Move the logic to retrieve the WebPluginContainer to LocalFrame and Node.

third_party/WebKit/Source/core/dom/Node.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All
  * rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved.
  * (http://www.torchmobile.com/)
  *
@@ skipping 72 matching lines @@
 #include "core/frame/EventHandlerRegistry.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/LocalDOMWindow.h"
 #include "core/frame/LocalFrame.h"
 #include "core/frame/UseCounter.h"
 #include "core/html/HTMLDialogElement.h"
 #include "core/html/HTMLFrameOwnerElement.h"
 #include "core/html/HTMLSlotElement.h"
 #include "core/input/EventHandler.h"
 #include "core/layout/LayoutBox.h"
+#include "core/layout/LayoutPart.h"
 #include "core/page/ContextMenuController.h"
 #include "core/page/Page.h"
+#include "core/plugins/PluginView.h"
 #include "core/svg/SVGElement.h"
 #include "core/svg/graphics/SVGImage.h"
 #include "platform/EventDispatchForbiddenScope.h"
 #include "platform/InstanceCounters.h"
 #include "platform/RuntimeEnabledFeatures.h"
 #include "platform/bindings/DOMDataStore.h"
 #include "platform/bindings/Microtask.h"
 #include "platform/bindings/ScriptWrappableVisitor.h"
 #include "platform/bindings/V8DOMWrapper.h"
 #include "platform/instrumentation/tracing/TraceEvent.h"
@@ skipping 2467 matching lines @@
       HTMLSlotElement& parent_slot = toHTMLSlotElement(*parent);
       // TODO(hayato): Support slotchange for slots in non-shadow trees.
       if (ShadowRoot* root = ContainingShadowRoot()) {
         if (root && root->IsV1() && !parent_slot.HasAssignedNodesSlow())
           parent_slot.DidSlotChange(slot_change_type);
       }
     }
   }
 }
 
+WebPluginContainerBase* Node::GetWebPluginContainerBase() const {
+  if (!isHTMLObjectElement(this) && !isHTMLEmbedElement(this)) {

[haraken, 2017/05/22 04:51:44]

Can we probably use isHTMLPluginElement()?

[slangley, 2017/05/22 23:53:25]

If possible, i'd rather this change be purely mechanical. I can followup with
this change.

+    return nullptr;
+  }
+
+  LayoutObject* object = GetLayoutObject();
+  if (object && object->IsLayoutPart()) {
+    PluginView* plugin = ToLayoutPart(object)->Plugin();
+    if (plugin) {
+      return plugin->GetWebPluginContainerBase();
+    }
+  }
+
+  return nullptr;
+}
+
 DEFINE_TRACE(Node) {
   visitor->Trace(parent_or_shadow_host_node_);
   visitor->Trace(previous_);
   visitor->Trace(next_);
   // rareData() and m_data.m_layoutObject share their storage. We have to trace
   // only one of them.
   if (HasRareData())
     visitor->Trace(RareData());
 
   visitor->Trace(tree_scope_);
@@ skipping 31 matching lines @@
   if (node) {
     std::stringstream stream;
     node->PrintNodePathTo(stream);
     LOG(INFO) << stream.str();
   } else {
     LOG(INFO) << "Cannot showNodePath for <null>";
   }
 }
 
 #endif