Add DomKey&DomCode to fabricated keydown event if exists

ui/base/ime/input_method_chromeos.cc

 // Copyright 2014 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/base/ime/input_method_chromeos.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <cstring>
@@ skipping 343 matching lines @@
     ignore_result(DispatchKeyEventPostIME(event));
 }
 
 void InputMethodChromeOS::ProcessFilteredKeyPressEvent(ui::KeyEvent* event) {
   if (NeedInsertChar()) {
     ignore_result(DispatchKeyEventPostIME(event));
     return;
   }
   ui::KeyEvent fabricated_event(ET_KEY_PRESSED,
                                 VKEY_PROCESSKEY,
-                                event->flags());
+                                event->code(),
+                                event->flags(),
+                                event->GetDomKey(),
+                                event->time_stamp());

[Shu Chen, 2016/03/11 16:24:53]

Can you please confirm whether the CJK input methods are impacted by this?

e.g. activate Chinese Pinyin input method, and type 'a' in an input field, the
JS 'keydown' event should have keyCode==229.

[chongz, 2016/03/11 21:17:26]

Sure, but can I have some help on how to include IME in my Chromium build? I'm
following the "simple chrome" guide
(http://www.chromium.org/chromium-os/how-tos-and-troubleshooting/building-chro...)
but it seems that there is no IME installed.

And in addition, may I know why would this CL affect IME? I'm only passing two
new attributes |DomCode| and |DomKey| but didn't change |keyCode|, and this
event will be sent to blink directly.

Please note that this CL is not related to http://crbug.com/593443.

[Shu Chen, 2016/03/14 01:32:17]

Ack. It makes sense.

   ignore_result(DispatchKeyEventPostIME(&fabricated_event));
   if (fabricated_event.stopped_propagation())
     event->StopPropagation();
 }
 
 void InputMethodChromeOS::ProcessUnfilteredKeyPressEvent(
     ui::KeyEvent* event) {
   const TextInputClient* prev_client = GetTextInputClient();
   ignore_result(DispatchKeyEventPostIME(event));
   if (event->stopped_propagation()) {
@@ skipping 258 matching lines @@
 bool InputMethodChromeOS::IsNonPasswordInputFieldFocused() {
   TextInputType type = GetTextInputType();
   return (type != TEXT_INPUT_TYPE_NONE) && (type != TEXT_INPUT_TYPE_PASSWORD);
 }
 
 bool InputMethodChromeOS::IsInputFieldFocused() {
   return GetTextInputType() != TEXT_INPUT_TYPE_NONE;
 }
 
 }  // namespace ui