Add a Content API around BrowserChildProcessHost, similar to what was done with ChildProcessHost....

chrome/browser/nacl_host/nacl_broker_host_win.h

Index: chrome/browser/nacl_host/nacl_broker_host_win.h
===================================================================
--- chrome/browser/nacl_host/nacl_broker_host_win.h	(revision 118420)
+++ chrome/browser/nacl_host/nacl_broker_host_win.h	(working copy)
@@ -7,9 +7,15 @@
 #pragma once
 
 #include "base/basictypes.h"
-#include "content/browser/browser_child_process_host.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/process.h"
+#include "content/public/browser/browser_child_process_host_delegate.h"
 
-class NaClBrokerHost : public BrowserChildProcessHost {
+namespace content {
+class BrowserChildProcessHost;
+}
+
+class NaClBrokerHost : public content::BrowserChildProcessHostDelegate {
  public:
   NaClBrokerHost();
   ~NaClBrokerHost();
@@ -30,11 +36,13 @@
   void OnLoaderLaunched(const std::wstring& loader_channel_id,
                         base::ProcessHandle handle);
 
-  // BrowserChildProcessHost implementation:
+  // BrowserChildProcessHostDelegate implementation:
   virtual bool OnMessageReceived(const IPC::Message& msg);
 
   bool stopping_;
 
+  scoped_ptr<content::BrowserChildProcessHost> process_;
+
   DISALLOW_COPY_AND_ASSIGN(NaClBrokerHost);
 };