MD Settings: Hook up system_page to new LifetimeBrowserProxy.

chrome/browser/resources/settings/system_page/system_page_browser_proxy.js

Index: chrome/browser/resources/settings/system_page/system_page_browser_proxy.js
diff --git a/chrome/browser/resources/settings/system_page/system_page_browser_proxy.js b/chrome/browser/resources/settings/system_page/system_page_browser_proxy.js
index 654e6afc93ed09473b742c02e3bc4d30a151937a..e3c782365171bc7be3625992d40540e872e79e10 100644
--- a/chrome/browser/resources/settings/system_page/system_page_browser_proxy.js
+++ b/chrome/browser/resources/settings/system_page/system_page_browser_proxy.js
@@ -12,9 +12,6 @@ cr.define('settings', function() {
     /** Allows the user to change native system proxy settings. */
     changeProxySettings: function() {},
 
-    /** Restarts Chrome so "Use hardware acceleration" can take effect. */
-    restartBrowser: function() {},
-
     /**
      * @return {boolean} Whether hardware acceleration was enabled when the user
      *     started Chrome.
@@ -37,11 +34,6 @@ cr.define('settings', function() {
     },
 
     /** @override */
-    restartBrowser: function() {
-      chrome.send('restartBrowser');
-    },
-
-    /** @override */
     wasHardwareAccelerationEnabledAtStartup: function() {
       return loadTimeData.getBoolean('hardwareAccelerationEnabledAtStartup');
     },