Replace m_bIsContentLayoutItem with proper enum for type.

Because bools are bogus.

Change-Id: I54a2627443784cec40912288230e657c63a35408
Reviewed-on: https://pdfium-review.googlesource.com/39190
Commit-Queue: Tom Sepez <tsepez@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>

xfa/fxfa/parser/cxfa_containerlayoutitem.cpp

diff --git a/xfa/fxfa/parser/cxfa_containerlayoutitem.cpp b/xfa/fxfa/parser/cxfa_containerlayoutitem.cpp
index 47da2b1..f5af3a3 100644
--- a/xfa/fxfa/parser/cxfa_containerlayoutitem.cpp
+++ b/xfa/fxfa/parser/cxfa_containerlayoutitem.cpp
@@ -14,7 +14,7 @@
 #include "xfa/fxfa/parser/cxfa_node.h"
 
 CXFA_ContainerLayoutItem::CXFA_ContainerLayoutItem(CXFA_Node* pNode)
-    : CXFA_LayoutItem(pNode, false) {}
+    : CXFA_LayoutItem(pNode, kContainerItem) {}
 
 CXFA_ContainerLayoutItem::~CXFA_ContainerLayoutItem() = default;
 

xfa/fxfa/parser/cxfa_contentlayoutitem.cpp

diff --git a/xfa/fxfa/parser/cxfa_contentlayoutitem.cpp b/xfa/fxfa/parser/cxfa_contentlayoutitem.cpp
index e763e2d..b3ceb9e 100644
--- a/xfa/fxfa/parser/cxfa_contentlayoutitem.cpp
+++ b/xfa/fxfa/parser/cxfa_contentlayoutitem.cpp
@@ -11,10 +11,7 @@
 #include "xfa/fxfa/parser/cxfa_node.h"
 
 CXFA_ContentLayoutItem::CXFA_ContentLayoutItem(CXFA_Node* pNode)
-    : CXFA_LayoutItem(pNode, true),
-      m_pPrev(nullptr),
-      m_pNext(nullptr),
-      m_dwStatus(0) {}
+    : CXFA_LayoutItem(pNode, kContentItem) {}
 
 CXFA_ContentLayoutItem::~CXFA_ContentLayoutItem() {
   if (m_pFormNode->JSObject()->GetLayoutItem() == this)

xfa/fxfa/parser/cxfa_contentlayoutitem.h

diff --git a/xfa/fxfa/parser/cxfa_contentlayoutitem.h b/xfa/fxfa/parser/cxfa_contentlayoutitem.h
index c7c440f..fc91f3b 100644
--- a/xfa/fxfa/parser/cxfa_contentlayoutitem.h
+++ b/xfa/fxfa/parser/cxfa_contentlayoutitem.h
@@ -23,11 +23,11 @@
   int32_t GetIndex() const;
   int32_t GetCount() const;
 
-  CXFA_ContentLayoutItem* m_pPrev;
-  CXFA_ContentLayoutItem* m_pNext;
+  CXFA_ContentLayoutItem* m_pPrev = nullptr;
+  CXFA_ContentLayoutItem* m_pNext = nullptr;
   CFX_PointF m_sPos;
   CFX_SizeF m_sSize;
-  mutable uint32_t m_dwStatus;
+  mutable uint32_t m_dwStatus = 0;
 };
 
 inline CXFA_ContentLayoutItem* ToContentLayoutItem(CXFA_LayoutItem* pItem) {

xfa/fxfa/parser/cxfa_layoutitem.cpp

diff --git a/xfa/fxfa/parser/cxfa_layoutitem.cpp b/xfa/fxfa/parser/cxfa_layoutitem.cpp
index 8b1c30e..5dd0367 100644
--- a/xfa/fxfa/parser/cxfa_layoutitem.cpp
+++ b/xfa/fxfa/parser/cxfa_layoutitem.cpp
@@ -34,8 +34,8 @@
   delete pLayoutItem;
 }
 
-CXFA_LayoutItem::CXFA_LayoutItem(CXFA_Node* pNode, bool bIsContentLayoutItem)
-    : m_bIsContentLayoutItem(bIsContentLayoutItem), m_pFormNode(pNode) {}
+CXFA_LayoutItem::CXFA_LayoutItem(CXFA_Node* pNode, ItemType type)
+    : m_ItemType(type), m_pFormNode(pNode) {}
 
 CXFA_LayoutItem::~CXFA_LayoutItem() = default;
 

xfa/fxfa/parser/cxfa_layoutitem.h

diff --git a/xfa/fxfa/parser/cxfa_layoutitem.h b/xfa/fxfa/parser/cxfa_layoutitem.h
index f5568df..c9b2859 100644
--- a/xfa/fxfa/parser/cxfa_layoutitem.h
+++ b/xfa/fxfa/parser/cxfa_layoutitem.h
@@ -18,8 +18,8 @@
  public:
   virtual ~CXFA_LayoutItem();
 
-  bool IsContainerLayoutItem() const { return !m_bIsContentLayoutItem; }
-  bool IsContentLayoutItem() const { return m_bIsContentLayoutItem; }
+  bool IsContainerLayoutItem() const { return m_ItemType == kContainerItem; }
+  bool IsContentLayoutItem() const { return m_ItemType == kContentItem; }
   CXFA_ContainerLayoutItem* AsContainerLayoutItem();
   CXFA_ContentLayoutItem* AsContentLayoutItem();
 
@@ -28,7 +28,6 @@
   CXFA_Node* GetFormNode() const { return m_pFormNode.Get(); }
   void SetFormNode(CXFA_Node* pNode) { m_pFormNode = pNode; }
 
-
   void AddChild(CXFA_LayoutItem* pChildItem);
   void AddHeadChild(CXFA_LayoutItem* pChildItem);
   void RemoveChild(CXFA_LayoutItem* pChildItem);
@@ -39,9 +38,10 @@
   CXFA_LayoutItem* m_pFirstChild = nullptr;   // Raw, intra-tree pointer.
 
  protected:
-  CXFA_LayoutItem(CXFA_Node* pNode, bool bIsContentLayoutItem);
+  enum ItemType { kContainerItem, kContentItem };
+  CXFA_LayoutItem(CXFA_Node* pNode, ItemType type);
 
-  bool m_bIsContentLayoutItem;
+  const ItemType m_ItemType;
   UnownedPtr<CXFA_Node> m_pFormNode;
 };