Avoid the ptr.reset(new XXX()) anti-pattern

core/fpdfapi/page/cpdf_page.cpp

Index: core/fpdfapi/page/cpdf_page.cpp
diff --git a/core/fpdfapi/page/cpdf_page.cpp b/core/fpdfapi/page/cpdf_page.cpp
index b4e2e67939af61447ff6d9859ffe2d410f25280a..f9c02837a755bd8afe2ead9fb05ed94b0581c638 100644
--- a/core/fpdfapi/page/cpdf_page.cpp
+++ b/core/fpdfapi/page/cpdf_page.cpp
@@ -17,6 +17,7 @@
 #include "core/fpdfapi/parser/cpdf_dictionary.h"
 #include "core/fpdfapi/parser/cpdf_object.h"
 #include "core/fpdfapi/render/cpdf_pagerendercache.h"
+#include "third_party/base/ptr_util.h"
 #include "third_party/base/stl_util.h"
 
 CPDF_Page::CPDF_Page(CPDF_Document* pDocument,
@@ -88,7 +89,7 @@ void CPDF_Page::StartParse() {
   if (m_ParseState == CONTENT_PARSED || m_ParseState == CONTENT_PARSING)
     return;
 
-  m_pParser.reset(new CPDF_ContentParser);
+  m_pParser = pdfium::MakeUnique<CPDF_ContentParser>();
   m_pParser->Start(this);
   m_ParseState = CONTENT_PARSING;
 }