revert 37335:

Add an accessibility API for events raised outside of the web content.

BUG=none
TEST=none

patch by Dominic Mazzoni <dmazzoni [at] google>
review url: http://codereview.chromium.org/402099/show


git-svn-id: svn://svn.chromium.org/chrome/trunk/src@37337 0039d316-1c4b-4281-b951-d872f2087c98

17 files changed, 5 insertions, 1011 deletions

diff --git a/chrome/browser/extensions/extension_accessibility_api.cc b/chrome/browser/extensions/extension_accessibility_api.cc
deleted file mode 100644
index 24428af..0000000
--- a/chrome/browser/extensions/extension_accessibility_api.cc
+++ /dev/null
@@ -1,181 +0,0 @@
-// Copyright (c) 2010 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/extensions/extension_tabs_module.h"
-
-#include "base/json/json_writer.h"
-#include "base/string_util.h"
-#include "base/values.h"
-#include "chrome/browser/browser.h"
-#include "chrome/browser/browser_list.h"
-#include "chrome/browser/browser_window.h"
-#include "chrome/browser/extensions/extension_accessibility_api.h"
-#include "chrome/browser/extensions/extension_accessibility_api_constants.h"
-#include "chrome/browser/extensions/extension_function_dispatcher.h"
-#include "chrome/browser/extensions/extension_message_service.h"
-#include "chrome/browser/extensions/extensions_service.h"
-#include "chrome/browser/profile.h"
-#include "chrome/common/extensions/extension.h"
-
-namespace keys = extension_accessibility_api_constants;
-
-// Returns the AccessibilityControlInfo serialized into a JSON string,
-// consisting of an array of a single object of type AccessibilityObject,
-// as defined in the accessibility extension api's json schema.
-std::string ControlInfoToJsonString(const AccessibilityControlInfo* info) {
-  ListValue args;
-  DictionaryValue* dict = new DictionaryValue();
-  info->SerializeToDict(dict);
-  args.Append(dict);
-  std::string json_args;
-  base::JSONWriter::Write(&args, false, &json_args);
-  return json_args;
-}
-
-ExtensionAccessibilityEventRouter*
-    ExtensionAccessibilityEventRouter::GetInstance() {
-  return Singleton<ExtensionAccessibilityEventRouter>::get();
-}
-
-void ExtensionAccessibilityEventRouter::ObserveProfile(Profile* profile) {
-  last_focused_control_dict_.Clear();
-
-  if (registrar_.IsEmpty()) {
-    registrar_.Add(this,
-                   NotificationType::ACCESSIBILITY_WINDOW_OPENED,
-                   NotificationService::AllSources());
-    registrar_.Add(this,
-                   NotificationType::ACCESSIBILITY_WINDOW_CLOSED,
-                   NotificationService::AllSources());
-    registrar_.Add(this,
-                   NotificationType::ACCESSIBILITY_CONTROL_FOCUSED,
-                   NotificationService::AllSources());
-    registrar_.Add(this,
-                   NotificationType::ACCESSIBILITY_CONTROL_ACTION,
-                   NotificationService::AllSources());
-    registrar_.Add(this,
-                   NotificationType::ACCESSIBILITY_TEXT_CHANGED,
-                   NotificationService::AllSources());
-  }
-}
-
-void ExtensionAccessibilityEventRouter::Observe(
-    NotificationType type,
-    const NotificationSource& source,
-    const NotificationDetails& details) {
-  switch (type.value) {
-    case NotificationType::ACCESSIBILITY_WINDOW_OPENED:
-      OnWindowOpened(Details<const AccessibilityWindowInfo>(details).ptr());
-      break;
-    case NotificationType::ACCESSIBILITY_WINDOW_CLOSED:
-      OnWindowClosed(Details<const AccessibilityWindowInfo>(details).ptr());
-      break;
-    case NotificationType::ACCESSIBILITY_CONTROL_FOCUSED:
-      OnControlFocused(Details<const AccessibilityControlInfo>(details).ptr());
-      break;
-    case NotificationType::ACCESSIBILITY_CONTROL_ACTION:
-      OnControlAction(Details<const AccessibilityControlInfo>(details).ptr());
-      break;
-    case NotificationType::ACCESSIBILITY_TEXT_CHANGED:
-      OnTextChanged(Details<const AccessibilityControlInfo>(details).ptr());
-      break;
-    default:
-      NOTREACHED();
-  }
-}
-
-void ExtensionAccessibilityEventRouter::SetAccessibilityEnabled(bool enabled) {
-  if (enabled_ != enabled) {
-    enabled_ = enabled;
-    if (enabled_) {
-      for (unsigned int i = 0; i < on_enabled_listeners_.size(); i++) {
-        on_enabled_listeners_[i]->Run();
-      }
-    } else {
-      for (unsigned int i = 0; i < on_disabled_listeners_.size(); i++) {
-        on_disabled_listeners_[i]->Run();
-      }
-    }
-  }
-}
-
-bool ExtensionAccessibilityEventRouter::IsAccessibilityEnabled() const {
-  return enabled_;
-}
-
-void ExtensionAccessibilityEventRouter::AddOnEnabledListener(
-    Callback* callback) {
-  on_enabled_listeners_.push_back(callback);
-}
-
-void ExtensionAccessibilityEventRouter::AddOnDisabledListener(
-    Callback* callback) {
-  on_disabled_listeners_.push_back(callback);
-}
-
-void ExtensionAccessibilityEventRouter::OnWindowOpened(
-    const AccessibilityWindowInfo* info) {
-  std::string json_args = ControlInfoToJsonString(info);
-  DispatchEvent(info->profile(), keys::kOnWindowOpened, json_args);
-}
-
-void ExtensionAccessibilityEventRouter::OnWindowClosed(
-    const AccessibilityWindowInfo* info) {
-  std::string json_args = ControlInfoToJsonString(info);
-  DispatchEvent(info->profile(), keys::kOnWindowClosed, json_args);
-}
-
-void ExtensionAccessibilityEventRouter::OnControlFocused(
-    const AccessibilityControlInfo* info) {
-  last_focused_control_dict_.Clear();
-  info->SerializeToDict(&last_focused_control_dict_);
-  std::string json_args = ControlInfoToJsonString(info);
-  DispatchEvent(info->profile(), keys::kOnControlFocused, json_args);
-}
-
-void ExtensionAccessibilityEventRouter::OnControlAction(
-    const AccessibilityControlInfo* info) {
-  std::string json_args = ControlInfoToJsonString(info);
-  DispatchEvent(info->profile(), keys::kOnControlAction, json_args);
-}
-
-void ExtensionAccessibilityEventRouter::OnTextChanged(
-    const AccessibilityControlInfo* info) {
-  std::string json_args = ControlInfoToJsonString(info);
-  DispatchEvent(info->profile(), keys::kOnTextChanged, json_args);
-}
-
-void ExtensionAccessibilityEventRouter::DispatchEvent(
-    Profile* profile,
-    const char* event_name,
-    const std::string& json_args) {
-  if (enabled_ && profile && profile->GetExtensionMessageService()) {
-    profile->GetExtensionMessageService()->
-        DispatchEventToRenderers(event_name, json_args);
-  }
-}
-
-bool SetAccessibilityEnabledFunction::RunImpl() {
-  bool enabled;
-  EXTENSION_FUNCTION_VALIDATE(args_->GetAsBoolean(&enabled));
-  ExtensionAccessibilityEventRouter::GetInstance()
-      ->SetAccessibilityEnabled(enabled);
-  return true;
-}
-
-bool GetFocusedControlFunction::RunImpl() {
-  // Get the serialized dict from the last focused control and return it.
-  // However, if the dict is empty, that means we haven't seen any focus
-  // events yet, so return null instead.
-  ExtensionAccessibilityEventRouter *accessibility_event_router =
-      ExtensionAccessibilityEventRouter::GetInstance();
-  DictionaryValue *last_focused_control_dict =
-      accessibility_event_router->last_focused_control_dict();
-  if (last_focused_control_dict->size()) {
-    result_.reset(last_focused_control_dict->DeepCopyWithoutEmptyChildren());
-  } else {
-    result_.reset(Value::CreateNullValue());
-  }
-  return true;
-}
diff --git a/chrome/browser/extensions/extension_accessibility_api.h b/chrome/browser/extensions/extension_accessibility_api.h
deleted file mode 100644
index afae039..0000000
--- a/chrome/browser/extensions/extension_accessibility_api.h
+++ /dev/null
@@ -1,96 +0,0 @@
-// Copyright (c) 2010 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 CHROME_BROWSER_EXTENSIONS_EXTENSION_ACCESSIBILITY_API_H_
-#define CHROME_BROWSER_EXTENSIONS_EXTENSION_ACCESSIBILITY_API_H_
-
-#include <string>
-#include <vector>
-
-#include "base/singleton.h"
-#include "chrome/browser/extensions/extension_function.h"
-#include "chrome/common/accessibility_events.h"
-#include "chrome/common/notification_service.h"
-#include "chrome/common/notification_registrar.h"
-
-// Observes the profile and routes accessibility notifications as events
-// to the extension system.
-class ExtensionAccessibilityEventRouter : public NotificationObserver {
- public:
-  // Single instance of the event router.
-  static ExtensionAccessibilityEventRouter* GetInstance();
-
-  // Safe to call multiple times.
-  void ObserveProfile(Profile* profile);
-
-  // Get the dict representing the last control that received an
-  // OnControlFocus event.
-  DictionaryValue* last_focused_control_dict() {
-    return &last_focused_control_dict_;
-  }
-
-  // Accessibility support is disabled until an extension expicitly enables
-  // it, so that this extension api has no impact on Chrome's performance
-  // otherwise.  These methods handle enabling, disabling, querying the
-  // status, and installing callbacks to execute when accessibility support
-  // is enabled or disabled.
-  void SetAccessibilityEnabled(bool enabled);
-  bool IsAccessibilityEnabled() const;
-  typedef Callback0::Type Callback;
-  void AddOnEnabledListener(Callback* callback);
-  void AddOnDisabledListener(Callback* callback);
-
- private:
-  friend struct DefaultSingletonTraits<ExtensionAccessibilityEventRouter>;
-
-  ExtensionAccessibilityEventRouter()
-      : enabled_(false) {}
-  virtual ~ExtensionAccessibilityEventRouter() {}
-
-  // NotificationObserver::Observe.
-  virtual void Observe(NotificationType type,
-                       const NotificationSource& source,
-                       const NotificationDetails& details);
-
-  void OnWindowOpened(const AccessibilityWindowInfo* details);
-  void OnWindowClosed(const AccessibilityWindowInfo* details);
-  void OnControlFocused(const AccessibilityControlInfo* details);
-  void OnControlAction(const AccessibilityControlInfo* details);
-  void OnTextChanged(const AccessibilityControlInfo* details);
-
-  void DispatchEvent(Profile* profile,
-                     const char* event_name,
-                     const std::string& json_args);
-
-  // Used for tracking registrations to history service notifications.
-  NotificationRegistrar registrar_;
-
-  DictionaryValue last_focused_control_dict_;
-
-  bool enabled_;
-  std::vector<Callback*> on_enabled_listeners_;
-  std::vector<Callback*> on_disabled_listeners_;
-
-  DISALLOW_COPY_AND_ASSIGN(ExtensionAccessibilityEventRouter);
-};
-
-// API function that enables or disables accessibility support.  Event
-// listeners are only installed when accessibility support is enabled, to
-// minimize the impact.
-class SetAccessibilityEnabledFunction : public SyncExtensionFunction {
-  virtual ~SetAccessibilityEnabledFunction() {}
-  virtual bool RunImpl();
-  DECLARE_EXTENSION_FUNCTION_NAME(
-      "experimental.accessibility.setAccessibilityEnabled")
-};
-
-// API function that returns the most recent focused control.
-class GetFocusedControlFunction : public SyncExtensionFunction {
-  virtual ~GetFocusedControlFunction() {}
-  virtual bool RunImpl();
-  DECLARE_EXTENSION_FUNCTION_NAME(
-      "experimental.accessibility.getFocusedControl")
-};
-
-#endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_ACCESSIBILITY_API_H_
diff --git a/chrome/browser/extensions/extension_accessibility_api_constants.cc b/chrome/browser/extensions/extension_accessibility_api_constants.cc
deleted file mode 100644
index 72d6138..0000000
--- a/chrome/browser/extensions/extension_accessibility_api_constants.cc
+++ /dev/null
@@ -1,38 +0,0 @@
-// Copyright (c) 2010 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/extensions/extension_accessibility_api_constants.h"
-
-namespace extension_accessibility_api_constants {
-
-// String keys for AccessibilityObject properties.
-const wchar_t kTypeKey[] = L"type";
-const wchar_t kNameKey[] = L"name";
-const wchar_t kDetailsKey[] = L"details";
-const wchar_t kValueKey[] = L"details.value";
-const wchar_t kPasswordKey[] = L"details.isPassword";
-const wchar_t kItemCountKey[] = L"details.itemCount";
-const wchar_t kItemIndexKey[] = L"details.itemIndex";
-const wchar_t kSelectionStartKey[] = L"details.selectionStart";
-const wchar_t kSelectionEndKey[] = L"details.selectionEnd";
-const wchar_t kCheckedKey[] = L"details.isChecked";
-
-// Events.
-const char kOnWindowOpened[] = "experimental.accessibility.onWindowOpened";
-const char kOnWindowClosed[] = "experimental.accessibility.onWindowClosed";
-const char kOnControlFocused[] = "experimental.accessibility.onControlFocused";
-const char kOnControlAction[] = "experimental.accessibility.onControlAction";
-const char kOnTextChanged[] = "experimental.accessibility.onTextChanged";
-
-// Types of controls that can receive accessibility events.
-extern const char kTypeButton[] = "button";
-extern const char kTypeCheckbox[] = "checkbox";
-extern const char kTypeComboBox[] = "combobox";
-extern const char kTypeLink[] = "link";
-extern const char kTypeRadioButton[] = "radiobutton";
-extern const char kTypeTab[] = "tab";
-extern const char kTypeTextBox[] = "textbox";
-extern const char kTypeWindow[] = "window";
-
-}  // namespace extension_accessibility_api_constants
diff --git a/chrome/browser/extensions/extension_accessibility_api_constants.h b/chrome/browser/extensions/extension_accessibility_api_constants.h
deleted file mode 100644
index 2020ec8..0000000
--- a/chrome/browser/extensions/extension_accessibility_api_constants.h
+++ /dev/null
@@ -1,43 +0,0 @@
-// Copyright (c) 2010 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.
-
-// Constants used to for the Accessibility API.
-
-#ifndef CHROME_BROWSER_EXTENSIONS_EXTENSION_ACCESSIBILITY_API_CONSTANTS_H_
-#define CHROME_BROWSER_EXTENSIONS_EXTENSION_ACCESSIBILITY_API_CONSTANTS_H_
-
-namespace extension_accessibility_api_constants {
-
-// Keys.
-extern const wchar_t kTypeKey[];
-extern const wchar_t kNameKey[];
-extern const wchar_t kDetailsKey[];
-extern const wchar_t kValueKey[];
-extern const wchar_t kPasswordKey[];
-extern const wchar_t kItemCountKey[];
-extern const wchar_t kItemIndexKey[];
-extern const wchar_t kSelectionStartKey[];
-extern const wchar_t kSelectionEndKey[];
-extern const wchar_t kCheckedKey[];
-
-// Events.
-extern const char kOnWindowOpened[];
-extern const char kOnWindowClosed[];
-extern const char kOnControlFocused[];
-extern const char kOnControlAction[];
-extern const char kOnTextChanged[];
-
-// Types of controls that can receive accessibility events
-extern const char kTypeButton[];
-extern const char kTypeCheckbox[];
-extern const char kTypeComboBox[];
-extern const char kTypeLink[];
-extern const char kTypeRadioButton[];
-extern const char kTypeTab[];
-extern const char kTypeTextBox[];
-extern const char kTypeWindow[];
-
-};  // namespace extension_accessibility_api_constants
-
-#endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_ACCESSIBILITY_API_CONSTANTS_H_
diff --git a/chrome/browser/extensions/extension_accessibility_apitest.cc b/chrome/browser/extensions/extension_accessibility_apitest.cc
deleted file mode 100644
index 692dc9c..0000000
--- a/chrome/browser/extensions/extension_accessibility_apitest.cc
+++ /dev/null
@@ -1,17 +0,0 @@
-// Copyright (c) 2009 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/extensions/extension_apitest.h"
-
-// This extension is currently only supported on Linux and Chrome OS.
-#if defined(OS_LINUX)
-#define MAYBE_Accessibility Accessibility
-#else
-#define MAYBE_Accessibility DISABLED_Accessibility
-#endif
-
-IN_PROC_BROWSER_TEST_F(ExtensionApiTest, MAYBE_Accessibility) {
-  StartHTTPServer();
-  ASSERT_TRUE(RunExtensionTest("accessibility")) << message_;
-}
diff --git a/chrome/browser/extensions/extension_function_dispatcher.cc b/chrome/browser/extensions/extension_function_dispatcher.cc
index 64d2f18..ba3e80e 100644
--- a/chrome/browser/extensions/extension_function_dispatcher.cc
+++ b/chrome/browser/extensions/extension_function_dispatcher.cc
@@ -10,7 +10,6 @@
 #include "chrome/browser/browser.h"
 #include "chrome/browser/browser_window.h"
 #include "chrome/browser/extensions/execute_code_in_tab_function.h"
-#include "chrome/browser/extensions/extension_accessibility_api.h"
 #include "chrome/browser/extensions/extension_bookmark_manager_api.h"
 #include "chrome/browser/extensions/extension_bookmarks_module.h"
 #include "chrome/browser/extensions/extension_bookmarks_module_constants.h"
@@ -162,10 +161,6 @@ void FactoryRegistry::ResetFunctions() {
   RegisterFunction<ExtensionTestFailFunction>();
   RegisterFunction<ExtensionTestLogFunction>();
   RegisterFunction<ExtensionTestQuotaResetFunction>();
-
-  // Accessibility.
-  RegisterFunction<GetFocusedControlFunction>();
-  RegisterFunction<SetAccessibilityEnabledFunction>();
 }
 
 void FactoryRegistry::GetAllNames(std::vector<std::string>* names) {
diff --git a/chrome/browser/extensions/extensions_service.cc b/chrome/browser/extensions/extensions_service.cc
index b79880c..de75aba 100644
--- a/chrome/browser/extensions/extensions_service.cc
+++ b/chrome/browser/extensions/extensions_service.cc
@@ -14,7 +14,6 @@
 #include "chrome/browser/chrome_thread.h"
 #include "chrome/browser/debugger/devtools_manager.h"
 #include "chrome/browser/extensions/crx_installer.h"
-#include "chrome/browser/extensions/extension_accessibility_api.h"
 #include "chrome/browser/extensions/extension_bookmarks_module.h"
 #include "chrome/browser/extensions/extension_browser_event_router.h"
 #include "chrome/browser/extensions/extension_dom_ui.h"
@@ -163,7 +162,6 @@ void ExtensionsService::Init() {
 
   // Start up the extension event routers.
   ExtensionHistoryEventRouter::GetInstance()->ObserveProfile(profile_);
-  ExtensionAccessibilityEventRouter::GetInstance()->ObserveProfile(profile_);
 
   LoadAllExtensions();
 
diff --git a/chrome/browser/gtk/accessibility_event_router_gtk.cc b/chrome/browser/gtk/accessibility_event_router_gtk.cc
deleted file mode 100644
index c020721..0000000
--- a/chrome/browser/gtk/accessibility_event_router_gtk.cc
+++ /dev/null
@@ -1,286 +0,0 @@
-// Copyright (c) 2010 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/gtk/accessibility_event_router_gtk.h"
-
-#include "base/basictypes.h"
-#include "base/stl_util-inl.h"
-#include "chrome/browser/extensions/extension_accessibility_api.h"
-#include "chrome/browser/gtk/gtk_chrome_link_button.h"
-#include "chrome/browser/profile.h"
-#include "chrome/common/notification_type.h"
-
-namespace {
-
-//
-// Callbacks triggered by signals on gtk widgets.
-//
-
-gboolean OnWidgetFocused(GSignalInvocationHint *ihint,
-                         guint n_param_values,
-                         const GValue* param_values,
-                         gpointer user_data) {
-  GtkWidget* widget = GTK_WIDGET(g_value_get_object(param_values));
-  reinterpret_cast<AccessibilityEventRouter *>(user_data)
-      ->DispatchAccessibilityNotification(
-          widget, NotificationType::ACCESSIBILITY_CONTROL_FOCUSED);
-  return true;
-}
-
-gboolean OnButtonClicked(GSignalInvocationHint *ihint,
-                         guint n_param_values,
-                         const GValue* param_values,
-                         gpointer user_data) {
-  GtkWidget* widget = GTK_WIDGET(g_value_get_object(param_values));
-  // Skip toggle buttons because we're also listening on "toggle" events.
-  if (GTK_IS_TOGGLE_BUTTON(widget))
-    return true;
-  reinterpret_cast<AccessibilityEventRouter *>(user_data)
-      ->DispatchAccessibilityNotification(
-          widget, NotificationType::ACCESSIBILITY_CONTROL_ACTION);
-  return true;
-}
-
-gboolean OnButtonToggled(GSignalInvocationHint *ihint,
-                         guint n_param_values,
-                         const GValue* param_values,
-                         gpointer user_data) {
-  GtkWidget* widget = GTK_WIDGET(g_value_get_object(param_values));
-  bool checked = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(widget));
-  // Skip propagating an "uncheck" event for a radio button because it's
-  // redundant; there will always be a corresponding "check" event for
-  // a different radio button the group.
-  if (GTK_IS_RADIO_BUTTON(widget) && !checked)
-    return true;
-  reinterpret_cast<AccessibilityEventRouter *>(user_data)
-      ->DispatchAccessibilityNotification(
-          widget, NotificationType::ACCESSIBILITY_CONTROL_ACTION);
-  return true;
-}
-
-gboolean OnSwitchPage(GSignalInvocationHint *ihint,
-                      guint n_param_values,
-                      const GValue* param_values,
-                      gpointer user_data) {
-  GtkWidget* widget = GTK_WIDGET(g_value_get_object(param_values));
-  reinterpret_cast<AccessibilityEventRouter *>(user_data)
-      ->DispatchAccessibilityNotification(
-          widget, NotificationType::ACCESSIBILITY_CONTROL_ACTION);
-  return true;
-}
-
-}  // anonymous namespace
-
-AccessibilityEventRouter::AccessibilityEventRouter() {
-  // We don't want our event listeners to be installed if accessibility is
-  // disabled. Install listeners so we can install and uninstall them as
-  // needed, then install them now if it's currently enabled.
-  ExtensionAccessibilityEventRouter *accessibility_event_router =
-      ExtensionAccessibilityEventRouter::GetInstance();
-  accessibility_event_router->AddOnEnabledListener(
-      NewCallback(this,
-                  &AccessibilityEventRouter::InstallEventListeners));
-  accessibility_event_router->AddOnDisabledListener(
-      NewCallback(this,
-                  &AccessibilityEventRouter::RemoveEventListeners));
-  if (accessibility_event_router->IsAccessibilityEnabled()) {
-    InstallEventListeners();
-  }
-}
-
-// static
-AccessibilityEventRouter* AccessibilityEventRouter::GetInstance() {
-  return Singleton<AccessibilityEventRouter>::get();
-}
-
-void AccessibilityEventRouter::InstallEventListeners() {
-  // Create and destroy a GtkNotebook to ensure this module is loaded,
-  // otherwise we can't lookup its signals.  All of the other modules we
-  // need will already be loaded by the time we get here.
-  g_object_unref(g_object_ref_sink(gtk_notebook_new()));
-
-  // Add signal emission hooks for the events we're interested in.
-  focus_hook_ = g_signal_add_emission_hook(
-      g_signal_lookup("focus-in-event", GTK_TYPE_WIDGET),
-      0, OnWidgetFocused, (gpointer)this, NULL);
-  click_hook_ = g_signal_add_emission_hook(
-      g_signal_lookup("clicked", GTK_TYPE_BUTTON),
-      0, OnButtonClicked, (gpointer)this, NULL);
-  toggle_hook_ = g_signal_add_emission_hook(
-      g_signal_lookup("toggled", GTK_TYPE_TOGGLE_BUTTON),
-      0, OnButtonToggled, (gpointer)this, NULL);
-  switch_page_hook_ = g_signal_add_emission_hook(
-      g_signal_lookup("switch-page", GTK_TYPE_NOTEBOOK),
-      0, OnSwitchPage, (gpointer)this, NULL);
-}
-
-void AccessibilityEventRouter::RemoveEventListeners() {
-  g_signal_remove_emission_hook(
-      g_signal_lookup("focus-in-event", GTK_TYPE_WIDGET), focus_hook_);
-  g_signal_remove_emission_hook(
-      g_signal_lookup("clicked", GTK_TYPE_BUTTON), click_hook_);
-  g_signal_remove_emission_hook(
-      g_signal_lookup("toggled", GTK_TYPE_TOGGLE_BUTTON), toggle_hook_);
-  g_signal_remove_emission_hook(
-      g_signal_lookup("switch-page", GTK_TYPE_NOTEBOOK), switch_page_hook_);
-}
-
-void AccessibilityEventRouter::AddRootWidget(
-    GtkWidget* root_widget, Profile* profile) {
-  root_widget_profile_map_[root_widget] = profile;
-}
-
-void AccessibilityEventRouter::RemoveRootWidget(GtkWidget* root_widget) {
-  DCHECK(root_widget_profile_map_.find(root_widget) !=
-         root_widget_profile_map_.end());
-  root_widget_profile_map_.erase(root_widget);
-}
-
-void AccessibilityEventRouter::IgnoreWidget(GtkWidget* widget) {
-  widget_info_map_[widget].ignore = true;
-}
-
-void AccessibilityEventRouter::SetWidgetName(
-    GtkWidget* widget, std::string name) {
-  widget_info_map_[widget].name = name;
-}
-
-void AccessibilityEventRouter::RemoveWidget(GtkWidget* widget) {
-  DCHECK(widget_info_map_.find(widget) != widget_info_map_.end());
-  widget_info_map_.erase(widget);
-}
-
-bool AccessibilityEventRouter::IsWidgetAccessible(
-    GtkWidget* widget, Profile** profile) {
-  // First see if it's a descendant of a root widget.
-  bool is_accessible = false;
-  for (base::hash_map<GtkWidget*, Profile*>::const_iterator iter =
-           root_widget_profile_map_.begin();
-       iter != root_widget_profile_map_.end();
-       ++iter) {
-    if (gtk_widget_is_ancestor(widget, iter->first)) {
-      is_accessible = true;
-      if (profile)
-        *profile = iter->second;
-      break;
-    }
-  }
-  if (!is_accessible)
-    return false;
-
-  // Now make sure it's not marked as a widget to be ignored.
-  base::hash_map<GtkWidget*, WidgetInfo>::const_iterator iter =
-      widget_info_map_.find(widget);
-  if (iter != widget_info_map_.end() && iter->second.ignore) {
-    is_accessible = false;
-  }
-
-  return is_accessible;
-}
-
-std::string AccessibilityEventRouter::GetWidgetName(GtkWidget* widget) {
-  base::hash_map<GtkWidget*, WidgetInfo>::const_iterator iter =
-      widget_info_map_.find(widget);
-  if (iter != widget_info_map_.end()) {
-    return iter->second.name;
-  } else {
-    return "";
-  }
-}
-
-void AccessibilityEventRouter::DispatchAccessibilityNotification(
-    GtkWidget* widget, NotificationType type) {
-  Profile *profile;
-  if (!IsWidgetAccessible(widget, &profile))
-    return;
-
-  // The order of these checks matters, because, for example, a radio button
-  // is a subclass of button.  We need to catch the most specific type that
-  // we can handle for each object.
-  if (GTK_IS_RADIO_BUTTON(widget)) {
-    SendRadioButtonNotification(widget, type, profile);
-  } else if (GTK_IS_TOGGLE_BUTTON(widget)) {
-    SendCheckboxNotification(widget, type, profile);
-  } else if (GTK_IS_BUTTON(widget)) {
-    SendButtonNotification(widget, type, profile);
-  } else if (GTK_IS_ENTRY(widget)) {
-    SendTextBoxNotification(widget, type, profile);
-  } else if (GTK_IS_NOTEBOOK(widget)) {
-    SendTabNotification(widget, type, profile);
-  }
-}
-
-void AccessibilityEventRouter::SendRadioButtonNotification(
-    GtkWidget* widget, NotificationType type, Profile* profile) {
-  // Get the radio button name
-  std::string button_name = GetWidgetName(widget);
-  if (button_name.empty() && gtk_button_get_label(GTK_BUTTON(widget)))
-    button_name = gtk_button_get_label(GTK_BUTTON(widget));
-
-  // Get its state
-  bool checked = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(widget));
-
-  // Get the index of this radio button and the total number of
-  // radio buttons in the group.
-  int item_count = 0;
-  int item_index = -1;
-  for (GSList* group = gtk_radio_button_get_group(GTK_RADIO_BUTTON(widget));
-       group;
-       group = group->next) {
-    if (group->data == widget) {
-      item_index = item_count;
-    }
-    item_count++;
-  }
-  item_index = item_count - 1 - item_index;
-
-  AccessibilityRadioButtonInfo info(
-      profile, button_name, checked, item_index, item_count);
-  SendAccessibilityNotification(type, &info);
-}
-
-void AccessibilityEventRouter::SendCheckboxNotification(
-    GtkWidget* widget, NotificationType type, Profile* profile) {
-  std::string button_name = GetWidgetName(widget);
-  if (button_name.empty() && gtk_button_get_label(GTK_BUTTON(widget)))
-    button_name = gtk_button_get_label(GTK_BUTTON(widget));
-  bool checked = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(widget));
-  AccessibilityCheckboxInfo info(profile, button_name, checked);
-  SendAccessibilityNotification(type, &info);
-}
-
-void AccessibilityEventRouter::SendButtonNotification(
-    GtkWidget* widget, NotificationType type, Profile* profile) {
-  std::string button_name = GetWidgetName(widget);
-  if (button_name.empty() && gtk_button_get_label(GTK_BUTTON(widget)))
-    button_name = gtk_button_get_label(GTK_BUTTON(widget));
-  AccessibilityButtonInfo info(profile, button_name);
-  SendAccessibilityNotification(type, &info);
-}
-
-void AccessibilityEventRouter::SendTextBoxNotification(
-    GtkWidget* widget, NotificationType type, Profile* profile) {
-  std::string name = GetWidgetName(widget);
-  std::string value = gtk_entry_get_text(GTK_ENTRY(widget));
-  gint start_pos;
-  gint end_pos;
-  gtk_editable_get_selection_bounds(GTK_EDITABLE(widget), &start_pos, &end_pos);
-  AccessibilityTextBoxInfo info(profile, name, false);
-  info.SetValue(value, start_pos, end_pos);
-  SendAccessibilityNotification(type, &info);
-}
-
-void AccessibilityEventRouter::SendTabNotification(
-    GtkWidget* widget, NotificationType type, Profile* profile) {
-  int index = gtk_notebook_get_current_page(GTK_NOTEBOOK(widget));
-  int page_count = gtk_notebook_get_n_pages(GTK_NOTEBOOK(widget));
-  GtkWidget* page = gtk_notebook_get_nth_page(GTK_NOTEBOOK(widget), index);
-  GtkWidget* label = gtk_notebook_get_tab_label(GTK_NOTEBOOK(widget), page);
-  std::string name = GetWidgetName(widget);
-  if (name.empty() && gtk_label_get_text(GTK_LABEL(label))) {
-    name = gtk_label_get_text(GTK_LABEL(label));
-  }
-  AccessibilityTabInfo info(profile, name, index, page_count);
-  SendAccessibilityNotification(type, &info);
-}
diff --git a/chrome/browser/gtk/accessibility_event_router_gtk.h b/chrome/browser/gtk/accessibility_event_router_gtk.h
deleted file mode 100644
index d0fd99d..0000000
--- a/chrome/browser/gtk/accessibility_event_router_gtk.h
+++ /dev/null
@@ -1,130 +0,0 @@
-// Copyright (c) 2010 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 CHROME_BROWSER_GTK_ACCESSIBILITY_EVENT_ROUTER_GTK_H_
-#define CHROME_BROWSER_GTK_ACCESSIBILITY_EVENT_ROUTER_GTK_H_
-
-#include <gtk/gtk.h>
-
-#include <string>
-#include <vector>
-
-#include "base/basictypes.h"
-#include "base/hash_tables.h"
-#include "base/singleton.h"
-#include "chrome/common/accessibility_events.h"
-
-class Profile;
-
-// Allows us to use (GtkWidget*) in a hash_map with gcc.
-namespace __gnu_cxx {
-template<>
-struct hash<GtkWidget*> {
-  size_t operator()(GtkWidget* widget) const {
-    return reinterpret_cast<size_t>(widget);
-  }
-};
-}  // namespace __gnu_cxx
-
-// Singleton class that adds a signal emission hook to many gtk events, and
-// then sends an accessibility notification whenever a relevant event is
-// sent to an accessible control.
-//
-// Gtk widgets are not accessible by default. When you register a root widget,
-// that widget and all of its descendants will start sending accessibility
-// event notifications. You can then override the default behavior for
-// specific descendants using other methods.
-//
-// You can use Profile::PauseAccessibilityEvents to prevent a flurry
-// of accessibility events when a window is being created or initialized.
-class AccessibilityEventRouter {
- public:
-  // Internal information about a particular widget to override the
-  // information we get directly from gtk.
-  struct WidgetInfo {
-    // If nonempty, will use this name instead of the widget's label.
-    std::string name;
-
-    // If true, will ignore this widget and not send accessibility events.
-    bool ignore;
-  };
-
-  // Get the single instance of this class.
-  static AccessibilityEventRouter* GetInstance();
-
-  // Start sending accessibility events for this widget and all of its
-  // descendants.  Notifications will go to the specified profile.
-  void AddRootWidget(GtkWidget* root_widget, Profile* profile);
-
-  // Stop sending accessibility events for this widget and all of its
-  // descendants.
-  void RemoveRootWidget(GtkWidget* root_widget);
-
-  // Don't send any events for this widget.
-  void IgnoreWidget(GtkWidget* widget);
-
-  // Use the following string as the name of this widget, instead of the
-  // gtk label associated with the widget.
-  void SetWidgetName(GtkWidget* widget, std::string name);
-
-  // Forget all information about this widget.
-  void RemoveWidget(GtkWidget* widget);
-
-  //
-  // The following methods are only for use by gtk signal handlers.
-  //
-
-  // Returns true if this widget is a descendant of one of our registered
-  // root widgets and not in the set of ignored widgets.  If |profile| is
-  // not null, return the profile where notifications associated with this
-  // widget should be sent.
-  bool IsWidgetAccessible(GtkWidget* widget, Profile** profile);
-
-  // Return the name of a widget.
-  std::string GetWidgetName(GtkWidget* widget);
-
-  // Called by the signal handler.  Checks the type of the widget and
-  // calls one of the more specific Send*Notification methods, below.
-  void DispatchAccessibilityNotification(
-      GtkWidget* widget, NotificationType type);
-
-  // Each of these methods constructs an AccessibilityControlInfo object
-  // and sends a notification of a specific accessibility event.
-  void SendRadioButtonNotification(
-      GtkWidget* widget, NotificationType type, Profile* profile);
-  void SendCheckboxNotification(
-      GtkWidget* widget, NotificationType type, Profile* profile);
-  void SendButtonNotification(
-      GtkWidget* widget, NotificationType type, Profile* profile);
-  void SendTextBoxNotification(
-      GtkWidget* widget, NotificationType type, Profile* profile);
-  void SendTabNotification(
-      GtkWidget* widget, NotificationType type, Profile* profile);
-
-  void InstallEventListeners();
-  void RemoveEventListeners();
-
- private:
-  AccessibilityEventRouter();
-  virtual ~AccessibilityEventRouter() {}
-
-  friend struct DefaultSingletonTraits<AccessibilityEventRouter>;
-
-  // The set of all root widgets; only descendants of these will generate
-  // accessibility notifications.
-  base::hash_map<GtkWidget*, Profile*> root_widget_profile_map_;
-
-  // Extra information about specific widgets.
-  base::hash_map<GtkWidget*, WidgetInfo> widget_info_map_;
-
-  // Installed event listener hook ids so we can remove them later.
-  gulong focus_hook_;
-  gulong click_hook_;
-  gulong toggle_hook_;
-  gulong switch_page_hook_;
-
-  std::vector<gulong> event_listener_hook_ids_;
-};
-
-#endif  // CHROME_BROWSER_GTK_ACCESSIBILITY_EVENT_ROUTER_GTK_H_
diff --git a/chrome/browser/gtk/accessible_widget_helper_gtk.cc b/chrome/browser/gtk/accessible_widget_helper_gtk.cc
deleted file mode 100644
index 64710b1..0000000
--- a/chrome/browser/gtk/accessible_widget_helper_gtk.cc
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright (c) 2010 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/gtk/accessible_widget_helper_gtk.h"
-
-#include "app/l10n_util.h"
-#include "chrome/browser/profile.h"
-
-AccessibleWidgetHelper::AccessibleWidgetHelper(
-    GtkWidget* root_widget, Profile* profile)
-    : accessibility_event_router_(AccessibilityEventRouter::GetInstance()),
-      root_widget_(root_widget) {
-  accessibility_event_router_->AddRootWidget(root_widget_, profile);
-}
-
-AccessibleWidgetHelper::~AccessibleWidgetHelper() {
-  if (root_widget_)
-    accessibility_event_router_->RemoveRootWidget(root_widget_);
-  for (unsigned int i = 0; i < managed_widgets_.size(); i++) {
-    accessibility_event_router_->RemoveWidget(managed_widgets_[i]);
-  }
-}
-
-void AccessibleWidgetHelper::IgnoreWidget(GtkWidget* widget) {
-  accessibility_event_router_->IgnoreWidget(widget);
-  managed_widgets_.push_back(widget);
-}
-
-void AccessibleWidgetHelper::SetWidgetName(
-    GtkWidget* widget, std::string name) {
-  accessibility_event_router_->SetWidgetName(widget, name);
-  managed_widgets_.push_back(widget);
-}
-
-void AccessibleWidgetHelper::SetWidgetName(
-    GtkWidget* widget, int string_id) {
-  std::string name = l10n_util::GetStringUTF8(string_id);
-  accessibility_event_router_->SetWidgetName(widget, name);
-  managed_widgets_.push_back(widget);
-}
diff --git a/chrome/browser/gtk/accessible_widget_helper_gtk.h b/chrome/browser/gtk/accessible_widget_helper_gtk.h
deleted file mode 100644
index 775b92e..0000000
--- a/chrome/browser/gtk/accessible_widget_helper_gtk.h
+++ /dev/null
@@ -1,58 +0,0 @@
-// Copyright (c) 2010 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 CHROME_BROWSER_GTK_ACCESSIBLE_WIDGET_HELPER_GTK_H_
-#define CHROME_BROWSER_GTK_ACCESSIBLE_WIDGET_HELPER_GTK_H_
-
-#include <gtk/gtk.h>
-
-#include <string>
-#include <vector>
-
-#include "base/basictypes.h"
-#include "base/singleton.h"
-#include "chrome/browser/gtk/accessibility_event_router_gtk.h"
-#include "chrome/common/accessibility_events.h"
-
-class Profile;
-
-// Helper class that helps to manage the accessibility information for all
-// of the widgets in a container.  Create an instance of this class for
-// each container GtkWidget (like a dialog) that should send accessibility
-// events for all of its descendants.
-//
-// Most controls have default behavior for accessibility; when this needs
-// to be augmented, call one of the methods below to ignore a particular
-// widget or change its details.
-//
-// All of the information managed by this class is registered with the
-// (global) AccessibilityEventRouter and unregistered when this object is
-// destroyed.
-class AccessibleWidgetHelper {
- public:
-  // Contruct an AccessibleWidgetHelper that makes the given root widget
-  // accessible for the lifetime of this object, sending accessibility
-  // notifications to the given profile.
-  AccessibleWidgetHelper(GtkWidget* root_widget, Profile* profile);
-
-  virtual ~AccessibleWidgetHelper();
-
-  // Do not send accessibility events for this widget
-  void IgnoreWidget(GtkWidget* widget);
-
-  // Use the following string as the name of this widget, instead of the
-  // gtk label associated with the widget.
-  void SetWidgetName(GtkWidget* widget, std::string name);
-
-  // Use the following string as the name of this widget, instead of the
-  // gtk label associated with the widget.
-  void SetWidgetName(GtkWidget* widget, int string_id);
-
- private:
-  AccessibilityEventRouter* accessibility_event_router_;
-  GtkWidget* root_widget_;
-  std::vector<GtkWidget*> managed_widgets_;
-};
-
-#endif  // CHROME_BROWSER_GTK_ACCESSIBLE_WIDGET_HELPER_GTK_H_
diff --git a/chrome/browser/gtk/location_bar_view_gtk.cc b/chrome/browser/gtk/location_bar_view_gtk.cc
index a52105d..2842fcd 100644
--- a/chrome/browser/gtk/location_bar_view_gtk.cc
+++ b/chrome/browser/gtk/location_bar_view_gtk.cc
@@ -19,7 +19,6 @@
 #include "chrome/browser/browser.h"
 #include "chrome/browser/browser_list.h"
 #include "chrome/browser/command_updater.h"
-#include "chrome/browser/extensions/extension_accessibility_api_constants.h"
 #include "chrome/browser/extensions/extension_action_context_menu_model.h"
 #include "chrome/browser/extensions/extension_browser_event_router.h"
 #include "chrome/browser/extensions/extension_tabs_module.h"
@@ -33,7 +32,6 @@
 #include "chrome/browser/search_engines/template_url.h"
 #include "chrome/browser/search_engines/template_url_model.h"
 #include "chrome/browser/tab_contents/tab_contents.h"
-#include "chrome/common/accessibility_events.h"
 #include "chrome/common/extensions/extension.h"
 #include "chrome/common/extensions/extension_action.h"
 #include "chrome/common/gtk_util.h"
@@ -451,14 +449,6 @@ void LocationBarViewGtk::OnKillFocus() {
 }
 
 void LocationBarViewGtk::OnSetFocus() {
-  AccessibilityTextBoxInfo info(
-      profile_,
-      l10n_util::GetStringUTF8(IDS_ACCNAME_LOCATION).c_str(),
-      false);
-  NotificationService::current()->Notify(
-      NotificationType::ACCESSIBILITY_CONTROL_FOCUSED,
-      Source<Profile>(profile_),
-      Details<AccessibilityTextBoxInfo>(&info));
 }
 
 SkBitmap LocationBarViewGtk::GetFavIcon() const {
diff --git a/chrome/browser/gtk/options/advanced_contents_gtk.cc b/chrome/browser/gtk/options/advanced_contents_gtk.cc
index 2ceb997..d493a39 100644
--- a/chrome/browser/gtk/options/advanced_contents_gtk.cc
+++ b/chrome/browser/gtk/options/advanced_contents_gtk.cc
@@ -18,7 +18,6 @@
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/download/download_manager.h"
 #include "chrome/browser/fonts_languages_window.h"
-#include "chrome/browser/gtk/accessible_widget_helper_gtk.h"
 #include "chrome/browser/gtk/gtk_chrome_link_button.h"
 #include "chrome/browser/gtk/options/cookies_view.h"
 #include "chrome/browser/gtk/options/options_layout_gtk.h"
@@ -83,7 +82,6 @@ GtkWidget* AddCheckButtonWithWrappedLabel(int string_id,
   GtkWidget* checkbox = CreateCheckButtonWithWrappedLabel(string_id);
   gtk_box_pack_start(GTK_BOX(container), checkbox, FALSE, FALSE, 0);
   g_signal_connect(checkbox, "toggled", handler, data);
-
   return checkbox;
 }
 
@@ -169,19 +167,13 @@ class DownloadSection : public OptionsPageBase {
   // then turning around and saving them again.
   bool pref_changing_;
 
-  scoped_ptr<AccessibleWidgetHelper> accessible_widget_helper_;
-
   DISALLOW_COPY_AND_ASSIGN(DownloadSection);
 };
 
 DownloadSection::DownloadSection(Profile* profile)
-    : OptionsPageBase(profile),
-      pref_changing_(true) {
+    : OptionsPageBase(profile), pref_changing_(true) {
   page_ = gtk_vbox_new(FALSE, gtk_util::kControlSpacing);
 
-  accessible_widget_helper_.reset(new AccessibleWidgetHelper(
-      page_, profile));
-
   // Download location options.
   download_location_button_ = gtk_file_chooser_button_new(
       l10n_util::GetStringUTF8(
@@ -220,9 +212,6 @@ DownloadSection::DownloadSection(Profile* profile)
                      FALSE, FALSE, 0);
   g_signal_connect(download_ask_for_save_location_checkbox_, "clicked",
                    G_CALLBACK(OnDownloadAskForSaveLocationChanged), this);
-  accessible_widget_helper_->SetWidgetName(
-      download_ask_for_save_location_checkbox_,
-      IDS_OPTIONS_DOWNLOADLOCATION_ASKFORSAVELOCATION);
 
   // Option for resetting file handlers.
   reset_file_handlers_label_ = CreateWrappedLabel(
@@ -370,7 +359,6 @@ NetworkSection::NetworkSection(Profile* profile)
           IDS_OPTIONS_PROXIES_CONFIGURE_BUTTON).c_str());
   g_signal_connect(change_proxies_button, "clicked",
                    G_CALLBACK(OnChangeProxiesButtonClicked), this);
-
   // Stick it in an hbox so it doesn't expand to the whole width.
   GtkWidget* button_hbox = gtk_hbox_new(FALSE, 0);
   gtk_box_pack_start(GTK_BOX(button_hbox),
@@ -538,8 +526,6 @@ class PrivacySection : public OptionsPageBase {
   // then turning around and saving them again.
   bool pref_changing_;
 
-  scoped_ptr<AccessibleWidgetHelper> accessible_widget_helper_;
-
   DISALLOW_COPY_AND_ASSIGN(PrivacySection);
 };
 
@@ -548,9 +534,6 @@ PrivacySection::PrivacySection(Profile* profile)
       pref_changing_(true) {
   page_ = gtk_vbox_new(FALSE, gtk_util::kControlSpacing);
 
-  accessible_widget_helper_.reset(new AccessibleWidgetHelper(
-      page_, profile));
-
   GtkWidget* section_description_label = CreateWrappedLabel(
       IDS_OPTIONS_DISABLE_SERVICES);
   gtk_misc_set_alignment(GTK_MISC(section_description_label), 0, 0);
@@ -574,8 +557,6 @@ PrivacySection::PrivacySection(Profile* profile)
                      FALSE, FALSE, 0);
   g_signal_connect(enable_link_doctor_checkbox_, "clicked",
                    G_CALLBACK(OnEnableLinkDoctorChange), this);
-  accessible_widget_helper_->SetWidgetName(
-      enable_link_doctor_checkbox_, IDS_OPTIONS_LINKDOCTOR_PREF);
 
   enable_suggest_checkbox_ = CreateCheckButtonWithWrappedLabel(
       IDS_OPTIONS_SUGGEST_PREF);
@@ -583,8 +564,6 @@ PrivacySection::PrivacySection(Profile* profile)
                      FALSE, FALSE, 0);
   g_signal_connect(enable_suggest_checkbox_, "clicked",
                    G_CALLBACK(OnEnableSuggestChange), this);
-  accessible_widget_helper_->SetWidgetName(
-      enable_suggest_checkbox_, IDS_OPTIONS_SUGGEST_PREF);
 
   enable_dns_prefetching_checkbox_ = CreateCheckButtonWithWrappedLabel(
       IDS_NETWORK_DNS_PREFETCH_ENABLED_DESCRIPTION);
@@ -592,9 +571,6 @@ PrivacySection::PrivacySection(Profile* profile)
                      FALSE, FALSE, 0);
   g_signal_connect(enable_dns_prefetching_checkbox_, "clicked",
                    G_CALLBACK(OnDNSPrefetchingChange), this);
-  accessible_widget_helper_->SetWidgetName(
-      enable_dns_prefetching_checkbox_,
-      IDS_NETWORK_DNS_PREFETCH_ENABLED_DESCRIPTION);
 
   enable_safe_browsing_checkbox_ = CreateCheckButtonWithWrappedLabel(
       IDS_OPTIONS_SAFEBROWSING_ENABLEPROTECTION);
@@ -602,9 +578,6 @@ PrivacySection::PrivacySection(Profile* profile)
                      FALSE, FALSE, 0);
   g_signal_connect(enable_safe_browsing_checkbox_, "clicked",
                    G_CALLBACK(OnSafeBrowsingChange), this);
-  accessible_widget_helper_->SetWidgetName(
-      enable_safe_browsing_checkbox_,
-      IDS_OPTIONS_SAFEBROWSING_ENABLEPROTECTION);
 
 #if defined(GOOGLE_CHROME_BUILD)
   reporting_enabled_checkbox_ = CreateCheckButtonWithWrappedLabel(
@@ -613,8 +586,6 @@ PrivacySection::PrivacySection(Profile* profile)
                      FALSE, FALSE, 0);
   g_signal_connect(reporting_enabled_checkbox_, "clicked",
                    G_CALLBACK(OnLoggingChange), this);
-  accessible_widget_helper_->SetWidgetName(
-      reporting_enabled_checkbox_, IDS_OPTIONS_ENABLE_LOGGING);
 #endif
 
   GtkWidget* cookie_description_label = gtk_label_new(
@@ -649,7 +620,6 @@ PrivacySection::PrivacySection(Profile* profile)
           IDS_OPTIONS_COOKIES_SHOWCOOKIES_WEBSITE_PERMISSIONS).c_str());
   g_signal_connect(show_cookies_button, "clicked",
                    G_CALLBACK(OnShowCookiesButtonClicked), this);
-
   // Stick it in an hbox so it doesn't expand to the whole width.
   GtkWidget* button_hbox = gtk_hbox_new(FALSE, 0);
   gtk_box_pack_start(GTK_BOX(button_hbox), show_cookies_button,
@@ -906,19 +876,13 @@ class SecuritySection : public OptionsPageBase {
   // then turning around and saving them again.
   bool pref_changing_;
 
-  scoped_ptr<AccessibleWidgetHelper> accessible_widget_helper_;
-
   DISALLOW_COPY_AND_ASSIGN(SecuritySection);
 };
 
 SecuritySection::SecuritySection(Profile* profile)
-    : OptionsPageBase(profile),
-      pref_changing_(true) {
+    : OptionsPageBase(profile), pref_changing_(true) {
   page_ = gtk_vbox_new(FALSE, gtk_util::kControlSpacing);
 
-  accessible_widget_helper_.reset(new AccessibleWidgetHelper(
-      page_, profile));
-
   GtkWidget* manage_certificates_label = CreateWrappedLabel(
       IDS_OPTIONS_CERTIFICATES_LABEL);
   gtk_misc_set_alignment(GTK_MISC(manage_certificates_label), 0, 0);
@@ -945,20 +909,13 @@ SecuritySection::SecuritySection(Profile* profile)
   rev_checking_enabled_checkbox_ = AddCheckButtonWithWrappedLabel(
       IDS_OPTIONS_SSL_CHECKREVOCATION, page_,
       G_CALLBACK(OnRevCheckingEnabledToggled), this);
-  accessible_widget_helper_->SetWidgetName(
-      rev_checking_enabled_checkbox_, IDS_OPTIONS_SSL_CHECKREVOCATION);
   ssl2_enabled_checkbox_ = AddCheckButtonWithWrappedLabel(
       IDS_OPTIONS_SSL_USESSL2, page_, G_CALLBACK(OnSSL2EnabledToggled), this);
-  accessible_widget_helper_->SetWidgetName(
-      ssl2_enabled_checkbox_, IDS_OPTIONS_SSL_USESSL2);
   ssl3_enabled_checkbox_ = AddCheckButtonWithWrappedLabel(
       IDS_OPTIONS_SSL_USESSL3, page_, G_CALLBACK(OnSSL3EnabledToggled), this);
-  accessible_widget_helper_->SetWidgetName(
-      ssl3_enabled_checkbox_, IDS_OPTIONS_SSL_USESSL3);
   tls1_enabled_checkbox_ = AddCheckButtonWithWrappedLabel(
       IDS_OPTIONS_SSL_USETLS1, page_, G_CALLBACK(OnTLS1EnabledToggled), this);
-  accessible_widget_helper_->SetWidgetName(
-      tls1_enabled_checkbox_, IDS_OPTIONS_SSL_USETLS1);
+
 
   rev_checking_enabled_.Init(prefs::kCertRevocationCheckingEnabled,
                              profile->GetPrefs(), this);
diff --git a/chrome/browser/gtk/options/content_page_gtk.h b/chrome/browser/gtk/options/content_page_gtk.h
index b5ed627a..ba70861 100644
--- a/chrome/browser/gtk/options/content_page_gtk.h
+++ b/chrome/browser/gtk/options/content_page_gtk.h
@@ -7,9 +7,9 @@
 
 #include <gtk/gtk.h>
 
+#include "chrome/browser/sync/profile_sync_service.h"
 #include "chrome/browser/options_page_base.h"
 #include "chrome/browser/profile.h"
-#include "chrome/browser/sync/profile_sync_service.h"
 #include "chrome/common/pref_member.h"
 
 class ContentPageGtk : public OptionsPageBase,
diff --git a/chrome/browser/gtk/options/general_page_gtk.cc b/chrome/browser/gtk/options/general_page_gtk.cc
index d9ae203..b491c629 100644
--- a/chrome/browser/gtk/options/general_page_gtk.cc
+++ b/chrome/browser/gtk/options/general_page_gtk.cc
@@ -17,7 +17,6 @@
 #include "chrome/browser/session_startup_pref.h"
 #include "chrome/browser/tab_contents/tab_contents.h"
 #include "chrome/common/gtk_util.h"
-#include "chrome/common/notification_service.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/pref_service.h"
 #include "chrome/common/url_constants.h"
@@ -294,7 +293,6 @@ GtkWidget* GeneralPageGtk::InitHomepageGroup() {
                    G_CALLBACK(OnNewTabIsHomePageToggled), this);
   gtk_box_pack_start(GTK_BOX(homepage_hbox), homepage_use_url_radio_,
                      FALSE, FALSE, 0);
-
   homepage_use_url_entry_ = gtk_entry_new();
   g_signal_connect(G_OBJECT(homepage_use_url_entry_), "changed",
                    G_CALLBACK(OnHomepageUseUrlEntryChanged), this);
@@ -363,7 +361,6 @@ GtkWidget* GeneralPageGtk::InitDefaultBrowserGroup() {
           l10n_util::GetStringUTF16(IDS_PRODUCT_NAME)).c_str());
   g_signal_connect(G_OBJECT(default_browser_use_as_default_button_), "clicked",
                    G_CALLBACK(OnBrowserUseAsDefaultClicked), this);
-
   gtk_box_pack_start(GTK_BOX(vbox), default_browser_use_as_default_button_,
                      FALSE, FALSE, 0);
 
@@ -380,7 +377,6 @@ void GeneralPageGtk::OnStartupRadioToggled(GtkToggleButton* toggle_button,
                                            GeneralPageGtk* general_page) {
   if (general_page->initializing_)
     return;
-
   if (!gtk_toggle_button_get_active(toggle_button)) {
     // When selecting a radio button, we get two signals (one for the old radio
     // being toggled off, one for the new one being toggled on.)  Ignore the
diff --git a/chrome/browser/gtk/options/options_window_gtk.cc b/chrome/browser/gtk/options/options_window_gtk.cc
index 709ee45..2a12e12 100644
--- a/chrome/browser/gtk/options/options_window_gtk.cc
+++ b/chrome/browser/gtk/options/options_window_gtk.cc
@@ -8,19 +8,15 @@
 
 #include "app/l10n_util.h"
 #include "base/message_loop.h"
-#include "base/scoped_ptr.h"
 #include "chrome/browser/browser_list.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/browser_window.h"
-#include "chrome/browser/gtk/accessible_widget_helper_gtk.h"
 #include "chrome/browser/gtk/options/advanced_page_gtk.h"
 #include "chrome/browser/gtk/options/content_page_gtk.h"
 #include "chrome/browser/gtk/options/general_page_gtk.h"
 #include "chrome/browser/profile.h"
 #include "chrome/browser/window_sizer.h"
-#include "chrome/common/accessibility_events.h"
 #include "chrome/common/gtk_util.h"
-#include "chrome/common/notification_service.h"
 #include "chrome/common/pref_member.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/common/pref_service.h"
@@ -72,8 +68,6 @@ class OptionsWindowGtk {
   // The last page the user was on when they opened the Options window.
   IntegerPrefMember last_selected_page_;
 
-  scoped_ptr<AccessibleWidgetHelper> accessibility_widget_helper_;
-
   DISALLOW_COPY_AND_ASSIGN(OptionsWindowGtk);
 };
 
@@ -91,7 +85,6 @@ OptionsWindowGtk::OptionsWindowGtk(Profile* profile)
       general_page_(profile_),
       content_page_(profile_),
       advanced_page_(profile_) {
-
   // We don't need to observe changes in this value.
   last_selected_page_.Init(prefs::kOptionsWindowLastTabIndex,
                            g_browser_process->local_state(), NULL);
@@ -112,9 +105,6 @@ OptionsWindowGtk::OptionsWindowGtk(Profile* profile)
   gtk_box_set_spacing(GTK_BOX(GTK_DIALOG(dialog_)->vbox),
                       gtk_util::kContentAreaSpacing);
 
-  accessibility_widget_helper_.reset(new AccessibleWidgetHelper(
-      dialog_, profile));
-
   notebook_ = gtk_notebook_new();
 
 #if defined(OS_CHROMEOS)
@@ -258,30 +248,10 @@ void ShowOptionsWindow(OptionsPage page,
                        OptionsGroup highlight_group,
                        Profile* profile) {
   DCHECK(profile);
-
   // If there's already an existing options window, activate it and switch to
   // the specified page.
   if (!options_window) {
-    // Creating and initializing a bunch of controls generates a bunch of
-    // spurious events as control values change. Temporarily suppress
-    // accessibility events until the window is created.
-    profile->PauseAccessibilityEvents();
-
-    // Create the options window.
     options_window = new OptionsWindowGtk(profile);
-
-    // Resume accessibility events.
-    profile->ResumeAccessibilityEvents();
   }
   options_window->ShowOptionsPage(page, highlight_group);
-
-  std::string name = l10n_util::GetStringFUTF8(
-      IDS_OPTIONS_DIALOG_TITLE,
-      WideToUTF16(l10n_util::GetString(IDS_PRODUCT_NAME)));
-  AccessibilityWindowInfo info(profile, name);
-
-  NotificationService::current()->Notify(
-      NotificationType::ACCESSIBILITY_WINDOW_OPENED,
-      Source<Profile>(profile),
-      Details<AccessibilityWindowInfo>(&info));
 }
diff --git a/chrome/browser/profile.h b/chrome/browser/profile.h
index 39b1c3d..0cc0e16 100644
--- a/chrome/browser/profile.h
+++ b/chrome/browser/profile.h
@@ -102,7 +102,7 @@ class Profile {
   // Value that represents no profile Id.
   static const ProfileId InvalidProfileId;
 
-  Profile() : restored_last_session_(false), accessibility_pause_level_(0) {}
+  Profile() : restored_last_session_(false) {}
   virtual ~Profile() {}
 
   // Profile prefs are registered as soon as the prefs are loaded for the first
@@ -381,33 +381,11 @@ class Profile {
     return restored_last_session_;
   }
 
-  // Stop sending accessibility events until ResumeAccessibilityEvents().
-  // Calls to Pause nest; no events will be sent until the number of
-  // Resume calls matches the number of Pause calls received.
-  void PauseAccessibilityEvents() {
-    accessibility_pause_level_++;
-  }
-
-  void ResumeAccessibilityEvents() {
-    DCHECK(accessibility_pause_level_ > 0);
-    accessibility_pause_level_--;
-  }
-
-  bool ShouldSendAccessibilityEvents() {
-    return 0 == accessibility_pause_level_;
-  }
-
  protected:
   static URLRequestContextGetter* default_request_context_;
 
  private:
   bool restored_last_session_;
-
-  // Accessibility events will only be propagated when the pause
-  // level is zero.  PauseAccessibilityEvents and ResumeAccessibilityEvents
-  // increment and decrement the level, respectively, rather than set it to
-  // true or false, so that calls can be nested.
-  int accessibility_pause_level_;
 };
 
 class OffTheRecordProfileImpl;