Use DOM- rather than Windows-based key code for non-layout cases.

ui/events/keycodes/dom4/keycode_converter.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ui/events/keycodes/dom4/keycode_converter.h"
 
+#include "base/logging.h"
 #include "ui/events/keycodes/dom3/dom_code.h"
 #include "ui/events/keycodes/dom3/dom_key.h"
 
 namespace ui {
 
 namespace {
 
 // Table of USB codes (equivalent to DomCode values), native scan codes,
 // and DOM Level 3 |code| strings.
 #if defined(OS_WIN)
@@ skipping 94 matching lines @@
     return InvalidNativeKeycode();
   for (size_t i = 0; i < kKeycodeMapEntries; ++i) {
     if (usb_keycode_map[i].usb_keycode == static_cast<uint32_t>(code))
       return usb_keycode_map[i].native_keycode;
   }
   return InvalidNativeKeycode();
 }
 
 // static
 DomCode KeycodeConverter::CodeStringToDomCode(const char* code) {
-  if (!code || !*code)
+  if (!code || !*code) {
+    LOG(WARNING) << "empty code string";
     return DomCode::NONE;
+  }
   for (size_t i = 0; i < kKeycodeMapEntries; ++i) {
     if (usb_keycode_map[i].code &&
         strcmp(usb_keycode_map[i].code, code) == 0) {
       return static_cast<DomCode>(usb_keycode_map[i].usb_keycode);
     }
   }
+  LOG(WARNING) << "unrecognized code string '" << code << "'";
   return DomCode::NONE;
 }
 
 // static
 const char* KeycodeConverter::DomCodeToCodeString(DomCode dom_code) {
   return UsbKeycodeToCode(static_cast<uint32_t>(dom_code));
 }
 
 // static
 DomKey KeycodeConverter::KeyStringToDomKey(const char* key) {
@@ skipping 81 matching lines @@
   for (size_t i = 0; i < kKeycodeMapEntries; ++i) {
     if (usb_keycode_map[i].code &&
         strcmp(usb_keycode_map[i].code, code) == 0) {
       return usb_keycode_map[i].usb_keycode;
     }
   }
   return InvalidUsbKeycode();
 }
 
 }  // namespace ui