[KeyboardEvent] Use DOM |code| rather than Windows-based key code

ui/events/event_utils.cc

 // Copyright (c) 2012 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/event_utils.h"
 
 #include <vector>
 
 #include "ui/events/event.h"
 #include "ui/gfx/display.h"
@@ skipping 45 matching lines @@
     case ET_TOUCH_CANCELLED:
       event.reset(new TouchEvent(native_event));
       break;
 
     default:
       break;
   }
   return event.Pass();
 }
 
-// From third_party/WebKit/Source/web/gtk/WebInputEventFactory.cpp:
-base::char16 GetControlCharacterForKeycode(int windows_key_code, bool shift) {
-  if (windows_key_code >= ui::VKEY_A &&
-    windows_key_code <= ui::VKEY_Z) {
-    // ctrl-A ~ ctrl-Z map to \x01 ~ \x1A
-    return windows_key_code - ui::VKEY_A + 1;
-  }
-  if (shift) {
-    // following graphics chars require shift key to input.
-    switch (windows_key_code) {
-      // ctrl-@ maps to \x00 (Null byte)
-      case ui::VKEY_2:
-        return 0;
-      // ctrl-^ maps to \x1E (Record separator, Information separator two)
-      case ui::VKEY_6:
-        return 0x1E;
-      // ctrl-_ maps to \x1F (Unit separator, Information separator one)
-      case ui::VKEY_OEM_MINUS:
-        return 0x1F;
-      // Returns 0 for all other keys to avoid inputting unexpected chars.
-      default:
-        break;
-    }
-  } else {
-    switch (windows_key_code) {
-      // ctrl-[ maps to \x1B (Escape)
-      case ui::VKEY_OEM_4:
-        return 0x1B;
-      // ctrl-\ maps to \x1C (File separator, Information separator four)
-      case ui::VKEY_OEM_5:
-        return 0x1C;
-      // ctrl-] maps to \x1D (Group separator, Information separator three)
-      case ui::VKEY_OEM_6:
-        return 0x1D;
-      // ctrl-Enter maps to \x0A (Line feed)
-      case ui::VKEY_RETURN:
-        return 0x0A;
-      // Returns 0 for all other keys to avoid inputting unexpected chars.
-      default:
-        break;
-    }
-  }
-  return 0;
-}
-
 int RegisterCustomEventType() {
   return ++g_custom_event_types;
 }
 
 base::TimeDelta EventTimeForNow() {
   return base::TimeDelta::FromInternalValue(
       base::TimeTicks::Now().ToInternalValue());
 }
 
 bool ShouldDefaultToNaturalScroll() {
   return GetInternalDisplayTouchSupport() ==
       gfx::Display::TOUCH_SUPPORT_AVAILABLE;
 }
 
 gfx::Display::TouchSupport GetInternalDisplayTouchSupport() {
   gfx::Screen* screen = gfx::Screen::GetScreenByType(gfx::SCREEN_TYPE_NATIVE);
   // No screen in some unit tests.
   if (!screen)
     return gfx::Display::TOUCH_SUPPORT_UNKNOWN;
   const std::vector<gfx::Display>& displays = screen->GetAllDisplays();
   for (std::vector<gfx::Display>::const_iterator it = displays.begin();
        it != displays.end(); ++it) {
     if (it->IsInternal())
       return it->touch_support();
   }
   return gfx::Display::TOUCH_SUPPORT_UNAVAILABLE;
 }
 
 }  // namespace ui