chromeos: Don't fire candidate window open/close events for suggestion window.

chrome/browser/chromeos/input_method/input_method_manager.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_INPUT_METHOD_MANAGER_H_
 #define CHROME_BROWSER_CHROMEOS_INPUT_METHOD_INPUT_METHOD_MANAGER_H_
 #pragma once
 
 #include <map>
 #include <set>
@@ skipping 37 matching lines @@
         const InputMethodDescriptor& current_input_method,
         size_t num_active_input_methods) = 0;
 
     // Called when the list of properties is changed.
     virtual void PropertyListChanged(
         InputMethodManager* manager,
         const ImePropertyList& current_ime_properties) = 0;
   };
 
   // CandidateWindowObserver is notified of events related to the candidate
-  // window.  These events won't occur when the virtual keyboard is used,
-  // since it controls its own candidate window.
+  // window.  The "suggestion window" used by IMEs such as ibus-mozc does not
+  // count as the candidate window (this may change if we later want suggestion
+  // window events as well).  These events also won't occur when the virtual
+  // keyboard is used, since it controls its own candidate window.
   class CandidateWindowObserver {
    public:
     virtual ~CandidateWindowObserver() {}
 
     // Called when the candidate window is opened.
     virtual void CandidateWindowOpened(InputMethodManager* manager) = 0;
 
     // Called when the candidate window is closed.
     virtual void CandidateWindowClosed(InputMethodManager* manager) = 0;
   };
@@ skipping 193 matching lines @@
   virtual InputMethodDescriptor previous_input_method() const = 0;
   virtual InputMethodDescriptor current_input_method() const = 0;
 
   virtual const ImePropertyList& current_ime_properties() const = 0;
 };
 
 }  // namespace input_method
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_INPUT_METHOD_INPUT_METHOD_MANAGER_H_