Reduce candidate window flickering.

chrome/browser/chromeos/input_method/candidate_window_view.h

 // 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_INPUT_METHOD_CANDIDATE_WINDOW_VIEW_H_
 #define CHROME_BROWSER_CHROMEOS_INPUT_METHOD_CANDIDATE_WINDOW_VIEW_H_
 
 #include "base/gtest_prod_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/timer.h"
@@ skipping 189 matching lines @@
   // 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_;
 
+  // True if the candidate window should be shonw on the upper side of
+  // composition text.
+  bool should_show_upper_side_;
+
   // True if the candidate window was open.  This is used to determine when to
   // send OnCandidateWindowOpened and OnCandidateWindowClosed events.
   bool was_candidate_window_open_;
 
   // This function judge whether the candidate window should be shown or not,
   // if should be, shows parent_frame and if not, hides parent_frame.
   void UpdateParentArea();
 
   DISALLOW_COPY_AND_ASSIGN(CandidateWindowView);
 };
@@ skipping 49 matching lines @@
     const mozc::commands::InformationList* old_usages,
     const mozc::commands::InformationList* new_usages);
 
   DISALLOW_COPY_AND_ASSIGN(InfolistWindowView);
 };
 
 }  // namespace input_method
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_INPUT_METHOD_CANDIDATE_WINDOW_VIEW_H_