Draw a focus ring around native views when ChromeVox is running.

chrome/browser/accessibility/accessibility_events.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_EVENTS_H_
 #define CHROME_BROWSER_ACCESSIBILITY_ACCESSIBILITY_EVENTS_H_
 
 #include <string>
 #include "base/compiler_specific.h"
 #include "ui/accessibility/ax_enums.h"
+#include "ui/gfx/rect.h"
 
 class AccessibilityControlInfo;
 class AccessibilityMenuInfo;
 class AccessibilityWindowInfo;
 class Profile;
 
 namespace base {
 class DictionaryValue;
 }
 
@@ skipping 42 matching lines @@
   virtual void SerializeToDict(base::DictionaryValue* dict) const OVERRIDE;
 
   // Return the specific type of this control, which will be one of the
   // string constants defined in extension_accessibility_api_constants.h.
   virtual const char* type() const = 0;
 
   const std::string& name() const { return name_; }
 
   const std::string& context() const { return context_; }
 
+  void set_bounds(const gfx::Rect& bounds) { bounds_ = bounds; }
+  const gfx::Rect& bounds() const { return bounds_; }
+
  protected:
   AccessibilityControlInfo(Profile* profile,
                            const std::string& name);
 
   void set_context(const std::string& context) { context_ = context; }
 
   // The name of the control, like "OK" or "Password".
   std::string name_;
 
   // A string describing the context of the control, such as the name of
   // the group or toolbar it's contained in.
   std::string context_;
+
+  // The bounds of the control in global screen coordinates.
+  gfx::Rect bounds_;
 };
 
 // Accessibility information about a window passed to onWindowOpened
 // and onWindowClosed event listeners.
 class AccessibilityWindowInfo : public AccessibilityControlInfo {
  public:
   AccessibilityWindowInfo(Profile* profile, const std::string& window_name);
 
   virtual const char* type() const OVERRIDE;
 };
@@ skipping 309 matching lines @@
 
 // Accessibility information about an alert passed to onControlAction event.
 class AccessibilityAlertInfo : public AccessibilityControlInfo {
  public:
   AccessibilityAlertInfo(Profile* profile, const std::string& name);
 
   virtual const char* type() const OVERRIDE;
 };
 
 #endif  // CHROME_BROWSER_ACCESSIBILITY_ACCESSIBILITY_EVENTS_H_