Remove friends from CXML_Element

This CL removes the friends from CXML_Element and adds accessors as
needed.

Change-Id: I4f76935caa753a063bef4ff2d043273ae4e14e14
Reviewed-on: https://pdfium-review.googlesource.com/15535
Reviewed-by: Ryan Harrison <rharrison@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>

2 files changed, 14 insertions, 7 deletions

diff --git a/core/fxcrt/xml/cxml_element.h b/core/fxcrt/xml/cxml_element.h
index 40ebe385b7..a851a86f1c 100644
--- a/core/fxcrt/xml/cxml_element.h
+++ b/core/fxcrt/xml/cxml_element.h
@@ -8,6 +8,7 @@
 #define CORE_FXCRT_XML_CXML_ELEMENT_H_
 
 #include <memory>
+#include <utility>
 #include <vector>
 
 #include "core/fxcrt/xml/cxml_attrmap.h"
@@ -87,6 +88,10 @@ class CXML_Element : public CXML_Object {
     return attr;
   }
 
+  void AppendChild(std::unique_ptr<CXML_Object> child) {
+    m_Children.push_back(std::move(child));
+  }
+
   uint32_t CountChildren() const { return m_Children.size(); }
   uint32_t CountElements(const ByteStringView& space,
                          const ByteStringView& tag) const;
@@ -98,10 +103,13 @@ class CXML_Element : public CXML_Object {
   void SetTag(const ByteStringView& qTagName);
   void RemoveChild(uint32_t index);
 
- private:
-  friend class CXML_Parser;
-  friend class CXML_Composer;
+  void SetAttribute(const ByteString& space,
+                    const ByteString& name,
+                    const WideString& value) {
+    m_AttrMap.SetAt(space, name, value);
+  }
 
+ private:
   UnownedPtr<const CXML_Element> const m_pParent;
   ByteString m_QSpaceName;
   ByteString m_TagName;
diff --git a/core/fxcrt/xml/cxml_parser.cpp b/core/fxcrt/xml/cxml_parser.cpp
index adf83c7148..062b5bec07 100644
--- a/core/fxcrt/xml/cxml_parser.cpp
+++ b/core/fxcrt/xml/cxml_parser.cpp
@@ -424,7 +424,7 @@ std::unique_ptr<CXML_Element> CXML_Parser::ParseElementInternal(
 
       WideString attr_value;
       GetAttrValue(attr_value);
-      pElement->m_AttrMap.SetAt(attr_space, attr_name, attr_value);
+      pElement->SetAttribute(attr_space, attr_name, attr_value);
     }
     m_nOffset = m_nBufferOffset + static_cast<FX_FILESIZE>(m_dwIndex);
     if (m_dwIndex < m_dwBufferSize || IsEOF())
@@ -498,7 +498,7 @@ std::unique_ptr<CXML_Element> CXML_Parser::ParseElementInternal(
             if (!pSubElement)
               break;
 
-            pElement->m_Children.push_back(std::move(pSubElement));
+            pElement->AppendChild(std::move(pSubElement));
             SkipWhiteSpaces();
           }
           break;
@@ -541,6 +541,5 @@ void CXML_Parser::InsertContentSegment(bool bCDATA,
   if (content.IsEmpty())
     return;
 
-  pElement->m_Children.push_back(
-      pdfium::MakeUnique<CXML_Content>(bCDATA, content));
+  pElement->AppendChild(pdfium::MakeUnique<CXML_Content>(bCDATA, content));
 }