Implement remaining chrome.searchEnginesPrivate methods.

chrome/browser/extensions/api/search_engines_private/search_engines_private_apitest.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/command_line.h"
 #include "base/values.h"
 #include "chrome/browser/extensions/extension_apitest.h"
 #include "chrome/common/extensions/api/search_engines_private.h"
 #include "components/keyed_service/core/keyed_service.h"
 #include "content/public/test/test_utils.h"
@@ skipping 33 matching lines @@
 IN_PROC_BROWSER_TEST_F(SearchEnginesPrivateApiTest, SetSelectedSearchEngine) {
   EXPECT_TRUE(RunSearchEnginesSubtest("setSelectedSearchEngine")) << message_;
 }
 
 IN_PROC_BROWSER_TEST_F(SearchEnginesPrivateApiTest,
                        OnDefaultSearchEnginesChanged) {
   EXPECT_TRUE(RunSearchEnginesSubtest("onDefaultSearchEnginesChanged"))
       << message_;
 }
 
+IN_PROC_BROWSER_TEST_F(SearchEnginesPrivateApiTest, AddNewSearchEngine) {
+  EXPECT_TRUE(RunSearchEnginesSubtest("addNewSearchEngine")) << message_;
+}
+
+IN_PROC_BROWSER_TEST_F(SearchEnginesPrivateApiTest, UpdateSearchEngine) {
+  EXPECT_TRUE(RunSearchEnginesSubtest("updateSearchEngine")) << message_;
+}
+
+IN_PROC_BROWSER_TEST_F(SearchEnginesPrivateApiTest, RemoveSearchEngine) {
+  EXPECT_TRUE(RunSearchEnginesSubtest("removeSearchEngine")) << message_;
+}
+
+IN_PROC_BROWSER_TEST_F(SearchEnginesPrivateApiTest,
+                       OnOtherSearchEnginesChanged) {
+  EXPECT_TRUE(RunSearchEnginesSubtest("onOtherSearchEnginesChanged"))
+      << message_;
+}
+
 }  // namespace extensions