Add an API around zygoteHost so that chrome doesn't reach into the internal content implementation.

content/browser/browser_main_loop.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/browser/browser_main_loop.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
 #include "base/logging.h"
@@ skipping 50 matching lines @@
 #include <dbus/dbus-glib.h>
 #endif
 
 #if defined(TOOLKIT_USES_GTK)
 #include "ui/gfx/gtk_util.h"
 #endif
 
 #if defined(OS_POSIX) && !defined(OS_MACOSX)
 #include <sys/stat.h>
 #include "content/browser/renderer_host/render_sandbox_host_linux.h"
-#include "content/browser/zygote_host_linux.h"
+#include "content/browser/zygote_host_impl_linux.h"
 #endif
 
 #if defined(USE_X11)
 #include <X11/Xlib.h>
 #endif
 
 // One of the linux specific headers defines this as a macro.
 #ifdef DestroyAll
 #undef DestroyAll
 #endif
@@ skipping 16 matching lines @@
 #if defined(LINUX_SANDBOX_PATH)
   if (!sandbox_binary)
     sandbox_binary = LINUX_SANDBOX_PATH;
 #endif
 
   std::string sandbox_cmd;
   if (sandbox_binary && !parsed_command_line.HasSwitch(switches::kNoSandbox))
     sandbox_cmd = sandbox_binary;
 
   // Tickle the sandbox host and zygote host so they fork now.
-  RenderSandboxHostLinux* shost = RenderSandboxHostLinux::GetInstance();
-  shost->Init(sandbox_cmd);
-  ZygoteHost* zhost = ZygoteHost::GetInstance();
-  zhost->Init(sandbox_cmd);
+  RenderSandboxHostLinux::GetInstance()->Init(sandbox_cmd);
+  ZygoteHostImpl::GetInstance()->Init(sandbox_cmd);
 }
 #endif
 
 #if defined(OS_LINUX) || defined(OS_OPENBSD)
 static void GLibLogHandler(const gchar* log_domain,
                            GLogLevelFlags log_level,
                            const gchar* message,
                            gpointer userdata) {
   if (!log_domain)
     log_domain = "<unknown>";
@@ skipping 508 matching lines @@
     MessageLoopForUI::current()->PostTask(FROM_HERE, *parameters_.ui_task);
 
 #if defined(OS_MACOSX)
   MessageLoopForUI::current()->Run();
 #else
   MessageLoopForUI::current()->RunWithDispatcher(NULL);
 #endif
 }
 
 }  // namespace content