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

core/fpdfapi/parser/cpdf_document_unittest.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.
 
 #include "core/fpdfapi/parser/cpdf_document.h"
 
 #include <memory>
 #include <utility>
 
 #include "core/fpdfapi/cpdf_modulemgr.h"
@@ skipping 90 matching lines @@
     // Set up test
     auto allPages = pdfium::MakeUnique<CPDF_Array>();
     allPages->AddNew<CPDF_Reference>(
         this, AddIndirectObject(CreateNumberedPage(0))->GetObjNum());
     allPages->AddNew<CPDF_Reference>(
         this, AddIndirectObject(CreateNumberedPage(1))->GetObjNum());
     // Page without pageNum.
     allPages->Add(CreateNumberedPage(2));
     CPDF_Dictionary* pagesDict =
         CreatePageTreeNode(std::move(allPages), this, 3);
-    m_pOwnedRootDict.reset(new CPDF_Dictionary());
+    m_pOwnedRootDict = pdfium::MakeUnique<CPDF_Dictionary>();
     m_pOwnedRootDict->SetNewFor<CPDF_Reference>("Pages", this,
                                                 pagesDict->GetObjNum());
     m_pRootDict = m_pOwnedRootDict.get();
     m_PageList.SetSize(3);
   }
 
  private:
   std::unique_ptr<CPDF_Dictionary> m_pOwnedRootDict;
 };
 
@@ skipping 90 matching lines @@
   const uint32_t obj_num = page_stub->GetObjNum();
   const int test_page_num = 33;
 
   EXPECT_FALSE(document.IsPageLoaded(test_page_num));
   EXPECT_EQ(nullptr, document.GetPage(test_page_num));
 
   document.SetPageObjNum(test_page_num, obj_num);
   EXPECT_TRUE(document.IsPageLoaded(test_page_num));
   EXPECT_EQ(page_stub, document.GetPage(test_page_num));
 }