Revert of Use UtilityProcessHost to patch files.

chrome/common/chrome_utility_messages.h

Index: chrome/common/chrome_utility_messages.h
diff --git a/chrome/common/chrome_utility_messages.h b/chrome/common/chrome_utility_messages.h
index e1d367d8ba65eab0d6b966ab74ceba18bcf54902..2c2acbcb1b90f0fb0d20d9973bfbf6ae89491399 100644
--- a/chrome/common/chrome_utility_messages.h
+++ b/chrome/common/chrome_utility_messages.h
@@ -142,7 +142,7 @@
 // Utility process messages:
 // These are messages from the browser to the utility process.
 
-// Tells the utility process to unpack the given extension file in its
+// Tell the utility process to unpack the given extension file in its
 // directory and verify that it is valid.
 IPC_MESSAGE_CONTROL4(ChromeUtilityMsg_UnpackExtension,
                      base::FilePath /* extension_filename */,
@@ -204,22 +204,6 @@
 // sandbox. Returns result as printing::PrinterSemanticCapsAndDefaults.
 IPC_MESSAGE_CONTROL1(ChromeUtilityMsg_GetPrinterSemanticCapsAndDefaults,
                      std::string /* printer name */)
-
-// Tell the utility process to patch the given |input_file| using |patch_file|
-// and place the output in |output_file|. The patch should use the bsdiff
-// algorithm (Courgette's version).
-IPC_MESSAGE_CONTROL3(ChromeUtilityMsg_PatchFileBsdiff,
-                     base::FilePath /* input_file */,
-                     base::FilePath /* patch_file */,
-                     base::FilePath /* output_file */)
-
-// Tell the utility process to patch the given |input_file| using |patch_file|
-// and place the output in |output_file|. The patch should use the Courgette
-// algorithm.
-IPC_MESSAGE_CONTROL3(ChromeUtilityMsg_PatchFileCourgette,
-                     base::FilePath /* input_file */,
-                     base::FilePath /* patch_file */,
-                     base::FilePath /* output_file */)
 
 #if defined(OS_CHROMEOS)
 // Tell the utility process to create a zip file on the given list of files.
@@ -395,13 +379,6 @@
     printing::PrinterSemanticCapsAndDefaults)
 #endif
 
-// Reply when a file has been patched successfully.
-IPC_MESSAGE_CONTROL0(ChromeUtilityHostMsg_PatchFile_Succeeded)
-
-// Reply when patching a file failed.
-IPC_MESSAGE_CONTROL1(ChromeUtilityHostMsg_PatchFile_Failed,
-                     int /* error code */)
-
 // Reply when the utility process has failed to obtain the printer
 // capabilities and defaults.
 IPC_MESSAGE_CONTROL1(ChromeUtilityHostMsg_GetPrinterCapsAndDefaults_Failed,