ChannelMojo: Handle when ChannelMojo outlives ChannelMojoHost

content/browser/renderer_host/render_process_host_impl.cc

Index: content/browser/renderer_host/render_process_host_impl.cc
diff --git a/content/browser/renderer_host/render_process_host_impl.cc b/content/browser/renderer_host/render_process_host_impl.cc
index 4eaf0508a18fe3ffc8fb24f788a0bc909d7254a3..cce4a1d1fc26c90cc2959e89871af4bc1c0fd122 100644
--- a/content/browser/renderer_host/render_process_host_impl.cc
+++ b/content/browser/renderer_host/render_process_host_impl.cc
@@ -137,7 +137,6 @@
 #include "ipc/ipc_logging.h"
 #include "ipc/ipc_switches.h"
 #include "ipc/mojo/ipc_channel_mojo.h"
-#include "ipc/mojo/ipc_channel_mojo_host.h"
 #include "media/base/media_switches.h"
 #include "net/url_request/url_request_context_getter.h"
 #include "ppapi/shared_impl/ppapi_switches.h"
@@ -2107,8 +2106,12 @@ void RenderProcessHostImpl::OnProcessLaunched() {
   // Chrome IPC message.
   MaybeActivateMojo();
 
-  if (channel_mojo_host_)
-    channel_mojo_host_->OnClientLaunched(child_process_launcher_->GetHandle());
+  if (channel_mojo_host_) {
+    base::ProcessHandle process = child_process_launcher_

[viettrungluu, 2014/09/25 19:38:34]

When can child_process_launcher_ be null? Maybe you should just use
RenderProcessHostImpl::GetHandle()?

[Hajime Morrita, 2014/09/25 22:00:03]

Done.

+                                      ? child_process_launcher_->GetHandle()
+                                      : base::GetCurrentProcessHandle();
+    channel_mojo_host_->OnClientLaunched(process);
+  }
 
   while (!queued_messages_.empty()) {
     Send(queued_messages_.front());