Make most PDFium code pass Clang plugin's auto raw check.

Change-Id: I9dc32342e24361389841ecba83081a97fc043377
Reviewed-on: https://pdfium-review.googlesource.com/2959
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
diff --git a/fpdfsdk/javascript/Field.cpp b/fpdfsdk/javascript/Field.cpp
index f37b3d4..61a2538 100644
--- a/fpdfsdk/javascript/Field.cpp
+++ b/fpdfsdk/javascript/Field.cpp
@@ -1816,7 +1816,7 @@
       return false;
     }
 
-    auto pWidget = static_cast<CPDFSDK_Widget*>(pObserved.Get());
+    auto* pWidget = static_cast<CPDFSDK_Widget*>(pObserved.Get());
     CPDFSDK_PageView* pPageView = pWidget->GetPageView();
     if (!pPageView)
       return false;