Differential updates for components.

chrome/installer/util/util_constants.cc

 // 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.
 
 #include "chrome/installer/util/util_constants.h"
 
 namespace installer {
 
 namespace switches {
 
@@ skipping 178 matching lines @@
 // User toast experiment switch from system context to user context.
 const char kSystemLevelToast[] = "system-level-toast";
 
 // The group this experiment belongs to.
 const char kExperimentGroup[] = "experiment-group";
 
 // A handle value of the key to write the results of the toast experiment
 // to. See DuplicateGoogleUpdateSystemClientKey for details.
 const char kToastResultsKey[] = "toast-results-key";
 
+// Applies a binary patch to a file. The input, patch, and the output file are
+// specified as command line arguments following the --patch switch.
+// Ex: --patch=courgette --input_file='input' --patch_file='patch'
+//        --output_file='output'
+const char kPatch[] = "patch";
+const char kInputFile[] = "input-file";
+const char kPatchFile[] = "patch-file";
+const char kOutputFile[] = "output-file";
+
 }  // namespace switches
 
 // The Active Setup executable will be an identical copy of setup.exe; this is
 // necessary because Windows' installer detection heuristics (which include
 // things like process name being "setup.exe") will otherwise force elevation
 // for non-admin users when setup.exe is launched. This is mitigated by adding
 // requestedExecutionLevel="asInvoker" to setup.exe's manifest on Vista+, but
 // there is no such manifest entry on Windows XP (which results in
 // crbug.com/166473).
 // TODO(gab): Rename setup.exe itself altogether and use the same binary for
@@ skipping 45 matching lines @@
 
 // Chrome channel display names.
 const wchar_t kChromeChannelUnknown[] = L"unknown";
 const wchar_t kChromeChannelCanary[] = L"canary";
 const wchar_t kChromeChannelDev[] = L"dev";
 const wchar_t kChromeChannelBeta[] = L"beta";
 const wchar_t kChromeChannelStable[] = L"";
 
 const size_t kMaxAppModelIdLength = 64U;
 
+const char kCourgette[] = "courgette";
+const char kBsdiff[] = "bsdiff";
+
 }  // namespace installer