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

core/fpdfapi/render/cpdf_imagerenderer.cpp

 // Copyright 2016 PDFium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
 
 #include "core/fpdfapi/render/cpdf_imagerenderer.h"
 
 #include <algorithm>
 #include <memory>
@@ skipping 10 matching lines @@
 #include "core/fpdfapi/parser/cpdf_document.h"
 #include "core/fpdfapi/render/cpdf_pagerendercache.h"
 #include "core/fpdfapi/render/cpdf_rendercontext.h"
 #include "core/fpdfapi/render/cpdf_renderstatus.h"
 #include "core/fpdfapi/render/cpdf_transferfunc.h"
 #include "core/fpdfapi/render/render_int.h"
 #include "core/fpdfdoc/cpdf_occontext.h"
 #include "core/fxcrt/fx_safe_types.h"
 #include "core/fxge/cfx_fxgedevice.h"
 #include "core/fxge/cfx_pathdata.h"
+#include "third_party/base/ptr_util.h"
 
 #ifdef _SKIA_SUPPORT_
 #include "core/fxge/skia/fx_skia_device.h"
 #endif
 
 CPDF_ImageRenderer::CPDF_ImageRenderer() {
   m_pRenderStatus = nullptr;
   m_pImageObject = nullptr;
   m_Result = true;
   m_Status = 0;
@@ skipping 389 matching lines @@
   if ((FXSYS_fabs(m_ImageMatrix.b) >= 0.5f || m_ImageMatrix.a == 0) ||
       (FXSYS_fabs(m_ImageMatrix.c) >= 0.5f || m_ImageMatrix.d == 0)) {
     if (NotDrawing()) {
       m_Result = false;
       return false;
     }
 
     FX_RECT clip_box = m_pRenderStatus->m_pDevice->GetClipBox();
     clip_box.Intersect(image_rect);
     m_Status = 2;
-    m_pTransformer.reset(new CFX_ImageTransformer(m_pDIBSource, &m_ImageMatrix,
-                                                  m_Flags, &clip_box));
+    m_pTransformer = pdfium::MakeUnique<CFX_ImageTransformer>(
+        m_pDIBSource, &m_ImageMatrix, m_Flags, &clip_box);
     m_pTransformer->Start();
     return true;
   }
   if (m_ImageMatrix.a < 0)
     dest_width = -dest_width;
 
   if (m_ImageMatrix.d > 0)
     dest_height = -dest_height;
 
   int dest_left = dest_width > 0 ? image_rect.left : image_rect.right;
@@ skipping 106 matching lines @@
 
   if (m_Status == 4) {
     if (m_Loader.Continue(pPause))
       return true;
 
     if (StartRenderDIBSource())
       return Continue(pPause);
   }
   return false;
 }