Re-land else-after-returns

core/src/fpdfdoc/doc_ocg.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 "../../include/fpdfdoc/fpdf_doc.h"
 static int32_t FPDFDOC_OCG_FindGroup(const CPDF_Object *pObject, const CPDF_Dictionary *pGroupDict)
 {
     if (pObject == NULL || pGroupDict == NULL) {
@@ skipping 189 matching lines @@
     int32_t iCount = pExpression->GetCount();
     CPDF_Object *pOCGObj;
     CFX_ByteString csOperator = pExpression->GetString(0);
     if (csOperator == FX_BSTRC("Not")) {
         pOCGObj = pExpression->GetElementValue(1);
         if (pOCGObj == NULL) {
             return FALSE;
         }
         if (pOCGObj->GetType() == PDFOBJ_DICTIONARY) {
             return !(bFromConfig ? LoadOCGState((CPDF_Dictionary*)pOCGObj) : GetOCGVisible((CPDF_Dictionary*)pOCGObj));
-        } else if (pOCGObj->GetType() == PDFOBJ_ARRAY) {
+        }
+        if (pOCGObj->GetType() == PDFOBJ_ARRAY) {
             return !GetOCGVE((CPDF_Array*)pOCGObj, bFromConfig, nLevel + 1);
-        } else {
-            return FALSE;
         }
+        return FALSE;
     }
     if (csOperator == FX_BSTRC("Or") || csOperator == FX_BSTRC("And")) {
         FX_BOOL bValue = FALSE;
         for (int32_t i = 1; i < iCount; i ++) {
             pOCGObj = pExpression->GetElementValue(1);
             if (pOCGObj == NULL) {
                 continue;
             }
             FX_BOOL bItem = FALSE;
             if (pOCGObj->GetType() == PDFOBJ_DICTIONARY) {
@@ skipping 54 matching lines @@
             return FALSE;
         }
         if (csP == FX_BSTRC("AllOff") && bItem) {
             return FALSE;
         }
     }
     return bState;
 }
 FX_BOOL CPDF_OCContext::CheckOCGVisible(const CPDF_Dictionary *pOCGDict)
 {
-    if (pOCGDict == NULL) {
+    if (!pOCGDict) {
         return TRUE;
     }
     CFX_ByteString csType = pOCGDict->GetString(FX_BSTRC("Type"), FX_BSTRC("OCG"));
     if (csType == FX_BSTRC("OCG")) {
         return GetOCGVisible(pOCGDict);
-    } else {
-        return LoadOCMDState(pOCGDict, FALSE);
     }
+    return LoadOCMDState(pOCGDict, FALSE);
 }
 void CPDF_OCContext::ResetOCContext()
 {
     m_OCGStates.clear();
 }