Remove WebHistoryItem child usage

content/renderer/history_serialization.h

Index: content/renderer/history_serialization.h
diff --git a/content/renderer/history_serialization.h b/content/renderer/history_serialization.h
index 6160fd3b34b9072fe0dd41c0c4c727b2a48fb537..16a8778e1b41b8d1c4c59c688b2e6b7d21465385 100644
--- a/content/renderer/history_serialization.h
+++ b/content/renderer/history_serialization.h
@@ -6,21 +6,17 @@
 #define CONTENT_RENDERER_HISTORY_SERIALIZATION_H_
 
 #include <string>
+#include <vector>
 
 #include "content/common/content_export.h"
 
-namespace blink {
-class WebHistoryItem;
-}
-
 namespace content {
+class HistoryEntry;
 class PageState;
 
-CONTENT_EXPORT PageState HistoryItemToPageState(
-    const blink::WebHistoryItem& item);
-CONTENT_EXPORT blink::WebHistoryItem PageStateToHistoryItem(
-    const PageState& state);
-
+CONTENT_EXPORT PageState HistoryEntryToPageState(HistoryEntry* entry);
+CONTENT_EXPORT HistoryEntry* PageStateToHistoryEntry(const PageState& state,
+                                                     int main_routing_id);
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_HISTORY_SERIALIZATION_H_