Make CPDF_Stream() take unique_ptr's to its dictionary.

core/fxge/dib/fx_dib_engine_unittest.cpp

Index: core/fxge/dib/fx_dib_engine_unittest.cpp
diff --git a/core/fxge/dib/fx_dib_engine_unittest.cpp b/core/fxge/dib/fx_dib_engine_unittest.cpp
index faacebd5fc7546196960e74b91990dbbcb0e08ac..c890b2c0c0b3ed6a5fef0354559627ab4708dafb 100644
--- a/core/fxge/dib/fx_dib_engine_unittest.cpp
+++ b/core/fxge/dib/fx_dib_engine_unittest.cpp
@@ -21,7 +21,7 @@ TEST(CStretchEngine, OverflowInCtor) {
   dict_obj->SetNewFor<CPDF_Number>("Width", 71000);
   dict_obj->SetNewFor<CPDF_Number>("Height", 12500);
   std::unique_ptr<CPDF_Stream> stream =
-      pdfium::MakeUnique<CPDF_Stream>(nullptr, 0, dict_obj.release());
+      pdfium::MakeUnique<CPDF_Stream>(nullptr, 0, std::move(dict_obj));
   CPDF_DIBSource dib_source;
   dib_source.Load(nullptr, stream.get(), nullptr, nullptr, nullptr, nullptr,
                   false, 0, false);