Support mozc suggest window on ChromeOS.

chrome/browser/chromeos/input_method/candidate_window_view.h

 // 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_INPUT_METHOD_CANDIDATE_WINDOW_VIEW_H_
 #define CHROME_BROWSER_CHROMEOS_INPUT_METHOD_CANDIDATE_WINDOW_VIEW_H_
 
 #include "chrome/browser/chromeos/input_method/ibus_ui_controller.h"
 #include "ui/views/view.h"
 
@@ skipping 159 matching lines @@
   InformationTextArea* footer_area_;
 
   // Current columns width in |candidate_area_|.
   int previous_shortcut_column_width_;
   int previous_candidate_column_width_;
   int previous_annotation_column_width_;
 
   // The last cursor location.
   gfx::Rect cursor_location_;
 
+  // This location is used by suggestion window rendering which is mostly used
+  // by ibus-mozc. The suggestion window should be aligned with the composition
+  // text as opposed to the cursor. In case of ibus-mozc, suggestion window
+  // location is calculated by engine and it carried by update_lookup_table
+  // signal as additional information. This value is available when
+  // is_suggestion_window_available is true.
+  gfx::Rect suggestion_window_location_;
+
+  bool is_suggestion_window_location_available_;
+
   DISALLOW_COPY_AND_ASSIGN(CandidateWindowView);
 };
 
 }  // namespace input_method
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_INPUT_METHOD_CANDIDATE_WINDOW_VIEW_H_