Add java_cpp_template template

build/config/android/internal_rules.gni

Index: build/config/android/internal_rules.gni
diff --git a/build/config/android/internal_rules.gni b/build/config/android/internal_rules.gni
new file mode 100644
index 0000000000000000000000000000000000000000..3bcf4930caeeab8bf390fa63b7755bfb8e563706
--- /dev/null
+++ b/build/config/android/internal_rules.gni
@@ -0,0 +1,25 @@
+
+# Creates a zip archive of the inputs.
+# If base_dir is provided, the archive paths will be relative to it.
+template("_zip") {
+  assert(defined(invoker.inputs))
+  assert(defined(invoker.output))
+
+  rebase_inputs = rebase_path(invoker.inputs)
+  rebase_output = rebase_path(invoker.output)
+  action(target_name) {
+    script = "//build/android/gn/zip.py"
+    source_prereqs = invoker.inputs
+    outputs = [invoker.output]
+    args = [
+      "--inputs=$rebase_inputs",
+      "--output=$rebase_output",
+    ]
+    if (defined(invoker.base_dir)) {
+      args += [
+        "--base-dir", rebase_path(invoker.base_dir)
+      ]
+    }
+  }
+}
+