Start using allowed C++11 features.

core/src/fpdfapi/fpdf_render/fpdf_render_image.cpp

Index: core/src/fpdfapi/fpdf_render/fpdf_render_image.cpp
diff --git a/core/src/fpdfapi/fpdf_render/fpdf_render_image.cpp b/core/src/fpdfapi/fpdf_render/fpdf_render_image.cpp
index ea6195dc8efd3bb2757d0f71fdfcb38007893a05..0afd8f072af14039efe922a4558779a368347e4f 100644
--- a/core/src/fpdfapi/fpdf_render/fpdf_render_image.cpp
+++ b/core/src/fpdfapi/fpdf_render/fpdf_render_image.cpp
@@ -6,6 +6,8 @@
 
 #include "render_int.h"
 
+#include <utility>
+
 #include "core/include/fpdfapi/fpdf_module.h"
 #include "core/include/fpdfapi/fpdf_pageobj.h"
 #include "core/include/fpdfapi/fpdf_render.h"
@@ -126,7 +128,7 @@ void CPDF_RenderStatus::CompositeDIBitmap(CFX_DIBitmap* pDIBitmap,
   pBackdrop1->Clear((FX_DWORD)-1);
   pBackdrop1->CompositeBitmap(0, 0, pBackdrop->GetWidth(),
                               pBackdrop->GetHeight(), pBackdrop.get(), 0, 0);
-  pBackdrop = nonstd::move(pBackdrop1);
+  pBackdrop = std::move(pBackdrop1);
   m_pDevice->SetDIBits(pBackdrop.get(), back_left, back_top);
 }