Shell: Remove ChildProcessHost::Delegate.

shell/child_process_host.cc

 // Copyright 2014 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 "shell/child_process_host.h"
 
 #include "base/base_switches.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/location.h"
 #include "base/logging.h"
 #include "base/macros.h"
 #include "base/process/kill.h"
 #include "base/process/launch.h"
 #include "base/task_runner.h"
 #include "base/task_runner_util.h"
 #include "shell/context.h"
 #include "shell/switches.h"
 
 namespace mojo {
 namespace shell {
 
-ChildProcessHost::ChildProcessHost(Context* context, Delegate* delegate)
-    : context_(context), delegate_(delegate) {
-  DCHECK(delegate);
+ChildProcessHost::ChildProcessHost(Context* context) : context_(context) {
   platform_channel_ = platform_channel_pair_.PassServerHandle();
   CHECK(platform_channel_.is_valid());
 }
 
 ChildProcessHost::~ChildProcessHost() {
   if (child_process_.IsValid()) {
     LOG(WARNING) << "Destroying ChildProcessHost with unjoined child";
     child_process_.Close();
   }
 }
 
 void ChildProcessHost::Start() {
   DCHECK(!child_process_.IsValid());
 
-  delegate_->WillStart();
+  WillStart();
 
   CHECK(base::PostTaskAndReplyWithResult(
       context_->task_runners()->blocking_pool(), FROM_HERE,
       base::Bind(&ChildProcessHost::DoLaunch, base::Unretained(this)),
-      base::Bind(&ChildProcessHost::DidLaunch, base::Unretained(this))));
+      base::Bind(&ChildProcessHost::DidStart, base::Unretained(this))));
 }
 
 int ChildProcessHost::Join() {
   DCHECK(child_process_.IsValid());
   int rv = -1;
   LOG_IF(ERROR, !child_process_.WaitForExit(&rv))
       << "Failed to wait for child process";
   child_process_.Close();
   return rv;
 }
@@ skipping 24 matching lines @@
   DVLOG(2) << "Launching child with command line: "
            << child_command_line.GetCommandLineString();
   child_process_ = base::LaunchProcess(child_command_line, options);
   if (!child_process_.IsValid())
     return false;
 
   platform_channel_pair_.ChildProcessLaunched();
   return true;
 }
 
-void ChildProcessHost::DidLaunch(bool success) {
-  delegate_->DidStart(success);
-}
-
 }  // namespace shell
 }  // namespace mojo