Removing X11 native_event uses for key events.

ui/events/event.h

Index: ui/events/event.h
diff --git a/ui/events/event.h b/ui/events/event.h
index 6b8f95c5b15971d8835de724673b2976269bea67..ac147f2589fde4ae34457959cc8468ec405e5741 100644
--- a/ui/events/event.h
+++ b/ui/events/event.h
@@ -569,7 +569,7 @@ class EVENTS_EXPORT TouchEvent : public LocatedEvent {
 // -- character_ is a UTF-16 character value.
 // -- key_code_ is conflated with character_ by some code, because both
 //    arrive in the wParam field of a Windows event.
-// -- code_ is "".
+// -- code_ is the empty string.
 //
 class EVENTS_EXPORT KeyEvent : public Event {
  public:
@@ -612,6 +612,12 @@ class EVENTS_EXPORT KeyEvent : public Event {
   // events in an EventRewriter.
   void set_key_code(KeyboardCode key_code) { key_code_ = key_code; }
 
+  // Returns the same value as key_code(), except that located codes are
+  // returned in place of non-located ones (e.g. VKEY_LSHIFT or VKEY_RSHIFT
+  // instead of VKEY_SHIFT). This is a hybrid of semantic and physical
+  // for legacy DOM reasons.
+  KeyboardCode GetLocatedWindowsKeyboardCode() const;
+
   // Returns true for [Alt]+<num-pad digit> Unicode alt key codes used by Win.
   // TODO(msw): Additional work may be needed for analogues on other platforms.
   bool IsUnicodeKeyCode() const;
@@ -635,6 +641,9 @@ class EVENTS_EXPORT KeyEvent : public Event {
   void set_is_char(bool is_char) { is_char_ = is_char; }
 
  private:
+  // True if the key press originated from a 'right' key (VKEY_RSHIFT, etc.).
+  bool IsRightSideKey() const;
+
   KeyboardCode key_code_;
 
   // String of 'code' defined in DOM KeyboardEvent (e.g. 'KeyA', 'Space')
@@ -657,7 +666,7 @@ class EVENTS_EXPORT KeyEvent : public Event {
   // This value represents the text that the key event will insert to input
   // field. For key with modifier key, it may have specifial text.
   // e.g. CTRL+A has '\x01'.
-  base::char16 character_;
+  mutable base::char16 character_;
 
   static bool IsRepeated(const KeyEvent& event);