Fix Android accessibility for editable text fields

content/browser/accessibility/browser_accessibility.h

Index: content/browser/accessibility/browser_accessibility.h
diff --git a/content/browser/accessibility/browser_accessibility.h b/content/browser/accessibility/browser_accessibility.h
index f93eea125d9c696e8ebe8fb80648321256660a20..12307b8973b68629ec258a0cfd7a6ebd0c686d86 100644
--- a/content/browser/accessibility/browser_accessibility.h
+++ b/content/browser/accessibility/browser_accessibility.h
@@ -153,7 +153,7 @@ class CONTENT_EXPORT BrowserAccessibility {
 
   // This is to handle the cases such as ARIA textbox, where the value should
   // be calculated from the object's inner text.
-  base::string16 GetValue() const;
+  virtual base::string16 GetValue() const;
 
   // Searches in the given text and from the given offset until the start of
   // the next or previous word is found and returns its position.