Docs: Re-adding a top level security section, removed in merge.

Change-Id: Ib0d3d2c0a0bbe829dfb35610ee00db718c83ba77
diff --git a/src/com/google/doclava/DocFile.java b/src/com/google/doclava/DocFile.java
index 12cf4e6..1a6746f 100644
--- a/src/com/google/doclava/DocFile.java
+++ b/src/com/google/doclava/DocFile.java
@@ -299,8 +299,8 @@
           hdf.setValue("page.type", "devices");
         } else if (filename.indexOf("source") == 0) {
           hdf.setValue("source", "true");
-        } else if (filename.indexOf("accessories") == 0) {
-          hdf.setValue("accessories", "true");
+        } else if (filename.indexOf("security") == 0) {
+          hdf.setValue("security", "true");
         } else if (filename.indexOf("compatibility") == 0) {
           hdf.setValue("compatibility", "true");
         } else if (filename.indexOf("wear") == 0) {
@@ -408,8 +408,8 @@
           hdf.setValue("page.type", "devices");
         } else if (filename.indexOf("source") == 0) {
           hdf.setValue("source", "true");
-        } else if (filename.indexOf("accessories") == 0) {
-          hdf.setValue("accessories", "true");
+        } else if (filename.indexOf("security") == 0) {
+          hdf.setValue("security", "true");
         } else if (filename.indexOf("compatibility") == 0) {
           hdf.setValue("compatibility", "true");
         } else if (filename.indexOf("topic/") == 0) {