Add a browser-test for the keyboard widget.

chrome/browser/ui/touch/keyboard/keyboard_manager_browsertest.cc

+// Copyright (c) 2011 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 "chrome/browser/ui/browser.h"
+#include "chrome/browser/ui/touch/keyboard/keyboard_manager.h"
+#include "chrome/test/in_process_browser_test.h"
+#include "chrome/test/ui_test_utils.h"
+#include "net/base/mock_host_resolver.h"
+#include "views/widget/widget.h"
+
+class KeyboardManagerTest : public InProcessBrowserTest,
+                            public NotificationObserver {
+ public:
+  KeyboardManagerTest() : InProcessBrowserTest(),

[sky, 2011/07/06 14:38:31]

put the member initialize list on the next line and indent 4.

[sadrul, 2011/07/06 16:18:19]

Done.

+                          keyboard_visible_(false) {
+  }
+
+  bool keyboard_visible() { return keyboard_visible_; }

[sky, 2011/07/06 14:38:31]

const

[sadrul, 2011/07/06 16:18:19]

Done.

+
+  void SetupNotificationListener() {
+    registrar_.Add(this,
+                   NotificationType::KEYBOARD_VISIBILITY_CHANGED,
+                   NotificationService::AllSources());
+  }
+
+ private:
+  virtual void TearDown() {
+    registrar_.RemoveAll();

[sky, 2011/07/06 14:38:31]

This will automatically happen in the destructor. Is there really a reason you
need it here?

[sadrul, 2011/07/06 16:18:19]

By the time this happens in the destructor, the NotificationService has already
been destroyed, and this ends up causing a crash:

FATAL:notification_service.cc(71)] Check failed: HasKey(observers_[type.value],
source).
Backtrace:
        base::debug::StackTrace::StackTrace() [0x7fa0e5c2755e]
        logging::LogMessage::~LogMessage() [0x7fa0e5c4b762]
        NotificationService::RemoveObserver() [0x1d9e6d5]
        NotificationRegistrar::RemoveAll() [0x1d9cd95]
        NotificationRegistrar::~NotificationRegistrar() [0x1d9c950]
        KeyboardManagerTest::~KeyboardManagerTest() [0x94754d]

+    InProcessBrowserTest::TearDown();
+  }
+
+  virtual void Observe(NotificationType type,
+                       const NotificationSource& source,
+                       const NotificationDetails& details) OVERRIDE {
+    DCHECK_EQ(NotificationType::KEYBOARD_VISIBILITY_CHANGED, type.value);
+    keyboard_visible_ = *Details<bool>(details).ptr();
+  }
+
+  bool keyboard_visible_;
+  NotificationRegistrar registrar_;
+};
+
+IN_PROC_BROWSER_TEST_F(KeyboardManagerTest, TestVisibility) {
+  SetupNotificationListener();
+
+  // Move focus between the omnibox and the wrench menu a few times. Note that
+  // it is necessary to to RunAllPendingInMessageLoop each time after moving

[sky, 2011/07/06 14:38:31]

'to to' -> 'to'

[sadrul, 2011/07/06 16:18:19]

Done.

+  // focus between the omnibox and the wrench menu because of the task posted in
+  // AccessiblePaneView::FocusWillChange
+
+  browser()->FocusAppMenu();
+  EXPECT_FALSE(keyboard_visible());
+  ui_test_utils::RunAllPendingInMessageLoop();
+
+  browser()->FocusLocationBar();
+  EXPECT_TRUE(keyboard_visible());
+  ui_test_utils::RunAllPendingInMessageLoop();
+
+  browser()->FocusAppMenu();
+  EXPECT_FALSE(keyboard_visible());
+  ui_test_utils::RunAllPendingInMessageLoop();
+
+  browser()->FocusLocationBar();
+  EXPECT_TRUE(keyboard_visible());
+  ui_test_utils::RunAllPendingInMessageLoop();
+
+  browser()->FocusNextPane();
+  EXPECT_FALSE(keyboard_visible());
+  ui_test_utils::RunAllPendingInMessageLoop();
+
+  // Test with some tabs now
+  host_resolver()->AddRule("*", "127.0.0.1");
+  ASSERT_TRUE(test_server()->Start());
+  GURL base_url = test_server()->GetURL("files/keyboard/");
+
+  // Go to a page that gives focus to a textfield onload.
+  ui_test_utils::NavigateToURL(browser(), base_url.Resolve("focus.html"));
+  EXPECT_TRUE(keyboard_visible());
+
+  // Open a new tab that does not give focus to a textfield onload.
+  browser()->AddSelectedTabWithURL(base_url.Resolve("blank.html"),
+                                   PageTransition::LINK);
+  ui_test_utils::WaitForNotification(NotificationType::LOAD_STOP);
+
+  // Focus the first tab where the textfield has the focus.
+  browser()->SelectNextTab();
+  EXPECT_TRUE(keyboard_visible());
+
+  // Focus the next tab again.
+  browser()->SelectNextTab();
+  EXPECT_FALSE(keyboard_visible());
+}