SystemMonitor refactoring: move power state monitor into a separate class called PowerMonitor

chrome/browser/component_updater/test/component_updater_service_unittest.cc

Index: chrome/browser/component_updater/test/component_updater_service_unittest.cc
diff --git a/chrome/browser/component_updater/test/component_updater_service_unittest.cc b/chrome/browser/component_updater/test/component_updater_service_unittest.cc
index 6a25757cdfa4f84088d7d6a518c55bfb9e007a39..9df7ddbbb1f0da1335261bbe743fd149f3f4fd87 100644
--- a/chrome/browser/component_updater/test/component_updater_service_unittest.cc
+++ b/chrome/browser/component_updater/test/component_updater_service_unittest.cc
@@ -24,6 +24,10 @@
 #include "net/url_request/url_request_test_util.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
+#if defined(OS_MACOSX)
+#include "base/power_monitor/power_monitor.h"
+#endif
+
 using content::BrowserThread;
 using content::TestNotificationTracker;
 
@@ -139,6 +143,10 @@ class ComponentUpdaterTest : public testing::Test {
   };
 
   ComponentUpdaterTest() : component_updater_(NULL), test_config_(NULL) {
+#if defined(OS_MACOSX)
+    // Must be called before PowerMonitor's ctor.
+    base::PowerMonitor::AllocateSystemIOPorts();
+#endif
     // The component updater instance under test.
     test_config_ = new TestConfigurator;
     component_updater_.reset(ComponentUpdateServiceFactory(test_config_));