Convert utility process CheckMediaFile IPC to mojo

chrome/common/extensions/chrome_utility_extensions_messages.h

Index: chrome/common/extensions/chrome_utility_extensions_messages.h
diff --git a/chrome/common/extensions/chrome_utility_extensions_messages.h b/chrome/common/extensions/chrome_utility_extensions_messages.h
index 51ceb4bd6e495975fe05916f2941f687d3740367..2510597ccf94be3f135639a88386c2b7df943d80 100644
--- a/chrome/common/extensions/chrome_utility_extensions_messages.h
+++ b/chrome/common/extensions/chrome_utility_extensions_messages.h
@@ -85,14 +85,6 @@ IPC_MESSAGE_CONTROL2(ChromeUtilityMsg_IndexPicasaAlbumsContents,
                      std::vector<picasa::FolderINIContents> /* folders_inis */)
 #endif  // defined(OS_WIN) || defined(OS_MACOSX)
 
-// Tell the utility process to attempt to validate the passed media file. The
-// file will undergo basic sanity checks and will be decoded for up to
-// |milliseconds_of_decoding| wall clock time. It is still not safe to decode
-// the file in the browser process after this check.
-IPC_MESSAGE_CONTROL2(ChromeUtilityMsg_CheckMediaFile,
-                     int64_t /* milliseconds_of_decoding */,
-                     IPC::PlatformFileForTransit /* Media file to parse */)
-
 IPC_MESSAGE_CONTROL2(ChromeUtilityMsg_RequestBlobBytes_Finished,
                      int64_t /* request_id */,
                      std::string /* bytes */)
@@ -145,11 +137,6 @@ IPC_MESSAGE_CONTROL1(ChromeUtilityHostMsg_IndexPicasaAlbumsContents_Finished,
                      picasa::AlbumImagesMap /* albums_images */)
 #endif  // defined(OS_WIN) || defined(OS_MACOSX)
 
-// Reply after checking the passed media file. A true result indicates that
-// the file appears to be a well formed media file.
-IPC_MESSAGE_CONTROL1(ChromeUtilityHostMsg_CheckMediaFile_Finished,
-                     bool /* passed_checks */)
-
 IPC_MESSAGE_CONTROL3(ChromeUtilityHostMsg_RequestBlobBytes,
                      int64_t /* request_id */,
                      int64_t /* start_byte */,