Turn FileDescriptorInfo a collection class

content/shell/browser/shell_content_browser_client.cc

 // Copyright 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.
 
 #include "content/shell/browser/shell_content_browser_client.h"
 
 #include "base/base_switches.h"
 #include "base/command_line.h"
 #include "base/files/file.h"
 #include "base/files/file_util.h"
@@ skipping 334 matching lines @@
     ResourceContext* resource_context,
     const GURL& current_url,
     const GURL& new_url) {
   return g_swap_processes_for_redirect;
 }
 
 #if defined(OS_POSIX) && !defined(OS_MACOSX)
 void ShellContentBrowserClient::GetAdditionalMappedFilesForChildProcess(
     const CommandLine& command_line,
     int child_process_id,
-    std::vector<FileDescriptorInfo>* mappings) {
+    FileDescriptorInfo* mappings) {
 #if defined(OS_ANDROID)
   int flags = base::File::FLAG_OPEN | base::File::FLAG_READ;
   base::FilePath pak_file;
   bool r = PathService::Get(base::DIR_ANDROID_APP_DATA, &pak_file);
   CHECK(r);
   pak_file = pak_file.Append(FILE_PATH_LITERAL("paks"));
   pak_file = pak_file.Append(FILE_PATH_LITERAL("content_shell.pak"));
 
   base::File f(pak_file, flags);
   if (!f.IsValid()) {
     NOTREACHED() << "Failed to open file when creating renderer process: "
                  << "content_shell.pak";
   }
-  mappings->push_back(
-      FileDescriptorInfo(kShellPakDescriptor, base::FileDescriptor(f.Pass())));
+
+  mappings->Transfer(kShellPakDescriptor, base::ScopedFD(f.TakePlatformFile()));
 
   if (breakpad::IsCrashReporterEnabled()) {
     f = breakpad::CrashDumpManager::GetInstance()->CreateMinidumpFile(
         child_process_id);
     if (!f.IsValid()) {
       LOG(ERROR) << "Failed to create file for minidump, crash reporting will "
                  << "be disabled for this process.";
     } else {
-      mappings->push_back(
-          FileDescriptorInfo(kAndroidMinidumpDescriptor,
-                             base::FileDescriptor(f.Pass())));
+      mappings->Transfer(kAndroidMinidumpDescriptor,
+                         base::ScopedFD(f.TakePlatformFile()));
     }
   }
 #else  // !defined(OS_ANDROID)
   int crash_signal_fd = GetCrashSignalFD(command_line);
   if (crash_signal_fd >= 0) {
-    mappings->push_back(FileDescriptorInfo(
-        kCrashDumpSignal, base::FileDescriptor(crash_signal_fd, false)));
+    mappings->Share(kCrashDumpSignal, crash_signal_fd);
   }
 #endif  // defined(OS_ANDROID)
 }
 #endif  // defined(OS_POSIX) && !defined(OS_MACOSX)
 
 #if defined(OS_WIN)
 void ShellContentBrowserClient::PreSpawnRenderer(sandbox::TargetPolicy* policy,
                                                  bool* success) {
   // Add sideloaded font files for testing. See also DIR_WINDOWS_FONTS
   // addition in |StartSandboxedProcess|.
@@ skipping 24 matching lines @@
 ShellBrowserContext*
 ShellContentBrowserClient::ShellBrowserContextForBrowserContext(
     BrowserContext* content_browser_context) {
   if (content_browser_context == browser_context())
     return browser_context();
   DCHECK_EQ(content_browser_context, off_the_record_browser_context());
   return off_the_record_browser_context();
 }
 
 }  // namespace content