Enable ChannelMojo for non-renderer child processes

content/browser/browser_child_process_host_impl.h

Index: content/browser/browser_child_process_host_impl.h
diff --git a/content/browser/browser_child_process_host_impl.h b/content/browser/browser_child_process_host_impl.h
index 08e1b360a1147dec8c9124e9800333585eb3f978..8972736f2a79eccd1445665a77b59940eacc480a 100644
--- a/content/browser/browser_child_process_host_impl.h
+++ b/content/browser/browser_child_process_host_impl.h
@@ -64,6 +64,7 @@ class CONTENT_EXPORT BrowserChildProcessHostImpl
 
   // ChildProcessHostDelegate implementation:
   bool CanShutdown() override;
+  bool ShouldUseMojoChannel() override;
   void OnChildDisconnected() override;
   const base::Process& GetProcess() const override;
   bool OnMessageReceived(const IPC::Message& message) override;
@@ -71,6 +72,10 @@ class CONTENT_EXPORT BrowserChildProcessHostImpl
   void OnChannelError() override;
   void OnBadMessageReceived(const IPC::Message& message) override;
 
+  // Notify associated objects that the child process is launched.
+  // Clients can use this to fake process launch on the in-process mode.
+  void NotifyProcessLaunched();
+
   // Removes this host from the host list. Calls ChildProcessHost::ForceShutdown
   void ForceShutdown();