Convert utility process extension Unpacker IPC to mojo

extensions/common/extension_utility_messages.h

 // Copyright 2014 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.
 
 // Multiply-included message file, so no include guard.
 
 #include <string>
-#include <tuple>
 
+#include "extensions/common/manifest.h"
 #include "extensions/common/update_manifest.h"
 #include "ipc/ipc_message_macros.h"
-#include "third_party/skia/include/core/SkBitmap.h"
-#include "ui/gfx/ipc/skia/gfx_skia_param_traits.h"
+#include "ipc/param_traits_macros.h"
 #include "url/ipc/url_param_traits.h"
 
 #define IPC_MESSAGE_START ExtensionUtilityMsgStart
 
-#ifndef EXTENSIONS_COMMON_EXTENSION_UTILITY_MESSAGES_H_
-#define EXTENSIONS_COMMON_EXTENSION_UTILITY_MESSAGES_H_
-
-using DecodedImages = std::vector<std::tuple<SkBitmap, base::FilePath>>;
-
-#endif  //  EXTENSIONS_COMMON_EXTENSION_UTILITY_MESSAGES_H_
+IPC_ENUM_TRAITS_MIN_MAX_VALUE(extensions::Manifest::Location,
+                              extensions::Manifest::INVALID_LOCATION,
+                              extensions::Manifest::NUM_LOCATIONS)

[dcheng, 2017/03/10 02:51:04]

Also, this should be NUM_LOCATIONS - 1, since NUM_LOCATIONS is a sentinel, not
an actual valid enum value.

For IPC, we usually call this MAX and assign it the last valid value in the
enum, but I guess that's not easy to do here, since NUM_LOCATIONS is used for
UMA. Oh well.

 
 IPC_STRUCT_TRAITS_BEGIN(UpdateManifest::Result)
   IPC_STRUCT_TRAITS_MEMBER(extension_id)
   IPC_STRUCT_TRAITS_MEMBER(version)
   IPC_STRUCT_TRAITS_MEMBER(browser_min_version)
   IPC_STRUCT_TRAITS_MEMBER(package_hash)
   IPC_STRUCT_TRAITS_MEMBER(crx_url)
 IPC_STRUCT_TRAITS_END()
 
 IPC_STRUCT_TRAITS_BEGIN(UpdateManifest::Results)
   IPC_STRUCT_TRAITS_MEMBER(list)
   IPC_STRUCT_TRAITS_MEMBER(daystart_elapsed_seconds)
 IPC_STRUCT_TRAITS_END()
 
 //------------------------------------------------------------------------------
 // Utility process messages:
 // These are messages from the browser to the utility process.
 
 // Tell the utility process to parse the given xml document.
 IPC_MESSAGE_CONTROL1(ExtensionUtilityMsg_ParseUpdateManifest,
                      std::string /* xml document contents */)
 
-// Tell the utility process to unzip the zipfile at a given path into a
-// directory at the second given path.
-IPC_MESSAGE_CONTROL2(ExtensionUtilityMsg_UnzipToDir,
-                     base::FilePath /* zip_file */,
-                     base::FilePath /* dir */)
-
-// Tells the utility process to validate and sanitize the extension in a
-// directory.
-IPC_MESSAGE_CONTROL4(ExtensionUtilityMsg_UnpackExtension,
-                     base::FilePath /* directory_path */,
-                     std::string /* extension_id */,
-                     int /* Manifest::Location */,
-                     int /* InitFromValue flags */)
-
 //------------------------------------------------------------------------------
 // Utility process host messages:
 // These are messages from the utility process to the browser.
 
 // Reply when the utility process has succeeded in parsing an update manifest
 // xml document.
 IPC_MESSAGE_CONTROL1(ExtensionUtilityHostMsg_ParseUpdateManifest_Succeeded,
                      UpdateManifest::Results /* updates */)
 
 // Reply when an error occurred parsing the update manifest. |error_message|
 // is a description of what went wrong suitable for logging.
 IPC_MESSAGE_CONTROL1(ExtensionUtilityHostMsg_ParseUpdateManifest_Failed,
                      std::string /* error_message, if any */)
-
-// Reply when the utility process is done unzipping a file. |unpacked_path|
-// is the directory which contains the unzipped contents.
-IPC_MESSAGE_CONTROL1(ExtensionUtilityHostMsg_UnzipToDir_Succeeded,
-                     base::FilePath /* unpacked_path */)
-
-// Reply when the utility process failed to unzip a file. |error| contains
-// an error string to be reported to the user.
-IPC_MESSAGE_CONTROL1(ExtensionUtilityHostMsg_UnzipToDir_Failed,
-                     std::string /* error */)
-
-// Reply when the utility process is done unpacking an extension.  |manifest|
-// is the parsed manifest.json file.
-// The unpacker should also have written out files containing the decoded
-// images and message catalogs from the extension. The data is written into a
-// DecodedImages struct into a file named kDecodedImagesFilename in the
-// directory that was passed in. This is done because the data is too large to
-// pass over IPC.
-IPC_MESSAGE_CONTROL1(ExtensionUtilityHostMsg_UnpackExtension_Succeeded,
-                     base::DictionaryValue /* manifest */)
-
-// Reply when the utility process has failed while unpacking an extension.
-// |error_message| is a user-displayable explanation of what went wrong.
-IPC_MESSAGE_CONTROL1(ExtensionUtilityHostMsg_UnpackExtension_Failed,
-                     base::string16 /* error_message, if any */)