MacViews a11y: Sync VoiceOver cursor with keyboard focus.

content/browser/accessibility/browser_accessibility_manager_mac.mm

 // 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.
 
 #include "content/browser/accessibility/browser_accessibility_manager_mac.h"
 
+#include "base/logging.h"
 #import "base/mac/mac_util.h"
 #import "base/mac/sdk_forward_declarations.h"
-#include "base/logging.h"
 #include "base/strings/sys_string_conversions.h"
 #include "base/strings/utf_string_conversions.h"
 #import "content/browser/accessibility/browser_accessibility_cocoa.h"
 #import "content/browser/accessibility/browser_accessibility_mac.h"
 #include "content/common/accessibility_messages.h"
 
+#import "tmp-traceclass.h"
+
 namespace {
 
 // Declare undocumented accessibility constants and enums only present in
 // WebKit.
 
 enum AXTextStateChangeType {
   AXTextStateChangeTypeUnknown,
   AXTextStateChangeTypeEdit,
   AXTextStateChangeTypeSelectionMove,
   AXTextStateChangeTypeSelectionExtend
@@ skipping 153 matching lines @@
         // |NSAccessibilityFocusedUIElementChangedNotification|, but this is
         // handled elsewhere.
         return;
       }
       break;
     case ui::AX_EVENT_AUTOCORRECTION_OCCURED:
       mac_notification = NSAccessibilityAutocorrectionOccurredNotification;
       break;
     case ui::AX_EVENT_FOCUS:
       mac_notification = NSAccessibilityFocusedUIElementChangedNotification;
+      [Tracer startTraceBrowserAccessibility];
+      NSAccessibilityPostNotification(native_node, mac_notification);
+      [Tracer browserAccessibilityEndTrace];
+      return;

[Patti Lor, 2016/08/04 02:06:26]

With tracing removed, this hunk is deleted.

       break;
     case ui::AX_EVENT_LAYOUT_COMPLETE:
       mac_notification = NSAccessibilityLayoutCompleteNotification;
       break;
     case ui::AX_EVENT_LOAD_COMPLETE:
       mac_notification = NSAccessibilityLoadCompleteNotification;
       break;
     case ui::AX_EVENT_INVALID_STATUS_CHANGED:
       mac_notification = NSAccessibilityInvalidStatusChangedNotification;
       break;
@@ skipping 266 matching lines @@
   }
 
   return @{
     NSAccessibilityTextStateChangeTypeKey : @(AXTextStateChangeTypeEdit),
     NSAccessibilityTextChangeValues : changes,
     NSAccessibilityTextChangeElement : native_node
   };
 }
 
 }  // namespace content