Revert "Remove spellcheck feedback."

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_marker.h"
 #include "chrome/common/spellcheck_result.h"
 #include "ipc/ipc_message_macros.h"
@@ skipping 37 matching lines @@
 // Words have been added and removed in the custom dictionary; update the local
 // custom word list.
 IPC_MESSAGE_CONTROL2(SpellCheckMsg_CustomDictionaryChanged,
                      std::vector<std::string> /* words_added */,
                      std::vector<std::string> /* words_removed */)
 
 // Toggle the auto spell correct functionality.
 IPC_MESSAGE_CONTROL1(SpellCheckMsg_EnableAutoSpellCorrect,
                      bool /* enable */)
 
+// Request a list of all document markers in the renderer for spelling service
+// feedback.
+IPC_MESSAGE_CONTROL0(SpellCheckMsg_RequestDocumentMarkers)
+
+// Send a list of document markers in the renderer to the spelling service
+// feedback sender.
+IPC_MESSAGE_CONTROL1(SpellCheckHostMsg_RespondDocumentMarkers,
+                     std::vector<uint32> /* document marker identifiers */)
+
 #if !defined(OS_MACOSX)
 // Sends text-check results from the Spelling service when the service finishes
 // checking text received 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 sentence.
 IPC_MESSAGE_ROUTED4(SpellCheckMsg_RespondSpellingService,
                     int             /* request identifier given by WebKit */,
                     bool            /* succeeded calling service */,
                     base::string16  /* sentence */,
                     std::vector<SpellCheckResult>)
@@ skipping 59 matching lines @@
 IPC_MESSAGE_CONTROL4(SpellCheckHostMsg_RequestTextCheck,
                      int /* route_id for response */,
                      int /* request identifier given by WebKit */,
                      base::string16 /* sentence */,
                      std::vector<SpellCheckMarker> /* markers */)
 
 IPC_MESSAGE_ROUTED2(SpellCheckHostMsg_ToggleSpellCheck,
                     bool /* enabled */,
                     bool /* checked */)
 #endif  // OS_MACOSX