DevTools: make disable javascript setting temporary

third_party/WebKit/Source/devtools/front_end/main/Main.js

Index: third_party/WebKit/Source/devtools/front_end/main/Main.js
diff --git a/third_party/WebKit/Source/devtools/front_end/main/Main.js b/third_party/WebKit/Source/devtools/front_end/main/Main.js
index d4d3ecb9cea3855113fa2080d3e92c86a59e6494..291595b61545e23ae7efa3eb035e100c657ae67b 100644
--- a/third_party/WebKit/Source/devtools/front_end/main/Main.js
+++ b/third_party/WebKit/Source/devtools/front_end/main/Main.js
@@ -83,7 +83,8 @@ Main.Main = class {
     var globalStorage = new Common.SettingsStorage(
         prefs, InspectorFrontendHost.setPreference, InspectorFrontendHost.removePreference,
         InspectorFrontendHost.clearPreferences, storagePrefix);
-    Common.settings = new Common.Settings(globalStorage, localStorage);
+    var sessionStorage = new Common.SettingsStorage({}, undefined, undefined, undefined, storagePrefix);
+    Common.settings = new Common.Settings(globalStorage, localStorage, sessionStorage);
     if (!Host.isUnderTest(prefs))
       new Common.VersionController().updateVersion();
   }