Harmony - convert hung renderer dialog.

chrome/browser/ui/views/hung_renderer_view_browsertest.cc

+// Copyright 2017 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 <string>
+
+#include "base/command_line.h"
+#include "chrome/browser/platform_util.h"
+#include "chrome/browser/ui/browser.cc"
+#include "chrome/browser/ui/tab_dialogs.h"
+#include "chrome/browser/ui/tabs/tab_strip_model.h"
+#include "chrome/browser/ui/test/test_browser_dialog.h"
+#include "chrome/browser/ui/views/hung_renderer_view.h"
+#include "content/public/browser/web_contents_unresponsive_state.h"
+#include "ui/base/ui_base_switches.h"
+
+class HungRendererDialogViewBrowserTest : public DialogBrowserTest {
+ public:
+  HungRendererDialogViewBrowserTest() {}
+
+  // DialogBrowserTest:
+  void ShowDialog(const std::string& name) override {
+    content::WebContents* web_contents =
+        browser()->tab_strip_model()->GetActiveWebContents();

[Peter Kasting, 2017/02/06 21:44:51]

Nit: Can fit on one line (and be just as clear) with auto:
    auto* web_contents = browser()->tab_strip_model()->GetActiveWebContents();

[Bret, 2017/02/09 00:49:49]

Done.

+    TabDialogs::FromWebContents(web_contents)
+        ->ShowHungRendererDialog(content::WebContentsUnresponsiveState());
+  }
+
+  // content::BrowserTestBase:
+  void SetUpCommandLine(base::CommandLine* command_line) override {
+    command_line->AppendSwitch(switches::kExtendMdToSecondaryUi);

[Peter Kasting, 2017/02/06 21:44:51]

Do we need/want to force this here?  Seems OK to just have the user pass this if
they want?

[Bret, 2017/02/09 00:49:49]

I felt like people who are using this suite don't care about the old version.
But I guess it's better to just let the user decide with their switches, so this
is removed.

+  }
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(HungRendererDialogViewBrowserTest);
+};
+
+// Invokes the hung renderer (aka page unresponsive) dialog. See
+// test_browser_dialog.h.
+IN_PROC_BROWSER_TEST_F(HungRendererDialogViewBrowserTest,
+                       InvokeDialog_default) {
+  RunDialog();
+}