Remove unused CFWL_WidgetMgr::GetSameGroupRadioButton().

In turn, remove other CFWL_WidgetMgr methods made unused
by this change. In turn, CFWL_Widget::GetStyles() becomes
unused.

Change-Id: I169790b7e2566b37ac81d1bd0aba73f99f3d0132
Reviewed-on: https://pdfium-review.googlesource.com/c/49411
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>

xfa/fwl/cfwl_widget.cpp

diff --git a/xfa/fwl/cfwl_widget.cpp b/xfa/fwl/cfwl_widget.cpp
index 8e7ba77..0150bbb 100644
--- a/xfa/fwl/cfwl_widget.cpp
+++ b/xfa/fwl/cfwl_widget.cpp
@@ -83,10 +83,6 @@
   m_pWidgetMgr->SetParent(pParent, this);
 }
 
-uint32_t CFWL_Widget::GetStyles() const {
-  return m_pProperties->m_dwStyles;
-}
-
 void CFWL_Widget::ModifyStyles(uint32_t dwStylesAdded,
                                uint32_t dwStylesRemoved) {
   m_pProperties->m_dwStyles =

xfa/fwl/cfwl_widget.h

diff --git a/xfa/fwl/cfwl_widget.h b/xfa/fwl/cfwl_widget.h
index 92491a0..a1fbf62 100644
--- a/xfa/fwl/cfwl_widget.h
+++ b/xfa/fwl/cfwl_widget.h
@@ -86,7 +86,6 @@
   CFWL_Widget* GetOwner() { return m_pWidgetMgr->GetOwnerWidget(this); }
   CFWL_Widget* GetOuter() const { return m_pOuter; }
 
-  uint32_t GetStyles() const;
   void ModifyStyles(uint32_t dwStylesAdded, uint32_t dwStylesRemoved);
   uint32_t GetStylesEx() const;
   uint32_t GetStates() const;

xfa/fwl/cfwl_widgetmgr.cpp

diff --git a/xfa/fwl/cfwl_widgetmgr.cpp b/xfa/fwl/cfwl_widgetmgr.cpp
index e1659d2..bf3b7cb 100644
--- a/xfa/fwl/cfwl_widgetmgr.cpp
+++ b/xfa/fwl/cfwl_widgetmgr.cpp
@@ -263,38 +263,6 @@
   return nullptr;
 }
 
-int32_t CFWL_WidgetMgr::CountRadioButtonGroup(CFWL_Widget* pFirst) const {
-  int32_t iRet = 0;
-  CFWL_Widget* pChild = pFirst;
-  while (pChild) {
-    pChild = GetNextSiblingWidget(pChild);
-    ++iRet;
-  }
-  return iRet;
-}
-
-CFWL_Widget* CFWL_WidgetMgr::GetRadioButtonGroupHeader(
-    CFWL_Widget* pRadioButton) const {
-  CFWL_Widget* pNext = pRadioButton;
-  if (pNext && (pNext->GetStyles() & FWL_WGTSTYLE_Group))
-    return pNext;
-  return nullptr;
-}
-
-std::vector<CFWL_Widget*> CFWL_WidgetMgr::GetSameGroupRadioButton(
-    CFWL_Widget* pRadioButton) const {
-  CFWL_Widget* pFirst = GetFirstSiblingWidget(pRadioButton);
-  if (!pFirst)
-    pFirst = pRadioButton;
-
-  if (CountRadioButtonGroup(pFirst) < 2)
-    return std::vector<CFWL_Widget*>();
-
-  std::vector<CFWL_Widget*> group;
-  group.push_back(GetRadioButtonGroupHeader(pRadioButton));
-  return group;
-}
-
 CFWL_Widget* CFWL_WidgetMgr::GetDefaultButton(CFWL_Widget* pParent) const {
   if ((pParent->GetClassID() == FWL_Type::PushButton) &&
       (pParent->GetStates() & (1 << (FWL_WGTSTATE_MAX + 2)))) {

xfa/fwl/cfwl_widgetmgr.h

diff --git a/xfa/fwl/cfwl_widgetmgr.h b/xfa/fwl/cfwl_widgetmgr.h
index f3bb734..796b37e 100644
--- a/xfa/fwl/cfwl_widgetmgr.h
+++ b/xfa/fwl/cfwl_widgetmgr.h
@@ -48,9 +48,6 @@
                                 const CFX_PointF& point) const;
   CFWL_Widget* NextTab(CFWL_Widget* parent, CFWL_Widget* focus, bool& bFind);
 
-  std::vector<CFWL_Widget*> GetSameGroupRadioButton(
-      CFWL_Widget* pRadioButton) const;
-
   CFWL_Widget* GetDefaultButton(CFWL_Widget* pParent) const;
   void AddRedrawCounts(CFWL_Widget* pWidget);
 
@@ -83,12 +80,7 @@
   Item* GetWidgetMgrItem(const CFWL_Widget* pWidget) const;
 
   void AppendWidget(CFWL_Widget* pWidget);
-
-  int32_t CountRadioButtonGroup(CFWL_Widget* pFirst) const;
-  CFWL_Widget* GetRadioButtonGroupHeader(CFWL_Widget* pRadioButton) const;
-
   void ResetRedrawCounts(CFWL_Widget* pWidget);
-
   void DrawChild(CFWL_Widget* pParent,
                  const CFX_RectF& rtClip,
                  CXFA_Graphics* pGraphics,