GN + Android: support standalone .dex.jar output of Android libraries.

build/config/android/rules.gni

 # 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.
 
 import("//base/android/linker/config.gni")
 import("//build/config/android/config.gni")
 import("//build/config/android/internal_rules.gni")
 import("//tools/grit/grit_rule.gni")
 import("//tools/relocation_packer/config.gni")
 
@@ skipping 797 matching lines @@
 #     ease the gyp->gn conversion and will be removed in the future.
 #
 #   chromium_code: If true, extra analysis warning/errors will be enabled.
 #   jar_excluded_patterns: List of patterns of .class files to exclude from the
 #     final jar.
 #
 #   proguard_preprocess: If true, proguard preprocessing will be run. This can
 #     be used to remove unwanted parts of the library.
 #   proguard_config: Path to the proguard config for preprocessing.
 #
+#   dex_path: If set, the resulting .dex.jar file will be placed under this
+#     path.
+#   standalone_dex_path: If set, a standalone .dex.jar containing the code from
+#     the library and all dependencies will be placed under this path.
+#
 #
 # Example
 #   android_library("foo_java") {
 #     java_files = [
 #       "android/org/chromium/foo/Foo.java",
 #       "android/org/chromium/foo/FooInterface.java",
 #       "android/org/chromium/foo/FooService.java",
 #     ]
 #     deps = [
 #       ":bar_java"
@@ skipping 15 matching lines @@
     if (defined(invoker.deps)) { deps = invoker.deps }
     if (defined(invoker.jar_excluded_patterns)) { jar_excluded_patterns = invoker.jar_excluded_patterns }
     if (defined(invoker.java_files)) { java_files = invoker.java_files }
     if (defined(invoker.proguard_config)) { proguard_config = invoker.proguard_config }
     if (defined(invoker.proguard_preprocess)) { proguard_preprocess = invoker.proguard_preprocess }
     if (defined(invoker.srcjar_deps)) { srcjar_deps = invoker.srcjar_deps }
     if (defined(invoker.srcjars)) { srcjars = invoker.srcjars }
     if (defined(invoker.testonly)) { testonly = invoker.testonly }
     if (defined(invoker.visibility)) { visibility = invoker.visibility }
     if (defined(invoker.dex_path)) { dex_path = invoker.dex_path }
+    if (defined(invoker.standalone_dex_path)) { standalone_dex_path = invoker.standalone_dex_path }
 
     supports_android = true
     requires_android = true
 
     if (!defined(jar_excluded_patterns)) { jar_excluded_patterns = [] }
     jar_excluded_patterns += [
       "*/R.class", "*/R##*.class",
       "*/Manifest.class", "*/Manifest##*.class",
     ]
   }
@@ skipping 273 matching lines @@
       ]
     }
   }
 
   final_deps += [":${_template_name}__final_dex"]
   dex("${_template_name}__final_dex") {
     deps = [ ":${_template_name}__java" ]
     sources = [ jar_path ]
     inputs = [ _build_config ]
     output = final_dex_path
-    dex_arg_key = "${_rebased_build_config}:apk_dex:dependency_dex_files"
+    dex_arg_key = "${_rebased_build_config}:final_dex:dependency_dex_files"
     args = [ "--inputs=@FileArg($dex_arg_key)" ]
   }
 
   if (_native_libs != []) {
     action("${_template_name}__prepare_native") {
       script = "//build/android/gyp/pack_arm_relocations.py"
       packed_libraries_dir = "$_native_libs_dir/$android_app_abi"
       depfile = "$target_gen_dir/$target_name.d"
       outputs = [
         depfile
@@ skipping 344 matching lines @@
 }
 
 # TODO(GYP): implement this.
 template("uiautomator_test") {
   if (defined(invoker.testonly)) { testonly = invoker.testonly }
   assert(target_name != "")
   assert(invoker.deps != [] || true)
   group(target_name) {
   }
 }