Modify AccessibilityTreeFormatter to build up an internal representation of the tree

content/browser/accessibility/accessibility_tree_formatter_win.cc

Index: content/browser/accessibility/accessibility_tree_formatter_win.cc
diff --git a/content/browser/accessibility/accessibility_tree_formatter_win.cc b/content/browser/accessibility/accessibility_tree_formatter_win.cc
index 389c0e5cb8a77a5fb16445f175a951ab21638f2a..32ee6358e91886fe811d4286f3c6c823d7e4a84a 100644
--- a/content/browser/accessibility/accessibility_tree_formatter_win.cc
+++ b/content/browser/accessibility/accessibility_tree_formatter_win.cc
@@ -26,7 +26,7 @@ void AccessibilityTreeFormatter::Initialize() {
 }
 
 string16 AccessibilityTreeFormatter::ToString(
-    BrowserAccessibility* node, char* prefix) {
+    BrowserAccessibility* node, string16& indent) {

[dmazzoni, 2013/04/08 05:46:35]

string16& indent -> const string16& indent

   BrowserAccessibilityWin* acc_obj = node->ToBrowserAccessibilityWin();
 
   // Get the computed name.
@@ -156,7 +156,7 @@ string16 AccessibilityTreeFormatter::ToString(
     }
   }
 
-  return UTF8ToUTF16(prefix) + FinishLine() + ASCIIToUTF16("\n");
+  return indent + FinishLine() + ASCIIToUTF16("\n");
 }
 
 // static