Add more logging to ChildThread.

content/common/child_thread.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/common/child_thread.h"
 
 #include "base/allocator/allocator_extension.h"
 #include "base/command_line.h"
 #include "base/message_loop.h"
 #include "base/process.h"
@@ skipping 90 matching lines @@
   file_system_dispatcher_.reset(new FileSystemDispatcher());
   quota_dispatcher_.reset(new QuotaDispatcher());
 
   sync_message_filter_ =
       new IPC::SyncMessageFilter(ChildProcess::current()->GetShutDownEvent());
   histogram_message_filter_ = new content::ChildHistogramMessageFilter();
 
   channel_->AddFilter(histogram_message_filter_.get());
   channel_->AddFilter(sync_message_filter_.get());
   channel_->AddFilter(new ChildTraceMessageFilter());
+  LOG(INFO) << "ChildThread::Init";
 
 #if defined(OS_POSIX)
   // Check that --process-type is specified so we don't do this in unit tests
   // and single-process mode.
   if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kProcessType))
     channel_->AddFilter(new SuicideOnChannelErrorFilter());
 #endif
 }
 
 ChildThread::~ChildThread() {
 #ifdef IPC_MESSAGE_LOG_ENABLED
   IPC::Logging::GetInstance()->SetIPCSender(NULL);
 #endif
 
   channel_->RemoveFilter(histogram_message_filter_.get());
   channel_->RemoveFilter(sync_message_filter_.get());
 
   // The ChannelProxy object caches a pointer to the IPC thread, so need to
   // reset it as it's not guaranteed to outlive this object.
   // NOTE: this also has the side-effect of not closing the main IPC channel to
   // the browser process.  This is needed because this is the signal that the
   // browser uses to know that this process has died, so we need it to be alive
   // until this process is shut down, and the OS closes the handle
   // automatically.  We used to watch the object handle on Windows to do this,
   // but it wasn't possible to do so on POSIX.
   channel_->ClearIPCTaskRunner();
 }
 
+void ChildThread::OnChannelConnected(int32 peer_pid) {
+  LOG(INFO) << "ChildThread::OnChannelConnected";
+}
+
 void ChildThread::OnChannelError() {
   LOG(INFO) << "ChildThread::OnChannelError";
   set_on_channel_error_called(true);
   MessageLoop::current()->Quit();
 }
 
 bool ChildThread::Send(IPC::Message* msg) {
   DCHECK(MessageLoop::current() == message_loop());
   if (!channel_.get()) {
     delete msg;
@@ skipping 178 matching lines @@
   }
 
   // The child process shutdown sequence is a request response based mechanism,
   // where we send out an initial feeler request to the child process host
   // instance in the browser to verify if it's ok to shutdown the child process.
   // The browser then sends back a response if it's ok to shutdown. This avoids
   // race conditions if the process refcount is 0 but there's an IPC message
   // inflight that would addref it.
   Send(new ChildProcessHostMsg_ShutdownRequest);
 }