Allow files generated by droidstubs to be copied in the SDK

We need to get files generated by a droidstubs target into the SDK. So
we first copy them into the out/target/common/obj/PACKAGING folder where
they can be picked up by the SDK build.

Bug: 142480924
Test: m sdk
Change-Id: I7a0b22907603e1d17ac05901ee7f8bb9cff89f7f
Merged-In: I7a0b22907603e1d17ac05901ee7f8bb9cff89f7f

core/Makefile

@@ -4742,6 +4742,7 @@ deps := \
 	$(target_notice_file_txt) \
 	$(tools_notice_file_txt) \
 	$(OUT_DOCS)/offline-sdk-timestamp \
+	$(SDK_METADATA_FILES) \
 	$(SYMBOLS_ZIP) \
 	$(COVERAGE_ZIP) \
 	$(APPCOMPAT_ZIP) \

core/clear_vars.mk

@@ -73,6 +73,7 @@ LOCAL_DROIDDOC_CUSTOM_TEMPLATE_DIR:=
 LOCAL_DROIDDOC_DOC_ZIP :=
 LOCAL_DROIDDOC_JDIFF_DOC_ZIP :=
 LOCAL_DROIDDOC_HTML_DIR:=
+LOCAL_DROIDDOC_METADATA_ZIP:=
 LOCAL_DROIDDOC_OPTIONS:=
 LOCAL_DROIDDOC_SOURCE_PATH:=
 LOCAL_DROIDDOC_STUB_OUT_DIR:=

core/soong_droiddoc_prebuilt.mk

@@ -38,3 +38,7 @@ ALL_DOCS += $(OUT_DOCS)/$(LOCAL_MODULE)-jdiff-docs.zip
 .PHONY: $(LOCAL_MODULE) $(LOCAL_MODULE)-jdiff
 $(LOCAL_MODULE) $(LOCAL_MODULE)-jdiff : $(OUT_DOCS)/$(LOCAL_MODULE)-jdiff-docs.zip
 endif
+
+ifdef LOCAL_DROIDDOC_METADATA_ZIP
+$(eval $(call copy-one-file,$(LOCAL_DROIDDOC_METADATA_ZIP),$(TARGET_OUT_COMMON_INTERMEDIATES)/PACKAGING/$(LOCAL_MODULE)-metadata.zip))
+endif