Adjust ChromeVox (spoken feedback) strings and make it possible for announcemen

chrome/browser/accessibility/accessibility_extension_api.h

 // Copyright (c) 2012 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_ACCESSIBILITY_ACCESSIBILITY_EXTENSION_API_H_
 #define CHROME_BROWSER_ACCESSIBILITY_ACCESSIBILITY_EXTENSION_API_H_
 
 #include <string>
 
 #include "base/compiler_specific.h"
 #include "base/memory/singleton.h"
 #include "base/values.h"
 #include "chrome/browser/accessibility/accessibility_events.h"
 #include "chrome/browser/extensions/chrome_extension_function.h"
 #include "ui/base/accessibility/accessibility_types.h"
 
+namespace extensions {
+class ExtensionHost;
+} // namespace extensions
+
 // Observes the profile and routes accessibility notifications as events
 // to the extension system.
 class ExtensionAccessibilityEventRouter {
  public:
   typedef base::Callback<void(ui::AccessibilityTypes::Event,
                               const AccessibilityControlInfo*)>
       ControlEventCallback;
   // Single instance of the event router.
   static ExtensionAccessibilityEventRouter* GetInstance();
 
@@ skipping 20 matching lines @@
                          const AccessibilityWindowInfo* info);
 
   // Route a menu-related accessibility event.
   void HandleMenuEvent(ui::AccessibilityTypes::Event event,
                        const AccessibilityMenuInfo* info);
 
   // Route a control-related accessibility event.
   void HandleControlEvent(ui::AccessibilityTypes::Event event,
                           const AccessibilityControlInfo* info);
 
+  void OnChromeVoxLoadStateChanged(
+      Profile* profile,
+      bool loading,
+      bool make_announcements);
+
+  static void DispatchEventToChromeVox(
+      Profile* profile,
+      const char* event_name,
+      scoped_ptr<base::ListValue> event_args);
+
  private:
   friend struct DefaultSingletonTraits<ExtensionAccessibilityEventRouter>;
 
   ExtensionAccessibilityEventRouter();
   virtual ~ExtensionAccessibilityEventRouter();
 
   void OnWindowOpened(const AccessibilityWindowInfo* details);
   void OnControlFocused(const AccessibilityControlInfo* details);
   void OnControlAction(const AccessibilityControlInfo* details);
   void OnTextChanged(const AccessibilityControlInfo* details);
@@ skipping 50 matching lines @@
 class AccessibilityGetAlertsForTabFunction
     : public ChromeSyncExtensionFunction {
   virtual ~AccessibilityGetAlertsForTabFunction() {}
   virtual bool RunImpl() OVERRIDE;
   DECLARE_EXTENSION_FUNCTION(
       "experimental.accessibility.getAlertsForTab",
       EXPERIMENTAL_ACCESSIBILITY_GETALERTSFORTAB)
 };
 
 #endif  // CHROME_BROWSER_ACCESSIBILITY_ACCESSIBILITY_EXTENSION_API_H_