Remove uncalled IFXA_WidgetIterator::Reset() and its overrides.

Inline only call into constructor.

Change-Id: I1f6aa4ea5ee063415e9be852a0cf32e441bce03b
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/79518
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>

xfa/fxfa/cxfa_ffpageview.cpp

diff --git a/xfa/fxfa/cxfa_ffpageview.cpp b/xfa/fxfa/cxfa_ffpageview.cpp
index 5133871..bed3360 100644
--- a/xfa/fxfa/cxfa_ffpageview.cpp
+++ b/xfa/fxfa/cxfa_ffpageview.cpp
@@ -290,10 +290,6 @@
 
 CXFA_FFPageWidgetIterator::~CXFA_FFPageWidgetIterator() = default;
 
-void CXFA_FFPageWidgetIterator::Reset() {
-  m_sIterator.Reset();
-}
-
 CXFA_FFWidget* CXFA_FFPageWidgetIterator::MoveToFirst() {
   m_sIterator.Reset();
   for (CXFA_LayoutItem* pLayoutItem = m_sIterator.GetCurrent(); pLayoutItem;
@@ -348,7 +344,7 @@
     : m_pPageViewLayout(pPageView->GetLayoutItem()),
       m_dwFilter(dwFilter),
       m_bIgnoreRelevant(IsDocVersionBelow205(GetDocForPageView(pPageView))) {
-  Reset();
+  CreateTabOrderWidgetArray();
 }
 
 CXFA_FFTabOrderPageWidgetIterator::~CXFA_FFTabOrderPageWidgetIterator() =
@@ -359,11 +355,6 @@
   ContainerTrace(visitor, m_TabOrderWidgetArray);
 }
 
-void CXFA_FFTabOrderPageWidgetIterator::Reset() {
-  CreateTabOrderWidgetArray();
-  m_iCurWidget = -1;
-}
-
 CXFA_FFWidget* CXFA_FFTabOrderPageWidgetIterator::MoveToFirst() {
   for (int32_t i = 0;
        i < pdfium::CollectionSize<int32_t>(m_TabOrderWidgetArray); i++) {

xfa/fxfa/cxfa_ffpageview.h

diff --git a/xfa/fxfa/cxfa_ffpageview.h b/xfa/fxfa/cxfa_ffpageview.h
index cd0baac..c8488a1 100644
--- a/xfa/fxfa/cxfa_ffpageview.h
+++ b/xfa/fxfa/cxfa_ffpageview.h
@@ -57,7 +57,7 @@
 
   void Trace(cppgc::Visitor* visitor) const {}
 
-  void Reset() override;
+  // IXFA_WidgetIterator:
   CXFA_FFWidget* MoveToFirst() override;
   CXFA_FFWidget* MoveToLast() override;
   CXFA_FFWidget* MoveToNext() override;
@@ -82,7 +82,7 @@
 
   void Trace(cppgc::Visitor* visitor) const;
 
-  void Reset() override;
+  // IXFA_WidgetIterator:
   CXFA_FFWidget* MoveToFirst() override;
   CXFA_FFWidget* MoveToLast() override;
   CXFA_FFWidget* MoveToNext() override;

xfa/fxfa/fxfa.h

diff --git a/xfa/fxfa/fxfa.h b/xfa/fxfa/fxfa.h
index b0b25ee..ae21363 100644
--- a/xfa/fxfa/fxfa.h
+++ b/xfa/fxfa/fxfa.h
@@ -257,7 +257,6 @@
  public:
   virtual ~IXFA_WidgetIterator() = default;
 
-  virtual void Reset() = 0;
   virtual CXFA_FFWidget* MoveToFirst() = 0;
   virtual CXFA_FFWidget* MoveToLast() = 0;
   virtual CXFA_FFWidget* MoveToNext() = 0;