Add verbose logging for native accessibility events.

content/browser/accessibility/browser_accessibility_manager_mac.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 CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_MANAGER_MAC_H_
 #define CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_MANAGER_MAC_H_
 
 #import <Cocoa/Cocoa.h>
 #include <stdint.h>
 
@@ skipping 17 matching lines @@
       BrowserAccessibilityDelegate* delegate,
       BrowserAccessibilityFactory* factory = new BrowserAccessibilityFactory());
 
   ~BrowserAccessibilityManagerMac() override;
 
   static ui::AXTreeUpdate GetEmptyDocument();
 
   BrowserAccessibility* GetFocus() override;
 
   // Implementation of BrowserAccessibilityManager.
-  void NotifyAccessibilityEvent(ui::AXEvent event_type,
-                                BrowserAccessibility* node) override;
+  void NotifyAccessibilityEvent(
+      BrowserAccessibilityEvent::Source source,
+      ui::AXEvent event_type,
+      BrowserAccessibility* node) override;
 
   void OnAccessibilityEvents(
       const std::vector<AXEventNotificationDetails>& details) override;
 
   NSView* parent_view() { return parent_view_; }
 
  private:
   // AXTreeDelegate methods.
   void OnNodeDataWillChange(ui::AXTree* tree,
                             const ui::AXNodeData& old_node_data,
@@ skipping 22 matching lines @@
   // update. Used by NSAccessibilityValueChangedNotification.
   // Maps AXNode IDs to name or value attribute changes.
   std::map<int32_t, base::string16> text_edits_;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserAccessibilityManagerMac);
 };
 
 }
 
 #endif  // CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_MANAGER_MAC_H_