Merge to XFA: Replace some CFX_MapPtrTemplates with std::map.

There are more CFX_MapPtrTemplate usage on the XFA branch, so it is
not removed.

R=tsepez@chromium.org

Review URL: https://codereview.chromium.org/1181593003.

(cherry picked from commit e8d3691c82d1be805ffdce3329d00313af7ce0ab)

Review URL: https://codereview.chromium.org/1198663004.

3 files changed, 111 insertions, 153 deletions

diff --git a/fpdfsdk/src/formfiller/FFL_FormFiller.cpp b/fpdfsdk/src/formfiller/FFL_FormFiller.cpp
index 540619692b..7a70493d4c 100644
--- a/fpdfsdk/src/formfiller/FFL_FormFiller.cpp
+++ b/fpdfsdk/src/formfiller/FFL_FormFiller.cpp
@@ -28,23 +28,14 @@ CFFL_FormFiller::CFFL_FormFiller(CPDFDoc_Environment* pApp, CPDFSDK_Annot* pAnno
 
 CFFL_FormFiller::~CFFL_FormFiller()
 {
-	FX_POSITION pos = m_Maps.GetStartPosition();
-	while (pos)
-	{
-		CPDFSDK_PageView * pPageView = NULL;
-		CPWL_Wnd* pWnd = NULL;
-		m_Maps.GetNextAssoc(pos, pPageView, pWnd);
-
-		if (pWnd)
-		{
-			CFFL_PrivateData* pData = (CFFL_PrivateData*)pWnd->GetAttachedData();
-			pWnd->Destroy();
-			delete pWnd;
-			delete pData;
-		}
-	}
-	m_Maps.RemoveAll();
-
+    for (auto& it : m_Maps) {
+        CPWL_Wnd* pWnd = it.second;
+        CFFL_PrivateData* pData = (CFFL_PrivateData*)pWnd->GetAttachedData();
+        pWnd->Destroy();
+        delete pWnd;
+        delete pData;
+    }
+    m_Maps.clear();
 }
 
 void CFFL_FormFiller::SetWindowRect(CPDFSDK_PageView* pPageView, const CPDF_Rect& rcWindow)
@@ -430,64 +421,53 @@ PWL_CREATEPARAM	CFFL_FormFiller::GetCreateParam()
 
 CPWL_Wnd* CFFL_FormFiller::GetPDFWindow(CPDFSDK_PageView* pPageView, FX_BOOL bNew)
 {
-	ASSERT(pPageView != NULL);
-	ASSERT(m_pWidget != NULL);
+    ASSERT(pPageView);
 
-	CPWL_Wnd* pWnd = NULL;
-	m_Maps.Lookup(pPageView, pWnd);
+    auto it = m_Maps.find(pPageView);
+    const bool found = it != m_Maps.end();
+    CPWL_Wnd* pWnd = found ? it->second : nullptr;
+    if (!bNew)
+        return pWnd;
 
-	if (bNew)
-	{
-		if (pWnd)
-		{
-			CFFL_PrivateData* pPrivateData = (CFFL_PrivateData*)pWnd->GetAttachedData();
-			ASSERT(pPrivateData != NULL);
+    if (found) {
+        CFFL_PrivateData* pPrivateData =
+            (CFFL_PrivateData*)pWnd->GetAttachedData();
+        if (pPrivateData->nWidgetAge != m_pWidget->GetAppearanceAge()) {
+            return ResetPDFWindow(
+                pPageView, m_pWidget->GetValueAge() == pPrivateData->nValueAge);
+      }
+    } else {
+      PWL_CREATEPARAM cp = GetCreateParam();
+      cp.hAttachedWnd = (FX_HWND)m_pWidget;
 
-			if (pPrivateData->nWidgetAge != m_pWidget->GetAppearanceAge())
-			{
-				return ResetPDFWindow(pPageView, m_pWidget->GetValueAge() == pPrivateData->nValueAge);
-			}
-		}
-		else
-		{
-			PWL_CREATEPARAM cp = GetCreateParam();
-			cp.hAttachedWnd = (FX_HWND)m_pWidget;
+      CFFL_PrivateData* pPrivateData = new CFFL_PrivateData;
+      pPrivateData->pWidget = m_pWidget;
+      pPrivateData->pPageView = pPageView;
+      pPrivateData->nWidgetAge = m_pWidget->GetAppearanceAge();
+      pPrivateData->nValueAge = 0;
 
-			CFFL_PrivateData* pPrivateData = new CFFL_PrivateData;
-			pPrivateData->pWidget = m_pWidget;
-			pPrivateData->pPageView = pPageView;
-			pPrivateData->nWidgetAge = m_pWidget->GetAppearanceAge();
-                        pPrivateData->nValueAge = 0;
+      cp.pAttachedData = pPrivateData;
 
-			cp.pAttachedData = pPrivateData;
+      pWnd = NewPDFWindow(cp, pPageView);
+      m_Maps[pPageView] = pWnd;
+    }
 
-			pWnd = NewPDFWindow(cp, pPageView);
-
-			if (pWnd)
-			{
-				m_Maps.SetAt(pPageView, pWnd);
-			}
-		}
-	}
-
-	return pWnd;
+    return pWnd;
 }
 
 void CFFL_FormFiller::DestroyPDFWindow(CPDFSDK_PageView* pPageView)
 {
-	CPWL_Wnd* pWnd = NULL;
-	m_Maps.Lookup(pPageView, pWnd);
+    auto it = m_Maps.find(pPageView);
+    if (it == m_Maps.end())
+        return;
 
-	if (pWnd)
-	{
-		CFFL_PrivateData* pData = (CFFL_PrivateData*)pWnd->GetAttachedData();
-		pData->pPageView = NULL;
-		pWnd->Destroy();
-		delete pWnd;
-		delete pData;
-	}
+    CPWL_Wnd* pWnd = it->second;
+    CFFL_PrivateData* pData = (CFFL_PrivateData*)pWnd->GetAttachedData();
+    pWnd->Destroy();
+    delete pWnd;
+    delete pData;
 
-	m_Maps.RemoveKey(pPageView);
+    m_Maps.erase(it);
 }
 
 CPDF_Matrix	CFFL_FormFiller::GetWindowMatrix(void* pAttachedData)
diff --git a/fpdfsdk/src/formfiller/FFL_IFormFiller.cpp b/fpdfsdk/src/formfiller/FFL_IFormFiller.cpp
index d4ca0235b3..66ae237a31 100644
--- a/fpdfsdk/src/formfiller/FFL_IFormFiller.cpp
+++ b/fpdfsdk/src/formfiller/FFL_IFormFiller.cpp
@@ -28,15 +28,9 @@ CFFL_IFormFiller::CFFL_IFormFiller(CPDFDoc_Environment* pApp) :
 
 CFFL_IFormFiller::~CFFL_IFormFiller()
 {
-	FX_POSITION pos = m_Maps.GetStartPosition();
-	while (pos)
-	{
-		CPDFSDK_Annot * pAnnot = NULL;
-		CFFL_FormFiller * pFormFiller = NULL;
-		m_Maps.GetNextAssoc(pos,pAnnot,pFormFiller);
-		delete pFormFiller;
-	}
-	m_Maps.RemoveAll();
+    for (auto& it : m_Maps)
+        delete it.second;
+    m_Maps.clear();
 }
 
 FX_BOOL	CFFL_IFormFiller::Annot_HitTest(CPDFSDK_PageView* pPageView,CPDFSDK_Annot* pAnnot, CPDF_Point point)
@@ -648,53 +642,46 @@ FX_BOOL	CFFL_IFormFiller::IsFillingAllowed(CPDFSDK_Widget* pWidget)
 
 CFFL_FormFiller* CFFL_IFormFiller::GetFormFiller(CPDFSDK_Annot* pAnnot, FX_BOOL bRegister)
 {
-// 	ASSERT(pAnnot != NULL);
-// 	ASSERT(pAnnot->GetPDFAnnot()->GetSubType() == "Widget");
-
-	CFFL_FormFiller * pFormFiller = NULL;
-	m_Maps.Lookup(pAnnot, pFormFiller);
-
-	if (pFormFiller)
-		return pFormFiller;
-
-	if (bRegister)
-	{
-		CPDFSDK_Widget* pWidget = (CPDFSDK_Widget*)pAnnot;
-
-		int nFieldType = pWidget->GetFieldType();
-		switch(nFieldType)
-		{
- 		case FIELDTYPE_PUSHBUTTON:
- 			pFormFiller = new CFFL_PushButton(m_pApp, pWidget);
- 			break;
-		case FIELDTYPE_CHECKBOX:
-			pFormFiller = new CFFL_CheckBox(m_pApp, pWidget);
-			break;
- 		case FIELDTYPE_RADIOBUTTON:
- 			pFormFiller = new CFFL_RadioButton(m_pApp, pWidget);
- 			break;
- 		case FIELDTYPE_TEXTFIELD:
-			pFormFiller = new CFFL_TextField(m_pApp, pWidget);
-			break;
-		case FIELDTYPE_LISTBOX:
-			pFormFiller = new CFFL_ListBox(m_pApp, pWidget);
-			break;
-		case FIELDTYPE_COMBOBOX:
-			pFormFiller = new CFFL_ComboBox(m_pApp, pWidget);
-			break;
-		case FIELDTYPE_UNKNOWN:
-		default:
-			pFormFiller = NULL;
-			break;
-		}
+    auto it = m_Maps.find(pAnnot);
+    if (it != m_Maps.end())
+        return it->second;
+
+    if (!bRegister)
+        return nullptr;
+
+    CPDFSDK_Widget* pWidget = (CPDFSDK_Widget*)pAnnot;
+    int nFieldType = pWidget->GetFieldType();
+    CFFL_FormFiller* pFormFiller;
+    switch (nFieldType) {
+        case FIELDTYPE_PUSHBUTTON:
+            pFormFiller = new CFFL_PushButton(m_pApp, pWidget);
+            break;
+        case FIELDTYPE_CHECKBOX:
+            pFormFiller = new CFFL_CheckBox(m_pApp, pWidget);
+            break;
+      case FIELDTYPE_RADIOBUTTON:
+            pFormFiller = new CFFL_RadioButton(m_pApp, pWidget);
+            break;
+      case FIELDTYPE_TEXTFIELD:
+            pFormFiller = new CFFL_TextField(m_pApp, pWidget);
+            break;
+      case FIELDTYPE_LISTBOX:
+            pFormFiller = new CFFL_ListBox(m_pApp, pWidget);
+            break;
+      case FIELDTYPE_COMBOBOX:
+            pFormFiller = new CFFL_ComboBox(m_pApp, pWidget);
+            break;
+      case FIELDTYPE_UNKNOWN:
+      default:
+            pFormFiller = nullptr;
+            break;
+    }
 
-		if (pFormFiller)
-		{
-			m_Maps.SetAt(pAnnot, pFormFiller);
-		}
-	}
+    if (!pFormFiller)
+        return nullptr;
 
-	return pFormFiller;
+    m_Maps[pAnnot] = pFormFiller;
+    return pFormFiller;
 }
 
 void CFFL_IFormFiller::RemoveFormFiller(CPDFSDK_Annot* pAnnot)
@@ -707,11 +694,12 @@ void CFFL_IFormFiller::RemoveFormFiller(CPDFSDK_Annot* pAnnot)
 
 void CFFL_IFormFiller::UnRegisterFormFiller(CPDFSDK_Annot* pAnnot)
 {
-    CFFL_FormFiller* pFormFiller = nullptr;
-    if (m_Maps.Lookup(pAnnot,pFormFiller)) {
-        delete pFormFiller;
-        m_Maps.RemoveKey(pAnnot);
-    }
+    auto it = m_Maps.find(pAnnot);
+    if (it == m_Maps.end())
+        return;
+
+    delete it->second;
+    m_Maps.erase(it);
 }
 
 void CFFL_IFormFiller::SetFocusAnnotTab(CPDFSDK_Annot* pWidget, FX_BOOL bSameField, FX_BOOL bNext)
diff --git a/fpdfsdk/src/formfiller/FFL_ListBox.cpp b/fpdfsdk/src/formfiller/FFL_ListBox.cpp
index 4622d4fcef..28dcf340ad 100644
--- a/fpdfsdk/src/formfiller/FFL_ListBox.cpp
+++ b/fpdfsdk/src/formfiller/FFL_ListBox.cpp
@@ -75,7 +75,7 @@ CPWL_Wnd* CFFL_ListBox::NewPDFWindow(const PWL_CREATEPARAM& cp, CPDFSDK_PageView
 
 	if (pWnd->HasFlag(PLBS_MULTIPLESEL))
 	{
-		m_OriginSelections.RemoveAll();
+		m_OriginSelections.clear();
 
 		FX_BOOL bSetCaret = FALSE;
 		for (int32_t i=0,sz=m_pWidget->CountOptions(); i<sz; i++)
@@ -88,7 +88,7 @@ CPWL_Wnd* CFFL_ListBox::NewPDFWindow(const PWL_CREATEPARAM& cp, CPDFSDK_PageView
 					bSetCaret = TRUE;
 				}
 				pWnd->Select(i);
-				m_OriginSelections.SetAt(i, NULL);
+				m_OriginSelections.insert(i);
 			}
 		}
 	}
@@ -115,36 +115,26 @@ FX_BOOL	CFFL_ListBox::OnChar(CPDFSDK_Annot* pAnnot, FX_UINT nChar, FX_UINT nFlag
 	return CFFL_FormFiller::OnChar(pAnnot, nChar, nFlags);
 }
 
-FX_BOOL	CFFL_ListBox::IsDataChanged(CPDFSDK_PageView* pPageView)
+FX_BOOL CFFL_ListBox::IsDataChanged(CPDFSDK_PageView* pPageView)
 {
-	ASSERT(m_pWidget != NULL);
-
-	if (CPWL_ListBox* pListBox = (CPWL_ListBox*)GetPDFWindow(pPageView, FALSE))
-	{
-		if (m_pWidget->GetFieldFlags() & FIELDFLAG_MULTISELECT)
-		{
-			int nSelCount = 0;
-			for (int32_t i=0,sz=pListBox->GetCount(); i<sz; i++)
-			{
-				if (pListBox->IsItemSelected(i))
-				{
-					void* p = NULL;
-					if (!m_OriginSelections.Lookup(i, p))
-						return TRUE;
-
-					nSelCount++;
-				}
-			}
-
-			return nSelCount != m_OriginSelections.GetCount();
-		}
-		else
-		{
-			return pListBox->GetCurSel() != m_pWidget->GetSelectedIndex(0);
-		}
-	}
-
-	return FALSE;
+    CPWL_ListBox* pListBox = (CPWL_ListBox*)GetPDFWindow(pPageView, FALSE);
+    if (!pListBox)
+        return FALSE;
+
+    if (m_pWidget->GetFieldFlags() & FIELDFLAG_MULTISELECT) {
+        int nSelCount = 0;
+        for (int32_t i = 0, sz = pListBox->GetCount(); i < sz; ++i) {
+            if (pListBox->IsItemSelected(i)) {
+                if (m_OriginSelections.count(i) == 0)
+                    return TRUE;
+
+                nSelCount++;
+            }
+        }
+
+        return nSelCount != m_OriginSelections.size();
+    }
+    return pListBox->GetCurSel() != m_pWidget->GetSelectedIndex(0);
 }
 
 void CFFL_ListBox::SaveData(CPDFSDK_PageView* pPageView)