Show the candidate window always on top.

chrome/browser/chromeos/input_method/candidate_window.cc

 // Copyright (c) 2011 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 "chrome/browser/chromeos/input_method/candidate_window.h"
 
 #include <algorithm>
 #include <string>
 #include <vector>
 
@@ skipping 1655 matching lines @@
   // initial connection change.
   ibus_ui_controller_->AddObserver(this);
   ibus_ui_controller_->Connect();
   return true;
 }
 
 void CandidateWindowController::Impl::CreateView() {
   // Create a non-decorated frame.
   frame_.reset(new views::Widget);
   // The size is initially zero.
-  frame_->Init(
-      views::Widget::InitParams(views::Widget::InitParams::TYPE_POPUP));
+  views::Widget::InitParams params(views::Widget::InitParams::TYPE_POPUP);
+  // Show the candidate window always on top
+  params.keep_on_top = true;
+  frame_->Init(params);
 
   // Create the candidate window.
   candidate_window_ = new CandidateWindowView(frame_.get());
   candidate_window_->Init();
   candidate_window_->AddObserver(this);
 
   frame_->SetContentsView(candidate_window_);
 
 
   // Create the infolist window.
   infolist_frame_.reset(new views::Widget);
-  infolist_frame_->Init(
-      views::Widget::InitParams(views::Widget::InitParams::TYPE_POPUP));
+  infolist_frame_->Init(params);
   infolist_window_ = new InfolistWindowView(
       infolist_frame_.get(), frame_.get());
   infolist_window_->Init();
   infolist_frame_->SetContentsView(infolist_window_);
 }
 
 CandidateWindowController::Impl::Impl()
     : ibus_ui_controller_(IBusUiController::Create()),
       candidate_window_(NULL),
       infolist_window_(NULL) {
@@ skipping 120 matching lines @@
 CandidateWindowController::~CandidateWindowController() {
   delete impl_;
 }
 
 bool CandidateWindowController::Init() {
   return impl_->Init();
 }
 
 }  // namespace input_method
 }  // namespace chromeos