Make code compile with clang_use_chrome_plugin (part I)

core/fpdfapi/fpdf_page/cpdf_pathobject.cpp

Index: core/fpdfapi/fpdf_page/cpdf_pathobject.cpp
diff --git a/core/fpdfapi/fpdf_page/cpdf_pathobject.cpp b/core/fpdfapi/fpdf_page/cpdf_pathobject.cpp
index cfe7b48c8ba7a3e461cf68f7e6452fb5c7af0838..b62a5bd25aed421622d58c9e783b04a46be40e94 100644
--- a/core/fpdfapi/fpdf_page/cpdf_pathobject.cpp
+++ b/core/fpdfapi/fpdf_page/cpdf_pathobject.cpp
@@ -21,11 +21,27 @@ CPDF_PathObject* CPDF_PathObject::Clone() const {
   return obj;
 }
 
+CPDF_PageObject::Type CPDF_PathObject::GetType() const {
+  return PATH;
+}
+
 void CPDF_PathObject::Transform(const CFX_Matrix& matrix) {
   m_Matrix.Concat(matrix);
   CalcBoundingBox();
 }
 
+bool CPDF_PathObject::IsPath() const {
+  return true;
+}
+
+CPDF_PathObject* CPDF_PathObject::AsPath() {
+  return this;
+}
+
+const CPDF_PathObject* CPDF_PathObject::AsPath() const {
+  return this;
+}
+
 void CPDF_PathObject::CalcBoundingBox() {
   if (m_Path.IsNull()) {
     return;