Rename confusing child_id to unique_id_win

content/browser/accessibility/browser_accessibility_win.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_WIN_H_
 #define CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_WIN_H_
 
 #include <atlbase.h>
 #include <atlcom.h>
 #include <oleacc.h>
@@ skipping 73 matching lines @@
 
   // Mappings from roles and states to human readable strings. Initialize
   // with |InitializeStringMaps|.
   static std::map<int32, string16> role_string_map;
   static std::map<int32, string16> state_string_map;
 
   CONTENT_EXPORT BrowserAccessibilityWin();
 
   CONTENT_EXPORT virtual ~BrowserAccessibilityWin();
 
+  // The Windows-specific unique ID, used as the child ID for MSAA methods
+  // like NotifyWinEvent, and as the unique ID for IAccessible2 and ISimpleDOM.
+  LONG unique_id_win() const { return unique_id_win_; }
+
   //
   // BrowserAccessibility methods.
   //
   CONTENT_EXPORT virtual void PreInitialize() OVERRIDE;
   CONTENT_EXPORT virtual void PostInitialize() OVERRIDE;
   CONTENT_EXPORT virtual void NativeAddReference() OVERRIDE;
   CONTENT_EXPORT virtual void NativeReleaseReference() OVERRIDE;
   CONTENT_EXPORT virtual bool IsNative() const OVERRIDE;
 
   //
@@ skipping 709 matching lines @@
   // return the offset of that boundary.
   LONG FindBoundary(const string16& text,
                     IA2TextBoundaryType ia2_boundary,
                     LONG start_offset,
                     ui::TextBoundaryDirection direction);
 
   // Return a pointer to the object corresponding to the given renderer_id,
   // does not make a new reference.
   BrowserAccessibilityWin* GetFromRendererID(int32 renderer_id);
 
+  // Windows-specific unique ID (unique within the browser process),
+  // used for get_accChild, NotifyWinEvent, and as the unique ID for
+  // IAccessible2 and ISimpleDOM.
+  LONG unique_id_win_;
+
   // IAccessible role and state.
   int32 ia_role_;
   int32 ia_state_;
 
   // IAccessible2 role and state.
   int32 ia2_role_;
   int32 ia2_state_;
 
   // IAccessible2 attributes.
   std::vector<string16> ia2_attributes_;
@@ skipping 20 matching lines @@
   string16 hypertext_;
 
   // Maps the |hypertext_| embedded character offset to an index in
   // |hyperlinks_|.
   std::map<int32, int32> hyperlink_offset_to_index_;
 
   // Collection of non-static text child indicies, each of which corresponds to
   // a hyperlink.
   std::vector<int32> hyperlinks_;
 
+  // The next unique id to use.
+  static LONG next_unique_id_win_;
+
   // Give BrowserAccessibility::Create access to our constructor.
   friend class BrowserAccessibility;
   friend class BrowserAccessibilityRelation;
 
   DISALLOW_COPY_AND_ASSIGN(BrowserAccessibilityWin);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_ACCESSIBILITY_BROWSER_ACCESSIBILITY_WIN_H_