Convert Spellcheck host MessageFilter IPC to mojo

components/spellcheck/common/spellcheck_messages.h

Index: components/spellcheck/common/spellcheck_messages.h
diff --git a/components/spellcheck/common/spellcheck_messages.h b/components/spellcheck/common/spellcheck_messages.h
index e8e83a8f026ef7db0716426cd71ee50d78ed851c..fbb69e48b851f129e2016533bc4911ceed4dd715 100644
--- a/components/spellcheck/common/spellcheck_messages.h
+++ b/components/spellcheck/common/spellcheck_messages.h
@@ -12,7 +12,7 @@
 #include "ipc/ipc_message_macros.h"
 
 #if !BUILDFLAG(ENABLE_SPELLCHECK)
-#error "Spellcheck should be enabled"
+#error "Spellcheck should be enabled."
 #endif
 
 #define IPC_MESSAGE_START SpellCheckMsgStart
@@ -28,18 +28,6 @@ IPC_STRUCT_TRAITS_END()
 
 // Messages sent from the browser to the renderer.
 
-#if !BUILDFLAG(USE_BROWSER_SPELLCHECKER)
-// 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>)
-#endif
-
 #if BUILDFLAG(USE_BROWSER_SPELLCHECKER)
 // Sends when NSSpellChecker finishes checking text received by a preceding
 // SpellCheckHostMsg_RequestTextCheck message.
@@ -59,26 +47,6 @@ IPC_MESSAGE_ROUTED1(SpellCheckMsg_ToggleSpellPanel, bool)
 
 // Messages sent from the renderer to the browser.
 
-// The renderer has tried to spell check a word, but couldn't because no
-// dictionary was available to load. Request that the browser find an
-// appropriate dictionary and return it.
-IPC_MESSAGE_CONTROL0(SpellCheckHostMsg_RequestDictionary)
-
-// Tracks spell checking occurrence to collect histogram.
-IPC_MESSAGE_ROUTED2(SpellCheckHostMsg_NotifyChecked,
-                    base::string16 /* word */,
-                    bool /* true if checked word is misspelled */)
-
-#if !BUILDFLAG(USE_BROWSER_SPELLCHECKER)
-// Asks the Spelling service to check text. When the service finishes checking
-// the input text, it sends a SpellingCheckMsg_RespondSpellingService with
-// text-check results.
-IPC_MESSAGE_CONTROL3(SpellCheckHostMsg_CallSpellingService,
-                     int /* route_id for response */,
-                     int /* request identifier given by WebKit */,
-                     base::string16 /* sentence */)
-#endif
-
 #if BUILDFLAG(USE_BROWSER_SPELLCHECKER)
 // TODO(groby): This needs to originate from SpellcheckProvider.
 IPC_SYNC_MESSAGE_CONTROL2_1(SpellCheckHostMsg_CheckSpelling,