[Spellcheck] Make sure context menu and actual spellcheck state are in sync.

chrome/common/spellcheck_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 spellcheck.
 // Multiply-included message file, hence no include guard.
 
 #include "chrome/common/spellcheck_result.h"
 #include "ipc/ipc_message_macros.h"
 #include "ipc/ipc_platform_file.h"
 
 
 #define IPC_MESSAGE_START SpellCheckMsgStart
 
 IPC_ENUM_TRAITS(SpellCheckResult::Type)
 
 IPC_STRUCT_TRAITS_BEGIN(SpellCheckResult)
   IPC_STRUCT_TRAITS_MEMBER(type)
   IPC_STRUCT_TRAITS_MEMBER(location)
   IPC_STRUCT_TRAITS_MEMBER(length)
   IPC_STRUCT_TRAITS_MEMBER(replacement)
 IPC_STRUCT_TRAITS_END()
 
 // Messages sent from the browser to the renderer.
 
-IPC_MESSAGE_ROUTED0(SpellCheckMsg_ToggleSpellCheck)
+IPC_MESSAGE_CONTROL1(SpellCheckMsg_EnableSpellCheck,
+                    bool)
 
 // Passes some initialization params to the renderer's spellchecker. This can
 // be called directly after startup or in (async) response to a
 // RequestDictionary ViewHost message.
 IPC_MESSAGE_CONTROL4(SpellCheckMsg_Init,
                      IPC::PlatformFileForTransit /* bdict_file */,
                      std::vector<std::string> /* custom_dict_words */,
                      std::string /* language */,
                      bool /* auto spell correct */)
 
 // A word has been added to the custom dictionary; update the local custom
 // word list.
 IPC_MESSAGE_CONTROL1(SpellCheckMsg_WordAdded,
                      std::string /* word */)
 
 // A word has been removed from the custom dictionary; update the local custom
 // word list.
 IPC_MESSAGE_CONTROL1(SpellCheckMsg_WordRemoved,
                      std::string /* word */)
 
 // Toggle the auto spell correct functionality.
 IPC_MESSAGE_CONTROL1(SpellCheckMsg_EnableAutoSpellCorrect,
                      bool /* enable */)
 
 #if !defined(OS_MACOSX)
 // Sends text-check results from the Spelling service when the service finishes
 // checking text reveived by a SpellCheckHostMsg_CallSpellingService message.
 // If the service is not available, the 4th parameter should be false and
-// the 5th parameter should contain the requested setence.
+// the 5th parameter should contain the requested sentence.
 IPC_MESSAGE_ROUTED5(SpellCheckMsg_RespondSpellingService,
                     int         /* request identifier given by WebKit */,
                     int         /* offset */,
                     bool        /* succeeded calling serivce */,
                     string16    /* sentence */,
                     std::vector<SpellCheckResult>)
 #endif
 
 #if defined(OS_MACOSX)
 // This message tells the renderer to advance to the next misspelling. It is
@@ skipping 59 matching lines @@
 
 IPC_MESSAGE_CONTROL3(SpellCheckHostMsg_RequestTextCheck,
                      int /* route_id for response */,
                      int /* request identifier given by WebKit */,
                      string16 /* sentence */)
 
 IPC_MESSAGE_ROUTED2(SpellCheckHostMsg_ToggleSpellCheck,
                     bool /* enabled */,
                     bool /* checked */)
 #endif  // OS_MACOSX