Improve process launch handle sharing API.

content/browser/child_process_launcher_helper_posix.cc

 // Copyright 2017 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.
 
 #include "content/browser/child_process_launcher_helper_posix.h"
 
 #include "base/command_line.h"
 #include "base/metrics/field_trial.h"
 #include "base/posix/global_descriptors.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/string_util.h"
-#include "content/browser/file_descriptor_info_impl.h"
+#include "content/browser/posix_file_descriptor_info_impl.h"
 #include "content/public/browser/content_browser_client.h"
 #include "content/public/common/content_client.h"
 #include "content/public/common/content_descriptors.h"
 #include "content/public/common/content_switches.h"
 #include "mojo/edk/embedder/platform_handle.h"
 #include "services/catalog/public/cpp/manifest_parsing_util.h"
 #include "services/service_manager/embedder/shared_file_util.h"
 #include "services/service_manager/embedder/switches.h"
 
 namespace content {
@@ skipping 41 matching lines @@
     return base::kInvalidPlatformFile;
   }
   // g_opened_files becomes the owner of the file descriptor.
   base::PlatformFile fd = file.TakePlatformFile();
   (*opened_files)[path] = std::make_pair(fd, *region);
   return fd;
 }
 
 }  // namespace
 
-std::unique_ptr<FileDescriptorInfo> CreateDefaultPosixFilesToMap(
+std::unique_ptr<PosixFileDescriptorInfo> CreateDefaultPosixFilesToMap(
     int child_process_id,
     const mojo::edk::PlatformHandle& mojo_client_handle,
     bool include_service_required_files,
     const std::string& process_type,
     base::CommandLine* command_line) {
-  std::unique_ptr<FileDescriptorInfo> files_to_register(
-      FileDescriptorInfoImpl::Create());
+  std::unique_ptr<PosixFileDescriptorInfo> files_to_register(
+      PosixFileDescriptorInfoImpl::Create());
 
   base::SharedMemoryHandle shm = base::FieldTrialList::GetFieldTrialHandle();
   if (shm.IsValid()) {
     files_to_register->Share(
         kFieldTrialDescriptor,
         base::SharedMemory::GetFdFromSharedMemoryHandle(shm));
   }
 
   DCHECK(mojo_client_handle.is_valid());
   files_to_register->Share(kMojoIPCChannel, mojo_client_handle.handle);
@@ skipping 52 matching lines @@
   DCHECK(GetRequiredFilesByServiceMap().count(service_name) == 0);
   GetRequiredFilesByServiceMap()[service_name] = std::move(required_files);
 }
 
 void ResetFilesToShareForTestingPosix() {
   GetRequiredFilesByServiceMap().clear();
 }
 
 }  // namespace internal
 }  // namespace content