Rename confusing child_id to unique_id_win

content/browser/accessibility/browser_accessibility_manager_win.h

Index: content/browser/accessibility/browser_accessibility_manager_win.h
diff --git a/content/browser/accessibility/browser_accessibility_manager_win.h b/content/browser/accessibility/browser_accessibility_manager_win.h
index 2eefae974821bf23f1c1fd20fa6f7cea24dcf35f..e82f0656a9c877b2cff0495becfc81df7143f9d2 100644
--- a/content/browser/accessibility/browser_accessibility_manager_win.h
+++ b/content/browser/accessibility/browser_accessibility_manager_win.h
@@ -38,13 +38,20 @@ class CONTENT_EXPORT BrowserAccessibilityManagerWin
   }
 
   // BrowserAccessibilityManager methods
-  virtual void NotifyAccessibilityEvent(int type, BrowserAccessibility* node);
+  virtual void AddNodeToMap(BrowserAccessibility* node);
+  virtual void RemoveNode(BrowserAccessibility* node) OVERRIDE;
+  virtual void NotifyAccessibilityEvent(int type, BrowserAccessibility* node)
+      OVERRIDE;
 
   // Track this object and post a VISIBLE_DATA_CHANGED notification when
   // its container scrolls.
   // TODO(dmazzoni): remove once http://crbug.com/113483 is fixed.
   void TrackScrollingObject(BrowserAccessibilityWin* node);
 
+  // Return a pointer to the object corresponding to the given windows-specific
+  // unique id, does not make a new reference.
+  BrowserAccessibilityWin* GetFromUniqueIdWin(LONG unique_id_win);
+
  private:
   // The closest ancestor HWND.
   HWND parent_hwnd_;
@@ -60,6 +67,10 @@ class CONTENT_EXPORT BrowserAccessibilityManagerWin
   // TODO(dmazzoni): remove once http://crbug.com/113483 is fixed.
   BrowserAccessibilityWin* tracked_scroll_object_;
 
+  // A mapping from the Windows-specific unique IDs (unique within the
+  // browser process) to renderer ids within this page.
+  base::hash_map<long, int32> unique_id_to_renderer_id_map_;
+
   DISALLOW_COPY_AND_ASSIGN(BrowserAccessibilityManagerWin);
 };