Implement put_accvalue for textfields and location bar.

ui/views/controls/textfield/textfield.h

Index: ui/views/controls/textfield/textfield.h
diff --git a/ui/views/controls/textfield/textfield.h b/ui/views/controls/textfield/textfield.h
index 4b453cb48a32a5ff59ff05dd7c9aef00cf255c1a..565ab554766edcaac173835a31b552b7f99039ea 100644
--- a/ui/views/controls/textfield/textfield.h
+++ b/ui/views/controls/textfield/textfield.h
@@ -285,6 +285,11 @@ class VIEWS_EXPORT Textfield : public View {
   // Returns the insets to the rectangle where text is actually painted.
   gfx::Insets GetTextInsets() const;
 
+  // Handles a request to change the value of this text field from software
+  // using an accessibility API (typically automation software, screen readers
+  // don't normally use this). Sets the value and clears the selection.
+  void AccessibilitySetValue(const string16& new_value);
+
   // This is the current listener for events from this Textfield.
   TextfieldController* controller_;