Simplify CPDF_TextPage::FindTextlineFlowOrientation().

fpdfsdk/fpdf_flatten.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 "public/fpdf_flatten.h"
 
 #include <algorithm>
 
@@ skipping 30 matching lines @@
 
   return TRUE;
 }
 
 void GetContentsRect(CPDF_Document* pDoc,
                      CPDF_Dictionary* pDict,
                      CPDF_RectArray* pRectArray) {
   std::unique_ptr<CPDF_Page> pPDFPage(new CPDF_Page(pDoc, pDict, false));
   pPDFPage->ParseContent();
 
-  for (auto& pPageObject : *pPDFPage->GetPageObjectList()) {
-    if (!pPageObject)
-      continue;
-
+  for (const auto& pPageObject : *pPDFPage->GetPageObjectList()) {
     CFX_FloatRect rc;
     rc.left = pPageObject->m_Left;
     rc.right = pPageObject->m_Right;
     rc.bottom = pPageObject->m_Bottom;
     rc.top = pPageObject->m_Top;
     if (IsValiableRect(rc, pDict->GetRectBy("MediaBox")))
       pRectArray->Add(rc);
   }
 }
 
@@ skipping 445 matching lines @@
     sStream += sTemp;
     pNewXObject->SetData(sStream.raw_str(), sStream.GetLength(), FALSE, FALSE);
   }
   pPageDict->RemoveAt("Annots");
 
   ObjectArray.RemoveAll();
   RectArray.RemoveAll();
 
   return FLATTEN_SUCCESS;
 }