Oilpan: mark WebPageSerializerImpl as stack allocated.

Source/web/WebPageSerializerImpl.h

 /*
  * Copyright (C) 2009 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 46 matching lines @@
 
 // Get html data by serializing all frames of current page with lists
 // which contain all resource links that have local copy.
 // contain all saved auxiliary files included all sub frames and resources.
 // This function will find out all frames and serialize them to HTML data.
 // We have a data buffer to temporary saving generated html data. We will
 // sequentially call WebViewDelegate::SendSerializedHtmlData once the data
 // buffer is full. See comments of WebViewDelegate::SendSerializedHtmlData
 // for getting more information.
 class WebPageSerializerImpl {
+    STACK_ALLOCATED();
 public:
     // Do serialization action. Return false means no available frame has been
     // serialized, otherwise return true.
     bool serialize();
 
     // The parameter specifies which frame need to be serialized.
     // The parameter recursive_serialization specifies whether we need to
     // serialize all sub frames of the specified frame or not.
     // The parameter delegate specifies the pointer of interface
     // DomSerializerDelegate provide sink interface which can receive the
     // individual chunks of data to be saved.
     // The parameter links contain original URLs of all saved links.
     // The parameter local_paths contain corresponding local file paths of all
     // saved links, which matched with vector:links one by one.
     // The parameter local_directory_name is relative path of directory which
     // contain all saved auxiliary files included all sub frames and resources.
     WebPageSerializerImpl(WebFrame* frame,
                           bool recursive,
                           WebPageSerializerClient* client,
                           const WebVector<WebURL>& links,
                           const WebVector<WebString>& localPaths,
                           const WebString& localDirectoryName);
 
 private:
     // Specified frame which need to be serialized;
-    WebLocalFrameImpl* m_specifiedWebLocalFrameImpl;
+    RawPtrWillBeMember<WebLocalFrameImpl> m_specifiedWebLocalFrameImpl;
     // Pointer of WebPageSerializerClient
     WebPageSerializerClient* m_client;
     // This hash map is used to map resource URL of original link to its local
     // file path.
     typedef HashMap<WTF::String, WTF::String> LinkLocalPathMap;
     // local_links_ include all pair of local resource path and corresponding
     // original link.
     LinkLocalPathMap m_localLinks;
     // Data buffer for saving result of serialized DOM data.
     StringBuilder m_dataBuffer;
     // Passing true to recursive_serialization_ indicates we will serialize not
     // only the specified frame but also all sub-frames in the specific frame.
     // Otherwise we only serialize the specified frame excluded all sub-frames.
     bool m_recursiveSerialization;
     // Flag indicates whether we have collected all frames which need to be
     // serialized or not;
     bool m_framesCollected;
     // Local directory name of all local resource files.
     WTF::String m_localDirectoryName;
     // Vector for saving all frames which need to be serialized.
-    Vector<WebLocalFrameImpl*> m_frames;
+    WillBeHeapVector<RawPtrWillBeMember<WebLocalFrameImpl>> m_frames;
 
     // Web entities conversion maps.
     WebEntities m_htmlEntities;
     WebEntities m_xmlEntities;
 
-    struct SerializeDomParam {
+    class SerializeDomParam {
+        STACK_ALLOCATED();
+    public:
+        SerializeDomParam(const KURL&, const WTF::TextEncoding&, Document*, const WTF::String& directoryName);
+
         const KURL& url;
         const WTF::TextEncoding& textEncoding;
-        Document* document;
+        RawPtrWillBeMember<Document> document;
         const WTF::String& directoryName;
         bool isHTMLDocument; // document.isHTMLDocument()
         bool haveSeenDocType;
         bool haveAddedCharsetDeclaration;
         // This meta element need to be skipped when serializing DOM.
-        const Element* skipMetaElement;
+        RawPtrWillBeMember<const Element> skipMetaElement;
         // Flag indicates we are in script or style tag.
         bool isInScriptOrStyleTag;
         bool haveAddedXMLProcessingDirective;
         // Flag indicates whether we have added additional contents before end tag.
         // This flag will be re-assigned in each call of function
         // PostActionAfterSerializeOpenTag and it could be changed in function
         // PreActionBeforeSerializeEndTag if the function adds new contents into
         // serialization stream.
         bool haveAddedContentsBeforeEnd;
-
-        SerializeDomParam(const KURL&, const WTF::TextEncoding&, Document*, const WTF::String& directoryName);
     };
 
     // Collect all target frames which need to be serialized.
     void collectTargetFrames();
     // Before we begin serializing open tag of a element, we give the target
     // element a chance to do some work prior to add some additional data.
     WTF::String preActionBeforeSerializeOpenTag(const Element*,
                                                     SerializeDomParam* param,
                                                     bool* needSkip);
     // After we finish serializing open tag of a element, we give the target
@@ skipping 31 matching lines @@
     void endTagToString(Element*,
                         SerializeDomParam* param);
     // Build content for a specified node
     void buildContentForNode(Node*,
                              SerializeDomParam* param);
 };
 
 } // namespace blink
 
 #endif