Review and cleanup lint warnings.

core/src/fpdfdoc/doc_link.cpp

 // Copyright 2014 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #include "core/include/fpdfdoc/fpdf_doc.h"
 
+#include <vector>
+
 CPDF_LinkList::CPDF_LinkList() {
 }
 
 CPDF_LinkList::~CPDF_LinkList() {
 }
 
 const std::vector<CPDF_Dictionary*>* CPDF_LinkList::GetPageLinks(
     CPDF_Page* pPage) {
   FX_DWORD objnum = pPage->m_pFormDict->GetObjNum();
   if (objnum == 0)
@@ skipping 62 matching lines @@
     CFX_ByteStringC name = pDest->GetString();
     return CPDF_Dest(name_tree.LookupNamedDest(pDoc, name));
   }
   if (CPDF_Array* pArray = pDest->AsArray())
     return CPDF_Dest(pArray);
   return CPDF_Dest();
 }
 CPDF_Action CPDF_Link::GetAction() {
   return CPDF_Action(m_pDict->GetDictBy("A"));
 }