Changing SpawnChild to return a struct.

base/BUILD.gn

 # Copyright (c) 2013 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.
 
 # HOW TO WRITE CONDITIONALS IN THIS FILE
 # ======================================
 #
 # In many other places, one would write a conditional that expresses all the
 # cases when a source file is used or unused, and then either add or subtract
 # it from the sources list in that case
@@ skipping 165 matching lines @@
     "android/context_utils.h",
     "android/cpu_features.cc",
     "android/cpu_features.h",
     "android/cxa_demangle_stub.cc",
     "android/early_trace_event_binding.cc",
     "android/early_trace_event_binding.h",
     "android/event_log.cc",
     "android/event_log.h",
     "android/field_trial_list.cc",
     "android/field_trial_list.h",
+    "android/global_object_registry.cc",
+    "android/global_object_registry.h",
     "android/important_file_writer_android.cc",
     "android/important_file_writer_android.h",
     "android/java_exception_reporter.cc",
     "android/java_exception_reporter.h",
     "android/java_handler_thread.cc",
     "android/java_handler_thread.h",
     "android/java_message_handler_factory.h",
     "android/java_runtime.cc",
     "android/java_runtime.h",
     "android/jni_android.cc",
@@ skipping 12 matching lines @@
     "android/jni_weak_ref.h",
     "android/library_loader/library_load_from_apk_status_codes.h",
     "android/library_loader/library_loader_hooks.cc",
     "android/library_loader/library_loader_hooks.h",
     "android/library_loader/library_prefetcher.cc",
     "android/library_loader/library_prefetcher.h",
     "android/locale_utils.cc",
     "android/locale_utils.h",
     "android/memory_pressure_listener_android.cc",
     "android/memory_pressure_listener_android.h",
+    "android/parcelable_channel_client.cc",
+    "android/parcelable_channel_client.h",
+    "android/parcelable_channel_server.cc",
+    "android/parcelable_channel_server.h",
     "android/path_service_android.cc",
     "android/path_service_android.h",
     "android/path_utils.cc",
     "android/path_utils.h",
     "android/record_histogram.cc",
     "android/record_histogram.h",
     "android/record_user_action.cc",
     "android/record_user_action.h",
     "android/scoped_java_ref.cc",
     "android/scoped_java_ref.h",
@@ skipping 2169 matching lines @@
       "android/java/src/org/chromium/base/CpuFeatures.java",
       "android/java/src/org/chromium/base/EarlyTraceEvent.java",
       "android/java/src/org/chromium/base/EventLog.java",
       "android/java/src/org/chromium/base/FieldTrialList.java",
       "android/java/src/org/chromium/base/ImportantFileWriterAndroid.java",
       "android/java/src/org/chromium/base/JNIUtils.java",
       "android/java/src/org/chromium/base/JavaExceptionReporter.java",
       "android/java/src/org/chromium/base/JavaHandlerThread.java",
       "android/java/src/org/chromium/base/LocaleUtils.java",
       "android/java/src/org/chromium/base/MemoryPressureListener.java",
+      "android/java/src/org/chromium/base/ParcelableChannelClient.java",
+      "android/java/src/org/chromium/base/ParcelableChannelServer.java",
       "android/java/src/org/chromium/base/PathService.java",
       "android/java/src/org/chromium/base/PathUtils.java",
       "android/java/src/org/chromium/base/PowerMonitor.java",
       "android/java/src/org/chromium/base/SysUtils.java",
       "android/java/src/org/chromium/base/SystemMessageHandler.java",
       "android/java/src/org/chromium/base/ThreadUtils.java",
       "android/java/src/org/chromium/base/ThrowUncaughtException.java",
       "android/java/src/org/chromium/base/TimeUtils.java",
       "android/java/src/org/chromium/base/TraceEvent.java",
       "android/java/src/org/chromium/base/UnguessableToken.java",
@@ skipping 13 matching lines @@
   generate_jar_jni("android_runtime_jni_headers") {
     jni_package = "base"
     classes = [ "java/lang/Runtime.class" ]
   }
 
   android_library("base_java") {
     srcjar_deps = [
       ":base_android_java_enums_srcjar",
       ":base_build_config_gen",
       ":base_native_libraries_gen",
+      ":base_java_aidl",
     ]
 
     deps = [
       "//third_party/android_tools:android_support_annotations_java",
       "//third_party/android_tools:android_support_multidex_java",
       "//third_party/jsr-305:jsr_305_javalib",
     ]
 
     java_files = [
       "android/java/src/org/chromium/base/ActivityState.java",
       "android/java/src/org/chromium/base/AnimationFrameTimeHistogram.java",
       "android/java/src/org/chromium/base/ApiCompatibilityUtils.java",
       "android/java/src/org/chromium/base/ApkAssets.java",
       "android/java/src/org/chromium/base/ApplicationStatus.java",
       "android/java/src/org/chromium/base/BaseChromiumApplication.java",
       "android/java/src/org/chromium/base/BaseSwitches.java",
       "android/java/src/org/chromium/base/BuildInfo.java",
       "android/java/src/org/chromium/base/Callback.java",
       "android/java/src/org/chromium/base/CollectionUtil.java",
       "android/java/src/org/chromium/base/CommandLine.java",
       "android/java/src/org/chromium/base/CommandLineInitUtil.java",
       "android/java/src/org/chromium/base/ContentUriUtils.java",
       "android/java/src/org/chromium/base/ContextUtils.java",
       "android/java/src/org/chromium/base/CpuFeatures.java",
       "android/java/src/org/chromium/base/EarlyTraceEvent.java",
       "android/java/src/org/chromium/base/EventLog.java",
       "android/java/src/org/chromium/base/FieldTrialList.java",
       "android/java/src/org/chromium/base/FileUtils.java",
       "android/java/src/org/chromium/base/ImportantFileWriterAndroid.java",
+      "android/java/src/org/chromium/base/ParcelableChannelClient.java",
+      "android/java/src/org/chromium/base/ParcelableChannelServer.java",
       "android/java/src/org/chromium/base/JNIUtils.java",
       "android/java/src/org/chromium/base/JavaExceptionReporter.java",
       "android/java/src/org/chromium/base/JavaHandlerThread.java",
       "android/java/src/org/chromium/base/LocaleUtils.java",
       "android/java/src/org/chromium/base/Log.java",
       "android/java/src/org/chromium/base/MemoryPressureListener.java",
       "android/java/src/org/chromium/base/NonThreadSafe.java",
       "android/java/src/org/chromium/base/ObserverList.java",
       "android/java/src/org/chromium/base/PackageUtils.java",
+      "android/java/src/org/chromium/base/ParcelableWrapper.java",
       "android/java/src/org/chromium/base/PathService.java",
       "android/java/src/org/chromium/base/PathUtils.java",
       "android/java/src/org/chromium/base/PerfTraceEvent.java",
       "android/java/src/org/chromium/base/PowerMonitor.java",
       "android/java/src/org/chromium/base/Promise.java",
       "android/java/src/org/chromium/base/ResourceExtractor.java",
       "android/java/src/org/chromium/base/SecureRandomInitializer.java",
       "android/java/src/org/chromium/base/StreamUtil.java",
       "android/java/src/org/chromium/base/SysUtils.java",
       "android/java/src/org/chromium/base/SystemMessageHandler.java",
@@ skipping 158 matching lines @@
   android_library("base_java_unittest_support") {
     testonly = true
     deps = [
       ":base_java",
     ]
     java_files = [
       "test/android/java/src/org/chromium/base/ContentUriTestUtils.java",
       "test/android/java/src/org/chromium/base/TestSystemMessageHandler.java",
     ]
   }
+
+  android_aidl("base_java_aidl") {
+    import_include = [ "android/java/src" ]
+    sources = [
+      "android/java/src/org/chromium/base/IParcelableChannel.aidl",
+    ]
+  }
 }
 
 fuzzer_test("base_json_correctness_fuzzer") {
   sources = [
     "json/correctness_fuzzer.cc",
   ]
   deps = [
     ":base",
   ]
 }