MacViews/a11y: Allow accessibility clients to update the selected text.

chrome/browser/ui/views/omnibox/omnibox_view_views.h

Index: chrome/browser/ui/views/omnibox/omnibox_view_views.h
diff --git a/chrome/browser/ui/views/omnibox/omnibox_view_views.h b/chrome/browser/ui/views/omnibox/omnibox_view_views.h
index 2f45573895bc57c1b8bd62c20f7a5c57fcd8ad73..0d1c70e51e008b00df782950942493a5a9494328 100644
--- a/chrome/browser/ui/views/omnibox/omnibox_view_views.h
+++ b/chrome/browser/ui/views/omnibox/omnibox_view_views.h
@@ -127,8 +127,11 @@ class OmniboxViewViews
 
   // 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 base::string16& new_value);
+  // don't normally use this). If |clear_first| is true, this replaces all text
+  // with the |new_value|. Otherwise this inserts |new_value| at the cursor
+  // position, replacing any selected text. The cursor is placed at the end of
+  // |new_value|.
+  void AccessibilitySetValue(const base::string16& new_value, bool clear_first);
 
   // Updates |security_level_| based on the toolbar model's current value.
   void UpdateSecurityLevel();