Revert of Add a scroll offset to PDF documents to account for the top material design toolbar.

pdf/out_of_process_instance.h

Index: pdf/out_of_process_instance.h
diff --git a/pdf/out_of_process_instance.h b/pdf/out_of_process_instance.h
index 1215f192bcf34c8c94220a8bcf9944676bcd8842..8a3de66e2e7ba476607dcea2ac0c613371e1811e 100644
--- a/pdf/out_of_process_instance.h
+++ b/pdf/out_of_process_instance.h
@@ -333,10 +333,6 @@
   // The background color of the PDF viewer.
   uint32 background_color_;
 
-  // The blank space above the first page of the document reserved for the
-  // toolbar.
-  int top_toolbar_height_;
-
   DISALLOW_COPY_AND_ASSIGN(OutOfProcessInstance);
 };