Remove WebHistoryItem child usage

content/renderer/history_entry.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /*
  * Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved.
  *     (http://www.torchmobile.com/)
  *
  * Redistribution and use in source and binary forms, with or without
@@ skipping 20 matching lines @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef CONTENT_RENDERER_HISTORY_ENTRY_H_
 #define CONTENT_RENDERER_HISTORY_ENTRY_H_
 
 #include "base/containers/hash_tables.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"
+#include "content/common/content_export.h"
 #include "third_party/WebKit/public/platform/WebURLRequest.h"
 #include "third_party/WebKit/public/web/WebHistoryItem.h"
 
 namespace blink {
 class WebFrame;
 }
 
 namespace content {
 class RenderFrameImpl;
 class RenderViewImpl;
 
 const int kInvalidFrameRoutingID = -1;
 
-class HistoryEntry {
+class CONTENT_EXPORT HistoryEntry {
  public:
   class HistoryNode {
    public:
     HistoryNode(HistoryEntry* entry,
                 const blink::WebHistoryItem& item,
                 int64_t frame_id);
     ~HistoryNode();
 
     HistoryNode* AddChild(const blink::WebHistoryItem& item, int64_t frame_id);
     HistoryNode* CloneAndReplace(HistoryEntry* new_entry,
                                  const blink::WebHistoryItem& new_item,
                                  bool clone_children_of_target,
                                  RenderFrameImpl* target_frame,
                                  RenderFrameImpl* current_frame);
     blink::WebHistoryItem& item() { return item_; }
-    void set_item(const blink::WebHistoryItem& item) { item_ = item; }
+    void set_item(const blink::WebHistoryItem& item);
     std::vector<HistoryNode*>& children() const { return children_->get(); }
     void RemoveChildren();
 
    private:
     HistoryEntry* entry_;
     scoped_ptr<ScopedVector<HistoryNode> > children_;
     blink::WebHistoryItem item_;
   };
 
   HistoryEntry(const blink::WebHistoryItem& root, int64_t frame_id);
@@ skipping 17 matching lines @@
   typedef base::hash_map<uint64_t, HistoryNode*> FramesToItems;
   FramesToItems frames_to_items_;
 
   typedef base::hash_map<std::string, HistoryNode*> UniqueNamesToItems;
   UniqueNamesToItems unique_names_to_items_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_HISTORY_ENTRY_H_