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

core/fpdfapi/render/cpdf_scaledrenderbuffer.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_scaledrenderbuffer.h"
 
 #include "core/fpdfapi/render/cpdf_rendercontext.h"
 #include "core/fpdfapi/render/cpdf_renderoptions.h"
 #include "core/fxge/cfx_fxgedevice.h"
 #include "core/fxge/cfx_renderdevice.h"
+#include "third_party/base/ptr_util.h"
 
 #define _FPDFAPI_IMAGESIZE_LIMIT_ (30 * 1024 * 1024)
 
 CPDF_ScaledRenderBuffer::CPDF_ScaledRenderBuffer() {}
 
 CPDF_ScaledRenderBuffer::~CPDF_ScaledRenderBuffer() {}
 
 bool CPDF_ScaledRenderBuffer::Initialize(CPDF_RenderContext* pContext,
                                          CFX_RenderDevice* pDevice,
                                          const FX_RECT& pRect,
@@ skipping 13 matching lines @@
   if (horz_size && vert_size && max_dpi) {
     int dpih =
         pDevice->GetDeviceCaps(FXDC_PIXEL_WIDTH) * 254 / (horz_size * 10);
     int dpiv =
         pDevice->GetDeviceCaps(FXDC_PIXEL_HEIGHT) * 254 / (vert_size * 10);
     if (dpih > max_dpi)
       m_Matrix.Scale((FX_FLOAT)(max_dpi) / dpih, 1.0f);
     if (dpiv > max_dpi)
       m_Matrix.Scale(1.0f, (FX_FLOAT)(max_dpi) / (FX_FLOAT)dpiv);
   }
-  m_pBitmapDevice.reset(new CFX_FxgeDevice);
+  m_pBitmapDevice = pdfium::MakeUnique<CFX_FxgeDevice>();
   FXDIB_Format dibFormat = FXDIB_Rgb;
   int32_t bpp = 24;
   if (m_pDevice->GetDeviceCaps(FXDC_RENDER_CAPS) & FXRC_ALPHA_OUTPUT) {
     dibFormat = FXDIB_Argb;
     bpp = 32;
   }
   while (1) {
     CFX_FloatRect rect(pRect);
     m_Matrix.TransformRect(rect);
     FX_RECT bitmap_rect = rect.GetOuterRect();
@@ skipping 13 matching lines @@
                             &m_Matrix);
   return true;
 }
 
 void CPDF_ScaledRenderBuffer::OutputToDevice() {
   if (m_pBitmapDevice) {
     m_pDevice->StretchDIBits(m_pBitmapDevice->GetBitmap(), m_Rect.left,
                              m_Rect.top, m_Rect.Width(), m_Rect.Height());
   }
 }