Enable chromium_code standard for XFA code

xfa/fxfa/parser/xfa_object_imp.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 "xfa/fxfa/parser/xfa_object.h"
 
 #include <memory>
 
@@ skipping 811 matching lines @@
   }
 }
 void CXFA_Node::Script_NodeClass_ApplyXSL(CFXJSE_Arguments* pArguments) {
   int32_t iLength = pArguments->GetLength();
   if (iLength != 1) {
     ThrowScriptErrorMessage(XFA_IDS_INCORRECT_NUMBER_OF_METHOD, L"applyXSL");
     return;
   }
   CFX_WideString wsExpression =
       CFX_WideString::FromUTF8(pArguments->GetUTF8String(0).AsStringC());
-  // TODO(tsepez): actually do something here?
+  // TODO(weili): check whether we need to implement this, pdfium:501.
+  // For now, just put the variables here to avoid unused variable warning.
+  (void)wsExpression;
 }
+
 void CXFA_Node::Script_NodeClass_AssignNode(CFXJSE_Arguments* pArguments) {
   int32_t iLength = pArguments->GetLength();
   if (iLength < 1 || iLength > 3) {
     ThrowScriptErrorMessage(XFA_IDS_INCORRECT_NUMBER_OF_METHOD, L"assignNode");
     return;
   }
   CFX_WideString wsExpression;
   CFX_WideString wsValue;
   int32_t iAction = 0;
   if (iLength >= 1) {
-    CFX_ByteString bsExpression = pArguments->GetUTF8String(0);
-    wsExpression = CFX_WideString::FromUTF8(bsExpression.AsStringC());
+    wsExpression =
+        CFX_WideString::FromUTF8(pArguments->GetUTF8String(0).AsStringC());
   }
   if (iLength >= 2) {
-    CFX_ByteString bsValue = pArguments->GetUTF8String(1);
-    wsValue = CFX_WideString::FromUTF8(bsValue.AsStringC());
+    wsValue =
+        CFX_WideString::FromUTF8(pArguments->GetUTF8String(1).AsStringC());
   }
-  if (iLength >= 3) {
+  if (iLength >= 3)
     iAction = pArguments->GetInt32(2);
-  }
+  // TODO(weili): check whether we need to implement this, pdfium:501.
+  // For now, just put the variables here to avoid unused variable warning.
+  (void)wsExpression;
+  (void)wsValue;
+  (void)iAction;
 }
+
 void CXFA_Node::Script_NodeClass_Clone(CFXJSE_Arguments* pArguments) {
   int32_t iLength = pArguments->GetLength();
   if (iLength != 1) {
     ThrowScriptErrorMessage(XFA_IDS_INCORRECT_NUMBER_OF_METHOD, L"clone");
     return;
   }
   FX_BOOL bClone = TRUE;
   bClone = pArguments->GetInt32(0) == 0 ? FALSE : TRUE;
   CXFA_Node* pCloneNode = Clone(bClone);
   FXJSE_Value_Set(
@@ skipping 267 matching lines @@
     ThrowScriptErrorMessage(XFA_IDS_INCORRECT_NUMBER_OF_METHOD,
                             L"setAttribute");
     return;
   }
   CFX_WideString wsAttributeValue =
       CFX_WideString::FromUTF8(pArguments->GetUTF8String(0).AsStringC());
   CFX_WideString wsAttribute =
       CFX_WideString::FromUTF8(pArguments->GetUTF8String(1).AsStringC());
   SetAttribute(wsAttribute.AsStringC(), wsAttributeValue.AsStringC(), TRUE);
 }
+
 void CXFA_Node::Script_NodeClass_SetElement(CFXJSE_Arguments* pArguments) {
   int32_t iLength = pArguments->GetLength();
   if (iLength != 1 && iLength != 2) {
     ThrowScriptErrorMessage(XFA_IDS_INCORRECT_NUMBER_OF_METHOD, L"setElement");
     return;
   }
-  CXFA_Node* pNode = NULL;
+  CXFA_Node* pNode = nullptr;
   CFX_WideString wsName;
-  if (iLength >= 1) {
+  if (iLength >= 1)
     pNode = static_cast<CXFA_Node*>(pArguments->GetObject(0));
+  if (iLength >= 2) {
+    wsName = CFX_WideString::FromUTF8(pArguments->GetUTF8String(1).AsStringC());
   }
-  if (iLength >= 2) {
-    CFX_ByteString bsName = pArguments->GetUTF8String(1);
-    wsName = CFX_WideString::FromUTF8(bsName.AsStringC());
-  }
+  // TODO(weili): check whether we need to implement this, pdfium:501.
+  // For now, just put the variables here to avoid unused variable warning.
+  (void)pNode;
+  (void)wsName;
 }
+
 void CXFA_Node::Script_NodeClass_Ns(CFXJSE_Value* pValue,
                                     FX_BOOL bSetting,
                                     XFA_ATTRIBUTE eAttribute) {
   if (bSetting) {
     ThrowScriptErrorMessage(XFA_IDS_INVAlID_PROP_SET);
   } else {
     CFX_WideString wsNameSpace;
     TryNamespace(wsNameSpace);
     FXJSE_Value_SetUTF8String(pValue, FX_UTF8Encode(wsNameSpace).AsStringC());
   }
@@ skipping 4182 matching lines @@
   return m_pAttachNode->InsertChild(pNewNode, pBeforeNode);
 }
 FX_BOOL CXFA_AttachNodeList::Remove(CXFA_Node* pNode) {
   return m_pAttachNode->RemoveChild(pNode);
 }
 CXFA_Node* CXFA_AttachNodeList::Item(int32_t iIndex) {
   return m_pAttachNode->GetChild(
       iIndex, XFA_ELEMENT_UNKNOWN,
       m_pAttachNode->GetClassID() == XFA_ELEMENT_Subform);
 }