mandoline: Add back/forward support and UI.

components/web_view/test_runner/test_runner_application_delegate.h

 // 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.
 
 #ifndef COMPONENTS_WEB_VIEW__TEST_RUNNER_TEST_RUNNER_APPLICATION_DELEGATE_H_
 #define COMPONENTS_WEB_VIEW__TEST_RUNNER_TEST_RUNNER_APPLICATION_DELEGATE_H_
 
 #include "base/command_line.h"
 #include "base/memory/scoped_ptr.h"
 #include "components/test_runner/test_info_extractor.h"
@@ skipping 34 matching lines @@
       mojo::ApplicationConnection* connection) override;
 
   // mojo::ViewTreeDelegate:
   void OnEmbed(mojo::View* root) override;
   void OnConnectionLost(mojo::ViewTreeConnection* connection) override;
 
   // mojom::WebViewClient:
   void TopLevelNavigate(mojo::URLRequestPtr request) override;
   void LoadingStateChanged(bool is_loading) override;
   void ProgressChanged(double progress) override;
+  void BackForwardChanged(mojom::ButtonState back_button,
+                          mojom::ButtonState forward_button) override;
   void TitleChanged(const mojo::String& title) override;
 
   // LayoutTestRunner:
   void TestFinished() override;
 
   // mojo::InterfaceFactory<LayoutTestRunner>:
   void Create(mojo::ApplicationConnection* connection,
               mojo::InterfaceRequest<LayoutTestRunner> request) override;
 
   mojo::ApplicationImpl* app_;
   mojo::ViewTreeHostPtr host_;
 
   mojo::View* root_;
   mojo::View* content_;
   scoped_ptr<WebView> web_view_;
 
   scoped_ptr<test_runner::TestInfoExtractor> test_extractor_;
 
   mojo::WeakBindingSet<LayoutTestRunner> layout_test_runner_;
 
   DISALLOW_COPY_AND_ASSIGN(TestRunnerApplicationDelegate);
 };
 
 }  // namespace web_view
 
 #endif  // COMPONENTS_WEB_VIEW__TEST_RUNNER_TEST_RUNNER_APPLICATION_DELEGATE_H_