Revert of mandoline: Add back/forward support and UI.

components/web_view/test_runner/test_runner_application_delegate.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 "components/web_view/test_runner/test_runner_application_delegate.h"
 
 #include <iostream>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 105 matching lines @@
 ////////////////////////////////////////////////////////////////////////////////
 // mojom::WebViewClient implementation:
 
 void TestRunnerApplicationDelegate::TopLevelNavigate(
     mojo::URLRequestPtr request) {
   web_view_->web_view()->LoadRequest(request.Pass());
 }
 
 void TestRunnerApplicationDelegate::LoadingStateChanged(bool is_loading) {}
 void TestRunnerApplicationDelegate::ProgressChanged(double progress) {}
-void TestRunnerApplicationDelegate::BackForwardChanged(
-    mojom::ButtonState back_button,
-    mojom::ButtonState forward_button) {}
 void TestRunnerApplicationDelegate::TitleChanged(const mojo::String& title) {}
 
 ////////////////////////////////////////////////////////////////////////////////
 // LayoutTestRunner implementation:
 
 void TestRunnerApplicationDelegate::TestFinished() {
   std::cout << "#EOF\n";
   std::cout.flush();
 
   std::cerr << "#EOF\n";
   std::cerr.flush();
 
   scoped_ptr<test_runner::TestInfo> test_info = test_extractor_->GetNextTest();
   if (test_info)
     LaunchURL(test_info->url);
   else
     Terminate();
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // mojo::InterfaceFactory<LayoutTestRunner> implementation:
 
 void TestRunnerApplicationDelegate::Create(
     mojo::ApplicationConnection* connection,
     mojo::InterfaceRequest<web_view::LayoutTestRunner> request) {
   layout_test_runner_.AddBinding(this, request.Pass());
 }
 
 }  // namespace web_view