Move PageOverlay::Delegate off the Oilpan heap.

third_party/WebKit/Source/web/PageOverlay.cpp

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  * 1. Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *
@@ skipping 27 matching lines @@
 #include "platform/scroll/MainThreadScrollingReason.h"
 #include "public/platform/WebLayer.h"
 #include "public/web/WebViewClient.h"
 #include "web/WebDevToolsAgentImpl.h"
 #include "web/WebViewImpl.h"
 #include "wtf/PtrUtil.h"
 #include <memory>
 
 namespace blink {
 
-std::unique_ptr<PageOverlay> PageOverlay::create(WebViewImpl* viewImpl, PageOverlay::Delegate* delegate)
+std::unique_ptr<PageOverlay> PageOverlay::create(WebViewImpl* viewImpl, std::unique_ptr<PageOverlay::Delegate> delegate)
 {
-    return wrapUnique(new PageOverlay(viewImpl, delegate));
+    return wrapUnique(new PageOverlay(viewImpl, std::move(delegate)));
 }
 
-PageOverlay::PageOverlay(WebViewImpl* viewImpl, PageOverlay::Delegate* delegate)
+PageOverlay::PageOverlay(WebViewImpl* viewImpl, std::unique_ptr<PageOverlay::Delegate> delegate)
     : m_viewImpl(viewImpl)
-    , m_delegate(delegate)
+    , m_delegate(std::move(delegate))
 {
 }
 
 PageOverlay::~PageOverlay()
 {
     if (!m_layer)
         return;
 
     m_layer->removeFromParent();
     if (WebDevToolsAgentImpl* devTools = m_viewImpl->mainFrameDevToolsAgentImpl())
@@ skipping 49 matching lines @@
     DCHECK(m_layer);
     m_delegate->paintPageOverlay(*this, gc, interestRect.size());
 }
 
 String PageOverlay::debugName(const GraphicsLayer*) const
 {
     return "WebViewImpl Page Overlay Content Layer";
 }
 
 } // namespace blink