Move KeyIdentifier->KeyEvent conversion to src/ui/.

ui/base/events/key_identifier_conversion.h

Index: ui/base/events/key_identifier_conversion.h
diff --git a/chrome/browser/extensions/key_identifier_conversion_views.h b/ui/base/events/key_identifier_conversion.h
similarity index 55%
rename from chrome/browser/extensions/key_identifier_conversion_views.h
rename to ui/base/events/key_identifier_conversion.h
index d13f47a5d89bfeb9d3dcbc750e150e6a77df0e19..9e708ad2bd43aa8d7735cda63f76b68e303941ac 100644
--- a/chrome/browser/extensions/key_identifier_conversion_views.h
+++ b/ui/base/events/key_identifier_conversion.h
@@ -2,21 +2,24 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CHROME_BROWSER_EXTENSIONS_KEY_IDENTIFIER_CONVERSION_VIEWS_H_
-#define CHROME_BROWSER_EXTENSIONS_KEY_IDENTIFIER_CONVERSION_VIEWS_H_
-
-#include "ui/base/keycodes/keyboard_codes.h"
+#ifndef UI_BASE_EVENTS_KEY_IDENTIFIER_CONVERSION_H_
+#define UI_BASE_EVENTS_KEY_IDENTIFIER_CONVERSION_H_
 
 #include <string>
 
+#include "ui/base/ui_export.h"
+
 namespace ui {
+
 class KeyEvent;
-}
 
 // Convert a KeyIdentifer (see Section 6.3.3 here:
 // http://www.w3.org/TR/DOM-Level-3-Events/#keyset-keyidentifiers)
 // to a ui::KeyEvent.
-const ui::KeyEvent& KeyEventFromKeyIdentifier(
+// This should only be called from the UI thread.
+UI_EXPORT const ui::KeyEvent& KeyEventFromKeyIdentifier(
     const std::string& key_identifier);
 
-#endif  // CHROME_BROWSER_EXTENSIONS_KEY_IDENTIFIER_CONVERSION_VIEWS_H_
+}  // namespace ui
+
+#endif  // UI_BASE_EVENTS_KEY_IDENTIFIER_CONVERSION_H_