Get rid of most uses of CFX_PtrArray.

core/src/fpdfapi/fpdf_edit/fpdf_edit_content.cpp

Index: core/src/fpdfapi/fpdf_edit/fpdf_edit_content.cpp
diff --git a/core/src/fpdfapi/fpdf_edit/fpdf_edit_content.cpp b/core/src/fpdfapi/fpdf_edit/fpdf_edit_content.cpp
index 59fa1afb50b02a2b5de4d02adc989ce13a52a56b..36dbb97a6cd3d0f7748fecbab634ddf36f3824a4 100644
--- a/core/src/fpdfapi/fpdf_edit/fpdf_edit_content.cpp
+++ b/core/src/fpdfapi/fpdf_edit/fpdf_edit_content.cpp
@@ -37,7 +37,7 @@ void CPDF_PageContentGenerate::GenerateContent() {
   CFX_ByteTextBuf buf;
   CPDF_Dictionary* pPageDict = m_pPage->m_pFormDict;
   for (int i = 0; i < m_pageObjects.GetSize(); ++i) {
-    CPDF_PageObject* pPageObj = (CPDF_PageObject*)m_pageObjects[i];
+    CPDF_PageObject* pPageObj = m_pageObjects[i];
     if (!pPageObj || pPageObj->m_Type != PDFPAGE_IMAGE) {
       continue;
     }