Android: Add java files from android_apk targets

build/config/android/rules.gni

Index: build/config/android/rules.gni
diff --git a/build/config/android/rules.gni b/build/config/android/rules.gni
index 0f189143392cd88184e3ec9f76ac8db0402112d2..dd38fbce643f77f9d0942a972a56b1caffe76286 100644
--- a/build/config/android/rules.gni
+++ b/build/config/android/rules.gni
@@ -1433,6 +1433,9 @@ if (enable_java_templates) {
     _lib_dex_path = "$base_path.dex.jar"
     _rebased_lib_dex_path = rebase_path(_lib_dex_path, root_build_dir)
     _template_name = target_name
+    if (defined(invoker.java_files)) {
+      java_sources_file = "$base_path.sources"

[agrieve, 2016/12/06 20:25:59]

nit: Please make this _java_sources_file and explicitly pass it to
write_build_config and java_libarary_impl(). Otherwise it's really hard to
figure out the data flow.

[Peter Wen, 2016/12/06 22:05:45]

Done

+    }
 
     enable_multidex =
         defined(invoker.enable_multidex) && invoker.enable_multidex