Speculative fix for WebPluginContainerImpl::calculateGeometry nullptr crashes.

Source/web/WebPluginContainerImpl.cpp

Index: Source/web/WebPluginContainerImpl.cpp
diff --git a/Source/web/WebPluginContainerImpl.cpp b/Source/web/WebPluginContainerImpl.cpp
index 4f1a15dcd47535e662d8e6aae5ab679d8a4dc776..c713f117dedb88e2ecf976fe88345916ed40cbac 100644
--- a/Source/web/WebPluginContainerImpl.cpp
+++ b/Source/web/WebPluginContainerImpl.cpp
@@ -417,7 +417,7 @@ void WebPluginContainerImpl::scrollRect(const WebRect& rect)
 void WebPluginContainerImpl::reportGeometry()
 {
     // We cannot compute geometry without a parent or layoutObject.
-    if (!parent() || !m_element->layoutObject())
+    if (!parent() || !m_element || !m_element->layoutObject())
         return;
 
     IntRect windowRect, clipRect, unobscuredRect;