Update "Predict network actions" UI setting.

chrome/browser/ui/webui/options/browser_options_handler.cc

Index: chrome/browser/ui/webui/options/browser_options_handler.cc
diff --git a/chrome/browser/ui/webui/options/browser_options_handler.cc b/chrome/browser/ui/webui/options/browser_options_handler.cc
index 938a3c0a0cde824fbde968d884945a4334c9d4b5..6e9ff901de6516fef3ae13717bbc8b2a124e53fb 100644
--- a/chrome/browser/ui/webui/options/browser_options_handler.cc
+++ b/chrome/browser/ui/webui/options/browser_options_handler.cc
@@ -32,6 +32,7 @@
 #include "chrome/browser/download/download_prefs.h"
 #include "chrome/browser/gpu/gpu_mode_manager.h"
 #include "chrome/browser/lifetime/application_lifetime.h"
+#include "chrome/browser/net/prediction_options.h"
 #include "chrome/browser/prefs/session_startup_pref.h"
 #include "chrome/browser/printing/cloud_print/cloud_print_proxy_service.h"
 #include "chrome/browser/printing/cloud_print/cloud_print_proxy_service_factory.h"
@@ -840,6 +841,10 @@ void BrowserOptionsHandler::InitializeHandler() {
                  base::Unretained(this)));
   profile_pref_registrar_.Init(prefs);
   profile_pref_registrar_.Add(
+      prefs::kNetworkPredictionOptions,
+      base::Bind(&BrowserOptionsHandler::SetupNetworkPredictionControl,
+                 base::Unretained(this)));
+  profile_pref_registrar_.Add(
       prefs::kWebKitDefaultFontSize,
       base::Bind(&BrowserOptionsHandler::SetupFontSizeSelector,
                  base::Unretained(this)));
@@ -904,6 +909,7 @@ void BrowserOptionsHandler::InitializePage() {
   UpdateDefaultBrowserState();
 
   SetupMetricsReportingSettingVisibility();
+  SetupNetworkPredictionControl();
   SetupFontSizeSelector();
   SetupPageZoomSelector();
   SetupAutoOpenFileTypes();
@@ -1660,6 +1666,20 @@ void BrowserOptionsHandler::SetupMetricsReportingSettingVisibility() {
 #endif
 }
 
+void BrowserOptionsHandler::SetupNetworkPredictionControl() {
+  PrefService* pref_service = Profile::FromWebUI(web_ui())->GetPrefs();
+
+  base::DictionaryValue dict;
+  dict.SetInteger("value",
+                  pref_service->GetInteger(prefs::kNetworkPredictionOptions));
+  dict.SetBoolean("disabled",
+                  !pref_service->IsUserModifiablePreference(
+                      prefs::kNetworkPredictionOptions));
+
+  web_ui()->CallJavascriptFunction("BrowserOptions.setNetworkPredictionValue",
+                                   dict);
+}
+
 void BrowserOptionsHandler::SetupFontSizeSelector() {
   PrefService* pref_service = Profile::FromWebUI(web_ui())->GetPrefs();
   const PrefService::Preference* default_font_size =