Delete the utility process startup ping.

chrome/browser/safe_browsing/sandboxed_zip_analyzer.cc

 // Copyright (c) 2012 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 "chrome/browser/safe_browsing/sandboxed_zip_analyzer.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/command_line.h"
@@ skipping 94 matching lines @@
   OnAnalyzeZipFileFinished(zip_analyzer::Results());
 }
 
 void SandboxedZipAnalyzer::OnProcessLaunchFailed() {
   OnAnalyzeZipFileFinished(zip_analyzer::Results());
 }
 
 bool SandboxedZipAnalyzer::OnMessageReceived(const IPC::Message& message) {
   bool handled = true;
   IPC_BEGIN_MESSAGE_MAP(SandboxedZipAnalyzer, message)
-    IPC_MESSAGE_HANDLER(ChromeUtilityHostMsg_ProcessStarted,
-                        OnUtilityProcessStarted)
     IPC_MESSAGE_HANDLER(
         ChromeUtilityHostMsg_AnalyzeZipFileForDownloadProtection_Finished,
         OnAnalyzeZipFileFinished)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
 }
 
 void SandboxedZipAnalyzer::StartProcessOnIOThread() {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   utility_process_host_ = content::UtilityProcessHost::Create(
       this,
       BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO).get())
       ->AsWeakPtr();
   utility_process_host_->SetName(l10n_util::GetStringUTF16(
       IDS_UTILITY_PROCESS_SAFE_BROWSING_ZIP_FILE_ANALYZER_NAME));
-  utility_process_host_->Send(new ChromeUtilityMsg_StartupPing);
-  // Wait for the startup notification before sending the main IPC to the
-  // utility process, so that we can dup the file handle.
-}
-
-void SandboxedZipAnalyzer::OnUtilityProcessStarted() {
-  DCHECK_CURRENTLY_ON(BrowserThread::IO);
   utility_process_host_->Send(
       new ChromeUtilityMsg_AnalyzeZipFileForDownloadProtection(
           IPC::TakePlatformFileForTransit(std::move(zip_file_)),
           IPC::GetPlatformFileForTransit(temp_file_.GetPlatformFile(),
                                          false /* !close_source_handle */)));
 }
 
 void SandboxedZipAnalyzer::OnAnalyzeZipFileFinished(
     const zip_analyzer::Results& results) {
   DCHECK_CURRENTLY_ON(BrowserThread::IO);
   if (callback_called_)
     return;
   BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
                           base::Bind(callback_, results));
   callback_called_ = true;
   CloseTemporaryFile();
 }
 
 }  // namespace safe_browsing