Rename KEY_ constants to avoid conflict with <linux/input.h>

ui/events/keycodes/keyboard_code_conversion.cc

Index: ui/events/keycodes/keyboard_code_conversion.cc
diff --git a/ui/events/keycodes/keyboard_code_conversion.cc b/ui/events/keycodes/keyboard_code_conversion.cc
index bad6e79d7f63e3b8c6e0d0a8514ece1647de17b7..f4d637b4e1534a7da1dc37a49e5d6be0d04a8993 100644
--- a/ui/events/keycodes/keyboard_code_conversion.cc
+++ b/ui/events/keycodes/keyboard_code_conversion.cc
@@ -69,19 +69,19 @@ bool DomCodeToControlCharacter(DomCode dom_code,
     return false;
 
   int code = static_cast<int>(dom_code);
-  const int kKeyA = static_cast<int>(DomCode::KEY_A);
+  const int kKeyA = static_cast<int>(DomCode::US_A);
   // Control-A - Control-Z map to 0x01 - 0x1A.
-  if (code >= kKeyA && code <= static_cast<int>(DomCode::KEY_Z)) {
+  if (code >= kKeyA && code <= static_cast<int>(DomCode::US_Z)) {
     *dom_key = DomKey::FromCharacter(code - kKeyA + 1);
     *key_code = static_cast<KeyboardCode>(code - kKeyA + VKEY_A);
     switch (dom_code) {
-      case DomCode::KEY_H:
+      case DomCode::US_H:
         *key_code = VKEY_BACK;
         break;
-      case DomCode::KEY_I:
+      case DomCode::US_I:
         *key_code = VKEY_TAB;
         break;
-      case DomCode::KEY_M:
+      case DomCode::US_M:
         *key_code = VKEY_RETURN;
         break;
       default: