WebUI: Move test_browser_proxy.js one level up.

chrome/test/data/webui/settings/fake_language_settings_private.js

Index: chrome/test/data/webui/settings/fake_language_settings_private.js
diff --git a/chrome/test/data/webui/settings/fake_language_settings_private.js b/chrome/test/data/webui/settings/fake_language_settings_private.js
index 9bd3bfdc72374000cd1f03d5a4b0f3f5c85ec749..f95ded0bc3308dab284d5d0a4e0dfff243832857 100644
--- a/chrome/test/data/webui/settings/fake_language_settings_private.js
+++ b/chrome/test/data/webui/settings/fake_language_settings_private.js
@@ -32,7 +32,7 @@ cr.define('settings', function() {
     this.onInputMethodRemoved = new FakeChromeEvent();
 
     // List of method names expected to be tested with whenCalled()
-    settings.TestBrowserProxy.call(this, [
+    TestBrowserProxy.call(this, [
       'getSpellcheckWords',
     ]);
 
@@ -110,7 +110,7 @@ cr.define('settings', function() {
   }
 
   FakeLanguageSettingsPrivate.prototype = {
-    __proto__: settings.TestBrowserProxy.prototype,
+    __proto__: TestBrowserProxy.prototype,
     // Methods for use in testing.
 
     /** @param {SettingsPrefsElement} */