Add ptr_util.h from base until std::make_unique<> available

core/fxge/apple/fx_quartz_device.cpp

 // Copyright 2014 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/fxcrt/fx_ext.h"
 
 #ifndef _SKIA_SUPPORT_
 #include "core/fxge/agg/fx_agg_driver.h"
 #endif
 
 #include "core/fxcrt/fx_memory.h"
 #include "core/fxge/cfx_gemodule.h"
 #include "core/fxge/cfx_graphstatedata.h"
 #include "core/fxge/cfx_pathdata.h"
 #include "core/fxge/cfx_renderdevice.h"
 #include "core/fxge/dib/dib_int.h"
 #include "core/fxge/fx_freetype.h"
 #include "core/fxge/ge/fx_text_int.h"
+#include "third_party/base/ptr_util.h"
 
 #if _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_
 #include "core/fxge/apple/apple_int.h"
 #include "core/fxge/apple/cfx_quartzdevice.h"
 #ifndef CGFLOAT_IS_DOUBLE
 #error Expected CGFLOAT_IS_DOUBLE to be defined by CoreGraphics headers
 #endif
 
 void* CQuartz2D::createGraphics(CFX_DIBitmap* pBitmap) {
   if (!pBitmap) {
@@ skipping 983 matching lines @@
 CGContextRef CFX_QuartzDevice::GetContext() {
   return m_pContext;
 }
 FX_BOOL CFX_QuartzDevice::Attach(CGContextRef context, int32_t nDeviceClass) {
   if (m_pContext) {
     CGContextRelease(m_pContext);
   }
   m_pContext = context;
   CGContextRetain(m_pContext);
   SetDeviceDriver(
-      WrapUnique(new CFX_QuartzDeviceDriver(m_pContext, nDeviceClass)));
+      pdfium::MakeUnique<CFX_QuartzDeviceDriver>(m_pContext, nDeviceClass));
   return TRUE;
 }
 
 FX_BOOL CFX_QuartzDevice::Attach(CFX_DIBitmap* pBitmap) {
   SetBitmap(pBitmap);
   m_pContext = createContextWithBitmap(pBitmap);
   if (!m_pContext)
     return FALSE;
 
   SetDeviceDriver(
-      WrapUnique(new CFX_QuartzDeviceDriver(m_pContext, FXDC_DISPLAY)));
+      pdfium::MakeUnique<CFX_QuartzDeviceDriver>(m_pContext, FXDC_DISPLAY));
   return TRUE;
 }
 
 FX_BOOL CFX_QuartzDevice::Create(int32_t width,
                                  int32_t height,
                                  FXDIB_Format format) {
   if ((uint8_t)format < 32) {
     return FALSE;
   }
   std::unique_ptr<CFX_DIBitmap> pBitmap(new CFX_DIBitmap);
   if (!pBitmap->Create(width, height, format))
     return FALSE;
   m_bOwnedBitmap = TRUE;
   return Attach(pBitmap.release());
 }
 #endif  // _FXM_PLATFORM_  == _FXM_PLATFORM_APPLE_