Convert more c-style pointers to CFX_UnownedPtr

Change-Id: I551b4210c95db0b916e9fe6cddf11e6c3d015c50
Reviewed-on: https://pdfium-review.googlesource.com/5790
Reviewed-by: Lei Zhang <thestig@chromium.org>
Commit-Queue: Tom Sepez <tsepez@chromium.org>
diff --git a/fpdfsdk/fpdfeditpage.cpp b/fpdfsdk/fpdfeditpage.cpp
index 431adca..95ae666 100644
--- a/fpdfsdk/fpdfeditpage.cpp
+++ b/fpdfsdk/fpdfeditpage.cpp
@@ -300,7 +300,6 @@
   if (!IsPageObject(pPage))
     return;
 
-  CPDF_Dictionary* pDict = pPage->m_pFormDict;
   rotate %= 4;
-  pDict->SetNewFor<CPDF_Number>("Rotate", rotate * 90);
+  pPage->m_pFormDict->SetNewFor<CPDF_Number>("Rotate", rotate * 90);
 }