Improve process launch handle sharing API.

android_webview/browser/aw_browser_terminator.cc

 // Copyright 2016 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 "android_webview/browser/aw_browser_terminator.h"
 
 #include <unistd.h>
 
 #include "android_webview/browser/aw_browser_process.h"
 #include "android_webview/browser/aw_render_process_gone_delegate.h"
@@ skipping 83 matching lines @@
   // (CrashDumpManager is registered first).
   TriggerMinidumpUploading();
 }
 
 }  // namespace
 
 AwBrowserTerminator::AwBrowserTerminator() {}
 
 AwBrowserTerminator::~AwBrowserTerminator() {}
 
-void AwBrowserTerminator::OnChildStart(int child_process_id,
-                                       content::FileDescriptorInfo* mappings) {
+void AwBrowserTerminator::OnChildStart(
+    int child_process_id,
+    content::PosixFileDescriptorInfo* mappings) {
   DCHECK_CURRENTLY_ON(content::BrowserThread::PROCESS_LAUNCHER);
 
   base::AutoLock auto_lock(child_process_id_to_pipe_lock_);
   DCHECK(!ContainsKey(child_process_id_to_pipe_, child_process_id));
 
   auto local_pipe = base::MakeUnique<base::SyncSocket>();
   auto child_pipe = base::MakeUnique<base::SyncSocket>();
   if (base::SyncSocket::CreatePair(local_pipe.get(), child_pipe.get())) {
     child_process_id_to_pipe_[child_process_id] = std::move(local_pipe);
     mappings->Transfer(kAndroidWebViewCrashSignalDescriptor,
@@ skipping 46 matching lines @@
     return;
   OnRenderProcessGone(child_process_id);
   DCHECK(pipe->handle() != base::SyncSocket::kInvalidHandle);
   BrowserThread::PostTask(
       BrowserThread::FILE, FROM_HERE,
       base::Bind(&AwBrowserTerminator::ProcessTerminationStatus,
                  child_process_id, pid, base::Passed(std::move(pipe))));
 }
 
 }  // namespace android_webview