Move ChromeOS hardware class init out of MetricsService.

chrome/browser/metrics/metrics_services_manager.cc

Index: chrome/browser/metrics/metrics_services_manager.cc
diff --git a/chrome/browser/metrics/metrics_services_manager.cc b/chrome/browser/metrics/metrics_services_manager.cc
index 057527b0433a851bffd185aef0d26cddbfb5094a..460797a62a917a2fa2e8afa80f2640f7dd2470ca 100644
--- a/chrome/browser/metrics/metrics_services_manager.cc
+++ b/chrome/browser/metrics/metrics_services_manager.cc
@@ -7,7 +7,6 @@
 #include "base/command_line.h"
 #include "base/prefs/pref_service.h"
 #include "chrome/browser/metrics/chrome_metrics_service_client.h"
-#include "chrome/browser/metrics/extensions_metrics_provider.h"
 #include "chrome/browser/metrics/metrics_service.h"
 #include "chrome/browser/metrics/metrics_state_manager.h"
 #include "chrome/browser/metrics/variations/variations_service.h"
@@ -32,9 +31,6 @@ MetricsService* MetricsServicesManager::GetMetricsService() {
   if (!metrics_service_client_) {
     metrics_service_client_ =
         ChromeMetricsServiceClient::Create(GetMetricsStateManager()).Pass();
-    metrics_service_->RegisterMetricsProvider(
-        scoped_ptr<metrics::MetricsProvider>(
-            new ExtensionsMetricsProvider(GetMetricsStateManager())));
   }
   return metrics_service_client_->metrics_service();
 }