Revert "Remove WebView DRP Setting from Developer Settings"

This reverts commit eb487c63017ae5cb0f3f35bf8b17c5f3bbb0f456.

Change-Id: Ie38a24efe2ea015b971cb0a05eca321299898538
diff --git a/core/java/android/provider/Settings.java b/core/java/android/provider/Settings.java
index 18e6bf3..ec4a53e 100644
--- a/core/java/android/provider/Settings.java
+++ b/core/java/android/provider/Settings.java
@@ -3102,6 +3102,7 @@
             MOVED_TO_GLOBAL.add(Settings.Global.SET_GLOBAL_HTTP_PROXY);
             MOVED_TO_GLOBAL.add(Settings.Global.DEFAULT_DNS_SERVER);
             MOVED_TO_GLOBAL.add(Settings.Global.PREFERRED_NETWORK_MODE);
+            MOVED_TO_GLOBAL.add(Settings.Global.WEBVIEW_DATA_REDUCTION_PROXY_KEY);
         }
 
         /** @hide */
@@ -4584,6 +4585,13 @@
         public static final String ANR_SHOW_BACKGROUND = "anr_show_background";
 
         /**
+         * (Experimental). If nonzero, WebView uses data reduction proxy to save network
+         * bandwidth. Otherwise, WebView does not use data reduction proxy.
+         * @hide
+         */
+        public static final String WEBVIEW_DATA_REDUCTION_PROXY = "webview_data_reduction_proxy";
+
+        /**
          * The {@link ComponentName} string of the service to be used as the voice recognition
          * service.
          *
@@ -5678,6 +5686,13 @@
         */
        public static final String USE_GOOGLE_MAIL = "use_google_mail";
 
+        /**
+         * Webview Data reduction proxy key.
+         * @hide
+         */
+        public static final String WEBVIEW_DATA_REDUCTION_PROXY_KEY =
+                "webview_data_reduction_proxy_key";
+
        /**
         * Whether Wifi display is enabled/disabled
         * 0=disabled. 1=enabled.