Turn on component updater on chromeos, only for the pnacl component.

chrome/browser/chrome_browser_main.cc

Index: chrome/browser/chrome_browser_main.cc
diff --git a/chrome/browser/chrome_browser_main.cc b/chrome/browser/chrome_browser_main.cc
index d7f2f648b0a65f3465316190b3c67627705da54f..039c36b2ac9e89c45b5bd7135ea459f5afd595eb 100644
--- a/chrome/browser/chrome_browser_main.cc
+++ b/chrome/browser/chrome_browser_main.cc
@@ -480,16 +480,22 @@ void RegisterComponentsForUpdate(const CommandLine& command_line) {
   // Registration can be before of after cus->Start() so it is ok to post
   // a task to the UI thread to do registration once you done the necessary
   // file IO to know you existing component version.
+#if !defined(OS_CHROMEOS)
   RegisterRecoveryComponent(cus, g_browser_process->local_state());
   RegisterPepperFlashComponent(cus);
   RegisterSwiftShaderComponent(cus);
 
   // CRLSetFetcher attempts to load a CRL set from either the local disk or
   // network.
-  if (!command_line.HasSwitch(switches::kDisableCRLSets))
+  if (!command_line.HasSwitch(switches::kDisableCRLSets)
+      && g_browser_process->crl_set_fetcher())
     g_browser_process->crl_set_fetcher()->StartInitialLoad(cus);
+#endif
 
-  RegisterPnaclComponent(cus, command_line);
+  if (g_browser_process->pnacl_component_installer()) {
+    g_browser_process->pnacl_component_installer()->RegisterPnaclComponent(
+        cus, command_line);
+  }
 
   cus->Start();
 }