Files required by a service now listed in manifest.

content/app/android/child_process_service_impl.cc

Index: content/app/android/child_process_service_impl.cc
diff --git a/content/app/android/child_process_service_impl.cc b/content/app/android/child_process_service_impl.cc
index 66513172f0fd9a69a273362afbbf387e3767f3ff..22e7bea8b4a752ad682cf71853e8f46fde5398fd 100644
--- a/content/app/android/child_process_service_impl.cc
+++ b/content/app/android/child_process_service_impl.cc
@@ -8,9 +8,11 @@
 #include <cpu-features.h>
 
 #include "base/android/jni_array.h"
+#include "base/android/jni_string.h"
 #include "base/android/library_loader/library_loader_hooks.h"
 #include "base/android/memory_pressure_listener_android.h"
 #include "base/android/unguessable_token_android.h"
+#include "base/file_descriptor_store.h"
 #include "base/lazy_instance.h"
 #include "base/logging.h"
 #include "base/macros.h"
@@ -23,6 +25,7 @@
 #include "gpu/ipc/common/gpu_surface_lookup.h"
 #include "ipc/ipc_descriptors.h"
 #include "jni/ChildProcessServiceImpl_jni.h"
+#include "services/service_manager/public/cpp/shared_file_util.h"
 #include "ui/gl/android/scoped_java_surface.h"
 
 using base::android::AttachCurrentThread;
@@ -136,6 +139,49 @@ void InternalInitChildProcessImpl(JNIEnv* env,
 
 }  // namespace <anonymous>
 
+jlong CreateFileDescriptorStoreRegistrationContext(
+    JNIEnv* env,
+    const JavaParamRef<jclass>& clazz,
+    const JavaParamRef<jstring>& shared_param) {
+  if (shared_param.obj() == nullptr)
+    return 0L;
+
+  std::string param = base::android::ConvertJavaStringToUTF8(env, shared_param);
+  std::unique_ptr<std::map<int, std::string>> values =
+      base::MakeUnique<std::map<int, std::string>>();
+  if (!service_manager::ParseSharedFileSwitchValue(param, values.get()))
+    return 0L;
+  return reinterpret_cast<jlong>(values.release());
+}
+
+void ReleaseFileDescriptorStoreRegistrationContext(
+    JNIEnv* env,
+    const JavaParamRef<jclass>& clazz,
+    jlong context) {
+  delete reinterpret_cast<std::map<int, std::string>*>(context);
+}
+
+jboolean RegisterInFileDescriptorStore(JNIEnv* env,
+                                       const JavaParamRef<jclass>& clazz,
+                                       jlong store_context,
+                                       jint id,
+                                       jint fd,
+                                       jlong offset,
+                                       jlong size) {
+  if (!store_context)
+    return false;
+
+  std::map<int, std::string>* id_to_keys =
+      reinterpret_cast<std::map<int, std::string>*>(store_context);
+  const auto& iter = id_to_keys->find(id);
+  if (iter == id_to_keys->end())
+    return false;
+
+  base::MemoryMappedFile::Region region = {offset, size};
+  base::FileDescriptorStore::GetInstance()->Set(iter->second, fd, region);
+  return true;
+}
+
 void RegisterGlobalFileDescriptor(JNIEnv* env,
                                   const JavaParamRef<jclass>& clazz,
                                   jint id,