Delete HostDelegate objects instead of HostImpl objects to avoid leaking the former.

content/browser/browser_child_process_host_impl.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 "content/browser/browser_child_process_host_impl.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/file_path.h"
 #include "base/lazy_instance.h"
@@ skipping 87 matching lines @@
 BrowserChildProcessHostImpl::~BrowserChildProcessHostImpl() {
   g_child_process_list.Get().remove(this);
 }
 
 // static
 void BrowserChildProcessHostImpl::TerminateAll() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
   // Make a copy since the BrowserChildProcessHost dtor mutates the original
   // list.
   BrowserChildProcessList copy = g_child_process_list.Get();
-  STLDeleteElements(&copy);
+  for (BrowserChildProcessList::iterator it = copy.begin();
+       it != copy.end(); ++it) {
+    delete (*it)->delegate();  // ~*HostDelegate deletes *HostImpl.
+  }
 }
 
 void BrowserChildProcessHostImpl::Launch(
 #if defined(OS_WIN)
     const FilePath& exposed_dir,
 #elif defined(OS_POSIX)
     bool use_zygote,
     const base::EnvironmentVector& environ,
 #endif
     CommandLine* cmd_line) {
@@ skipping 198 matching lines @@
 
 
 void BrowserChildProcessHostImpl::OnProcessLaunched() {
   if (!child_process_->GetHandle()) {
     delete delegate_;  // Will delete us
     return;
   }
   data_.handle = child_process_->GetHandle();
   delegate_->OnProcessLaunched();
 }