Refactor mac signing scripts for development workflow

chrome/installer/mac/sign_versioned_dir.sh.in

Index: chrome/installer/mac/sign_versioned_dir.sh.in
diff --git a/chrome/installer/mac/sign_versioned_dir.sh.in b/chrome/installer/mac/sign_versioned_dir.sh.in
index 2d03ee453af61ca71ca599ff4c36a9d83278d23f..5ac3eaa34281def52b5d46b88c0ea8485e2ce7db 100644
--- a/chrome/installer/mac/sign_versioned_dir.sh.in
+++ b/chrome/installer/mac/sign_versioned_dir.sh.in
@@ -23,6 +23,9 @@ export -n SHELLOPTS
 ME="$(basename "${0}")"
 readonly ME
 
+script_dir="$(dirname "${0}")"
+source "${script_dir}/variables.sh"
+
 codesign_display_and_verify() {
   path=${1}
   shift
@@ -33,14 +36,19 @@ codesign_display_and_verify() {
   codesign --verify --verbose=6 "${@}" "${path}"
 }
 
-if [[ ${#} -ne 3 ]]; then
-  echo "usage: ${ME} app_path codesign_keychain codesign_id" >& 2
+if [[ ${#} -ne 3 && ${#} -ne 4 ]]; then
+  echo "usage: ${ME} app_path codesign_keychain codesign_id [--development]" >& 2
   exit 1
 fi
 
 app_path="${1}"
 codesign_keychain="${2}"
 codesign_id="${3}"
+is_development=false
+
+if [[ ${#} == 4 && ${4} == "--development" ]]; then
+  is_development=true
+fi
 
 versioned_dir="${app_path}/Contents/Versions/@VERSION@"
 
@@ -57,17 +65,10 @@ helper_app="${versioned_dir}/@MAC_PRODUCT_NAME@ Helper.app"
 app_mode_loader_app="${framework}/Resources/app_mode_loader.app"
 app_mode_loader="${app_mode_loader_app}/Contents/MacOS/app_mode_loader"
 
-requirement_suffix="\
-and (certificate leaf = H\"85cee8254216185620ddc8851c7a9fc4dfe120ef\" or \
-certificate leaf = H\"c9a99324ca3fcb23dbcc36bd5fd4f9753305130a\") \
-"
-
-enforcement_flags_app="restrict"
-enforcement_flags="${enforcement_flags_app},library"
 
 codesign --sign "${codesign_id}" --keychain "${codesign_keychain}" \
     "${crashpad_handler}" \
-    --options "${enforcement_flags}" \
+    --options "${enforcement_flags_helpers}" \
     -r="designated => identifier \"crashpad_handler\" \
 ${requirement_suffix}"
 
@@ -81,7 +82,7 @@ cp "${app_mode_loader}" "${app_mode_loader_tmp}"
 codesign --sign "${codesign_id}" --keychain "${codesign_keychain}" \
     "${app_mode_loader_tmp}" \
     --identifier app_mode_loader \
-    --options "${enforcement_flags}" \
+    --options "${enforcement_flags_helpers}" \
     -r="designated => identifier \"app_mode_loader\" \
 ${requirement_suffix}"
 cp "${app_mode_loader_tmp}" "${app_mode_loader}"
@@ -89,11 +90,11 @@ rm -f "${app_mode_loader_tmp}"
 
 codesign --sign "${codesign_id}" --keychain "${codesign_keychain}" \
     "${notification_service}" \
-    --options "${enforcement_flags}" \
+    --options "${enforcement_flags_helpers}" \
     -r="designated => identifier \"com.google.Chrome.framework.AlertNotificationService\" \
 ${requirement_suffix}"
 
-# The framework is a dylib, so ${enforcement_flags} are meaningless.
+# The framework is a dylib, so ${enforcement_flags_helpers} are meaningless.
 codesign --sign "${codesign_id}" --keychain "${codesign_keychain}" \
     "${framework}" \
     -r="designated => identifier \"com.google.Chrome.framework\" \