Add src_files to src_jar GN template

components/cronet/android/BUILD.gn

Index: components/cronet/android/BUILD.gn
diff --git a/components/cronet/android/BUILD.gn b/components/cronet/android/BUILD.gn
index b9ff617d5dc00928f9d3119a9ac052617e3c2228..8eff137c9851c95cae48b8687dd855b548cf8c3f 100644
--- a/components/cronet/android/BUILD.gn
+++ b/components/cronet/android/BUILD.gn
@@ -17,6 +17,9 @@ declare_args() {
   cronet_enable_data_reduction_proxy_support = false
 }
 
+_package_dir = "$root_out_dir/cronet"
+_extract_cronet_jars_dir = "$target_gen_dir/cronet_jar_extract"
+
 generate_jni("cronet_jni_headers") {
   sources = [
     "java/src/org/chromium/net/impl/ChromiumUrlRequest.java",
@@ -280,48 +283,21 @@ shared_library("cronet") {
 # cronet_api.jar defines Cronet API and provides implementation of
 # legacy api using HttpUrlConnection (not the Chromium stack).
 android_library("cronet_api") {
-  java_files = [
-    "api/src/org/chromium/net/BidirectionalStream.java",
-    "api/src/org/chromium/net/ChunkedWritableByteChannel.java",
-    "api/src/org/chromium/net/CronetEngine.java",
-    "api/src/org/chromium/net/CronetException.java",
-    "api/src/org/chromium/net/HttpUrlConnectionUrlRequest.java",
-    "api/src/org/chromium/net/HttpUrlConnectionUrlRequestFactory.java",
-    "api/src/org/chromium/net/HttpUrlRequest.java",
-    "api/src/org/chromium/net/HttpUrlRequestFactory.java",
-    "api/src/org/chromium/net/HttpUrlRequestListener.java",
-    "api/src/org/chromium/net/InlineExecutionProhibitedException.java",
-    "api/src/org/chromium/net/InputStreamChannel.java",
-    "api/src/org/chromium/net/JavaCronetEngine.java",
-    "api/src/org/chromium/net/JavaUrlRequest.java",
-    "api/src/org/chromium/net/NetworkQualityRttListener.java",
-    "api/src/org/chromium/net/NetworkQualityThroughputListener.java",
-    "api/src/org/chromium/net/Preconditions.java",
-    "api/src/org/chromium/net/QuicException.java",
-    "api/src/org/chromium/net/RequestFinishedInfo.java",
-    "api/src/org/chromium/net/ResponseTooLargeException.java",
-    "api/src/org/chromium/net/UploadDataProvider.java",
-    "api/src/org/chromium/net/UploadDataProviders.java",
-    "api/src/org/chromium/net/UploadDataSink.java",
-    "api/src/org/chromium/net/UrlRequest.java",
-    "api/src/org/chromium/net/UrlRequestException.java",
-    "api/src/org/chromium/net/UrlResponseInfo.java",
-    "api/src/org/chromium/net/UserAgent.java",
-  ]
-
   deps = [
+    ":jar_cronet_api_source",
     "//third_party/android_tools:android_support_annotations_java",
   ]
 
   srcjar_deps = [
     ":cronet_api_version_srcjar",
-    ":effective_connection_type_java",
     ":http_cache_type_java",
     ":url_request_error_java",
     ":load_states_list",
     ":network_quality_observation_source_java",
   ]
 
+  srcjars = [ "$_package_dir/cronet_api-src.jar" ]
+
   run_findbugs_override = true
 }
 
@@ -749,9 +725,6 @@ test("cronet_unittests") {
   }
 }
 
-_package_dir = "$root_out_dir/cronet"
-_extract_cronet_jars_dir = "$target_gen_dir/cronet_jar_extract"
-
 action("extract_cronet_jars") {
   # extract_from_jars.py deletes the target directory before extracting.
   script = "//components/cronet/tools/extract_from_jars.py"
@@ -811,7 +784,8 @@ action("repackage_extracted_jars") {
 
 template("jar_src") {
   action(target_name) {
-    _rebased_src_dirs = rebase_path(invoker.src_dirs, root_build_dir)
+    _rebased_src_search_dirs =
+        rebase_path(invoker.src_search_dirs, root_build_dir)
 
     script = "//components/cronet/tools/jar_src.py"
     depfile = "$target_gen_dir/$target_name.d"
@@ -819,45 +793,124 @@ template("jar_src") {
       invoker.jar_path,
     ]
     args = [
-      "--src-dir=${_rebased_src_dirs}",
+      "--src-search-dirs=${_rebased_src_search_dirs}",
+      "--src-files=${invoker.src_files}",
       "--jar-path",
       rebase_path(invoker.jar_path, root_build_dir),
       "--depfile",
       rebase_path(depfile, root_build_dir),
     ]
 
+    deps = []
+    if (defined(invoker.deps)) {
+      deps += invoker.deps
+    }
+
+    _src_jars = []
+
+    # Add src jar files that explicitly listed in "src_jars" attribute.
     if (defined(invoker.src_jars)) {
       inputs = invoker.src_jars
       _rebased_src_jars = rebase_path(invoker.src_jars, root_build_dir)
-      args += [ "--src-jar=${_rebased_src_jars}" ]
+      _src_jars += _rebased_src_jars
     }
-    deps = [
-      ":effective_connection_type_java",
-    ]
+
+    # Add src jars that are implicitly listed through "srcjar_deps" attribute.
+    if (defined(invoker.srcjar_deps)) {
+      foreach(srcjar_dep, invoker.srcjar_deps) {
+        _dep_gen_dir = get_label_info(srcjar_dep, "target_gen_dir")
+        _dep_name = get_label_info(srcjar_dep, "name")
+        _src_jars += rebase_path([ "$_dep_gen_dir/$_dep_name.srcjar" ])
+        deps += [ srcjar_dep ]
+      }
+    }
+
+    args += [ "--src-jar=${_src_jars}" ]
   }
 }
 
 jar_src("jar_cronet_api_source") {
-  src_dirs = [ "api/src" ]
+  src_search_dirs = [ "api/src" ]
+  src_files = [
+    "org/chromium/net/BidirectionalStream.java",
+    "org/chromium/net/ChunkedWritableByteChannel.java",
+    "org/chromium/net/CronetEngine.java",
+    "org/chromium/net/CronetException.java",
+    "org/chromium/net/HttpUrlConnectionUrlRequestFactory.java",
+    "org/chromium/net/HttpUrlConnectionUrlRequest.java",
+    "org/chromium/net/HttpUrlRequestFactory.java",
+    "org/chromium/net/HttpUrlRequest.java",
+    "org/chromium/net/HttpUrlRequestListener.java",
+    "org/chromium/net/InlineExecutionProhibitedException.java",
+    "org/chromium/net/InputStreamChannel.java",
+    "org/chromium/net/JavaCronetEngine.java",
+    "org/chromium/net/JavaUrlRequest.java",
+    "org/chromium/net/NetworkQualityRttListener.java",
+    "org/chromium/net/NetworkQualityThroughputListener.java",
+    "org/chromium/net/Preconditions.java",
+    "org/chromium/net/QuicException.java",
+    "org/chromium/net/RequestFinishedInfo.java",
+    "org/chromium/net/ResponseTooLargeException.java",
+    "org/chromium/net/UploadDataProvider.java",
+    "org/chromium/net/UploadDataProviders.java",
+    "org/chromium/net/UploadDataSink.java",
+    "org/chromium/net/UrlRequestException.java",
+    "org/chromium/net/UrlRequest.java",
+    "org/chromium/net/UrlResponseInfo.java",
+    "org/chromium/net/UserAgent.java",
+  ]
 
   # Include generated Java files which should be a part of the API.
-  src_jars = [ "$root_gen_dir/components/cronet/android/effective_connection_type_java.srcjar" ]
   jar_path = "$_package_dir/cronet_api-src.jar"
+  srcjar_deps = [ ":effective_connection_type_java" ]
 }
 
 jar_src("jar_cronet_sample_source") {
-  src_dirs = [ "sample" ]
+  src_search_dirs = [ "sample" ]
+  src_files = [
+    "AndroidManifest.xml",
+    "javatests/AndroidManifest.xml",
+    "javatests/proguard.cfg",
+    "javatests/src/org/chromium/cronet_sample_apk/Criteria.java",
+    "javatests/src/org/chromium/cronet_sample_apk/CronetSampleTest.java",
+    "README",
+    "res/layout/activity_main.xml",
+    "res/layout/dialog_url.xml",
+    "res/values/dimens.xml",
+    "res/values/strings.xml",
+    "src/org/chromium/cronet_sample_apk/CronetSampleActivity.java",
+    "src/org/chromium/cronet_sample_apk/CronetSampleApplication.java",
+  ]
   jar_path = "$_package_dir/cronet-sample-src.jar"
 }
 
 jar_src("jar_cronet_other_source") {
-  src_dirs = [
-    "//base/android/java/src",
-    "//components/cronet/android/java/src",
-    "//net/android/java/src",
-    "//url/android/java/src",
+  src_search_dirs = [ "//components/cronet/android/java/src" ]
+  src_files = [
+    "org/chromium/net/impl/ChromiumUrlRequestContext.java",
+    "org/chromium/net/impl/ChromiumUrlRequestFactory.java",
+    "org/chromium/net/impl/ChromiumUrlRequest.java",
+    "org/chromium/net/impl/CronetBidirectionalStream.java",
+    "org/chromium/net/impl/CronetLibraryLoader.java",
+    "org/chromium/net/impl/CronetUploadDataStream.java",
+    "org/chromium/net/impl/CronetUrlRequestContext.java",
+    "org/chromium/net/impl/CronetUrlRequest.java",
+    "org/chromium/net/urlconnection/CronetBufferedOutputStream.java",
+    "org/chromium/net/urlconnection/CronetChunkedOutputStream.java",
+    "org/chromium/net/urlconnection/CronetFixedModeOutputStream.java",
+    "org/chromium/net/urlconnection/CronetHttpURLConnection.java",
+    "org/chromium/net/urlconnection/CronetHttpURLStreamHandler.java",
+    "org/chromium/net/urlconnection/CronetInputStream.java",
+    "org/chromium/net/urlconnection/CronetOutputStream.java",
+    "org/chromium/net/urlconnection/CronetURLStreamHandlerFactory.java",
+    "org/chromium/net/urlconnection/MessageLoop.java",
   ]
   jar_path = "$_package_dir/cronet-src.jar"
+  srcjar_deps = [
+    "//base:base_java_srcjar",
+    "//net/android:net_java_srcjar",
+    "//url:url_java_srcjar",
+  ]
 }
 
 action("generate_licenses") {