Added the chrome://safe-browsing/ page as part of the chrome://about

Created the chrome://safe-browsing/ WebUI interface, and added it as
part of the list, in the chrome://about page.

Reference: I followed the steps in
https://www.chromium.org/developers/webui to create the interface.

CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:closure_compilation

Review-Url: https://codereview.chromium.org/2940963002
Cr-Commit-Position: refs/heads/master@{#483104}
diff --git a/components/components_strings.grd b/components/components_strings.grd
index 9b42f89..d29cca9 100644
--- a/components/components_strings.grd
+++ b/components/components_strings.grd
@@ -206,6 +206,7 @@
       <part file="pdf_strings.grdp" />
       <part file="physical_web_ui_strings.grdp" />
       <part file="policy_strings.grdp" />
+      <part file="safe_browsing_strings.grdp" />
       <part file="security_interstitials_strings.grdp" />
       <part file="security_state_strings.grdp" />
       <part file="ssl_errors_strings.grdp" />