Remove candidate show/hide/update related code

content/common/view_messages.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.
 
 // IPC messages for page rendering.
 // Multiply-included message file, hence no include guard.
 
 #include "base/memory/shared_memory.h"
 #include "base/process/process.h"
 #include "base/strings/string16.h"
@@ skipping 741 matching lines @@
 //   Indicates if an input method is active in the browser process.
 //   The possible actions when a renderer process receives this message are
 //   listed below:
 //     Value Action
 //     true  Start sending IPC message ViewHostMsg_ImeUpdateTextInputState
 //           to notify the input method status of the focused edit control.
 //     false Stop sending IPC message ViewHostMsg_ImeUpdateTextInputState.
 IPC_MESSAGE_ROUTED1(ViewMsg_SetInputMethodActive,
                     bool /* is_active */)
 
-// IME API oncandidatewindow* events for InputMethodContext.
-IPC_MESSAGE_ROUTED0(ViewMsg_CandidateWindowShown)
-IPC_MESSAGE_ROUTED0(ViewMsg_CandidateWindowUpdated)
-IPC_MESSAGE_ROUTED0(ViewMsg_CandidateWindowHidden)
-
 // Used to notify the render-view that we have received a target URL. Used
 // to prevent target URLs spamming the browser.
 IPC_MESSAGE_ROUTED0(ViewMsg_UpdateTargetURL_ACK)
 
 IPC_MESSAGE_ROUTED1(ViewMsg_RunFileChooserResponse,
                     std::vector<content::FileChooserFileInfo>)
 
 // Provides the results of directory enumeration.
 IPC_MESSAGE_ROUTED2(ViewMsg_EnumerateDirectoryResponse,
                     int /* request_id */,
@@ skipping 841 matching lines @@
 // cached by the OS. Please see RenderMessageFilter::OnPreCacheFontCharacters
 // for details.
 IPC_SYNC_MESSAGE_CONTROL2_0(ViewHostMsg_PreCacheFontCharacters,
                             LOGFONT /* font_data */,
                             base::string16 /* characters */)
 #endif
 
 // Adding a new message? Stick to the sort order above: first platform
 // independent ViewMsg, then ifdefs for platform specific ViewMsg, then platform
 // independent ViewHostMsg, then ifdefs for platform specific ViewHostMsg.