Switch from jinja to mustache templates

chrome/android/webapk/shell_apk/BUILD.gn

Index: chrome/android/webapk/shell_apk/BUILD.gn
diff --git a/chrome/android/webapk/shell_apk/BUILD.gn b/chrome/android/webapk/shell_apk/BUILD.gn
index b7527621ff609864a8cedad7f256658865c104d0..9d61949c6423af93e91fc365dcf06a058ff04feb 100644
--- a/chrome/android/webapk/shell_apk/BUILD.gn
+++ b/chrome/android/webapk/shell_apk/BUILD.gn
@@ -3,6 +3,7 @@
 # found in the LICENSE file.
 
 import("//build/config/android/rules.gni")
+import("manifest_processor.gni")
 import("shell_apk_version.gni")
 
 declare_args() {
@@ -48,7 +49,7 @@ shell_apk_manifest = "$target_gen_dir/shell_apk_manifest/AndroidManifest.xml"
 shell_apk_manifest_javatests =
     "$target_gen_dir/shell_apk_manifest_javatests/AndroidManifest.xml"
 
-jinja_template("shell_apk_manifest") {
+manifest_processor_template("shell_apk_manifest") {
   input = "AndroidManifest.xml"
   output = shell_apk_manifest
 
@@ -75,7 +76,7 @@ jinja_template("shell_apk_manifest") {
 }
 
 # Manifest for instrumentation tests. Cannot be customized via GN args.
-jinja_template("shell_apk_manifest_javatests") {
+manifest_processor_template("shell_apk_manifest_javatests") {
   input = "AndroidManifest.xml"
   output = shell_apk_manifest_javatests