_page->makeOrdinary();