Remove PageObject's m_Type and add As<Type> functions

core/src/fpdfapi/fpdf_render/fpdf_render_pattern.cpp

Index: core/src/fpdfapi/fpdf_render/fpdf_render_pattern.cpp
diff --git a/core/src/fpdfapi/fpdf_render/fpdf_render_pattern.cpp b/core/src/fpdfapi/fpdf_render/fpdf_render_pattern.cpp
index 7284b627b56832ef4bd9dd1963bf77baa81aef92..ab51ae55b869d4e7f6431b00a878c92f5f3a6e5d 100644
--- a/core/src/fpdfapi/fpdf_render/fpdf_render_pattern.cpp
+++ b/core/src/fpdfapi/fpdf_render/fpdf_render_pattern.cpp
@@ -919,12 +919,12 @@ void CPDF_RenderStatus::DrawShadingPattern(CPDF_ShadingPattern* pattern,
     return;
   }
   m_pDevice->SaveState();
-  if (pPageObj->m_Type == CPDF_PageObject::PATH) {
-    if (!SelectClipPath((CPDF_PathObject*)pPageObj, pObj2Device, bStroke)) {
+  if (pPageObj->IsPath()) {
+    if (!SelectClipPath(pPageObj->AsPath(), pObj2Device, bStroke)) {
       m_pDevice->RestoreState();
       return;
     }
-  } else if (pPageObj->m_Type == CPDF_PageObject::IMAGE) {
+  } else if (pPageObj->IsImage()) {
     FX_RECT rect = pPageObj->GetBBox(pObj2Device);
     m_pDevice->SetClip_Rect(&rect);
   } else {
@@ -1001,12 +1001,12 @@ void CPDF_RenderStatus::DrawTilingPattern(CPDF_TilingPattern* pPattern,
     return;
   }
   m_pDevice->SaveState();
-  if (pPageObj->m_Type == CPDF_PageObject::PATH) {
-    if (!SelectClipPath((CPDF_PathObject*)pPageObj, pObj2Device, bStroke)) {
+  if (pPageObj->IsPath()) {
+    if (!SelectClipPath(pPageObj->AsPath(), pObj2Device, bStroke)) {
       m_pDevice->RestoreState();
       return;
     }
-  } else if (pPageObj->m_Type == CPDF_PageObject::IMAGE) {
+  } else if (pPageObj->IsImage()) {
     FX_RECT rect = pPageObj->GetBBox(pObj2Device);
     m_pDevice->SetClip_Rect(&rect);
   } else {