Cleanup parts of CPDFSDK_AnnotIterator and CPDFSDK_PageView.

fpdfsdk/src/fsdk_baseform.cpp

Index: fpdfsdk/src/fsdk_baseform.cpp
diff --git a/fpdfsdk/src/fsdk_baseform.cpp b/fpdfsdk/src/fsdk_baseform.cpp
index 542ade022a372906fa05a78058ce4b9c362d2582..619668e7d7f851ebf0f258c0d792ee663c74628e 100644
--- a/fpdfsdk/src/fsdk_baseform.cpp
+++ b/fpdfsdk/src/fsdk_baseform.cpp
@@ -2461,7 +2461,7 @@ void CBA_AnnotIterator::GenerateResults() {
 
   switch (m_nTabs) {
     case BAI_STRUCTURE: {
-      for (int i = 0, sz = m_pPageView->CountAnnots(); i < sz; i++) {
+      for (size_t i = 0; i < m_pPageView->CountAnnots(); ++i) {
         CPDFSDK_Annot* pAnnot = m_pPageView->GetAnnot(i);
         ASSERT(pAnnot != NULL);
 
@@ -2473,7 +2473,7 @@ void CBA_AnnotIterator::GenerateResults() {
       CPDFSDK_SortAnnots sa;
 
       {
-        for (int i = 0, sz = m_pPageView->CountAnnots(); i < sz; i++) {
+        for (size_t i = 0; i < m_pPageView->CountAnnots(); ++i) {
           CPDFSDK_Annot* pAnnot = m_pPageView->GetAnnot(i);
           ASSERT(pAnnot != NULL);
 
@@ -2552,7 +2552,7 @@ void CBA_AnnotIterator::GenerateResults() {
       CPDFSDK_SortAnnots sa;
 
       {
-        for (int i = 0, sz = m_pPageView->CountAnnots(); i < sz; i++) {
+        for (size_t i = 0; i < m_pPageView->CountAnnots(); ++i) {
           CPDFSDK_Annot* pAnnot = m_pPageView->GetAnnot(i);
           ASSERT(pAnnot != NULL);