Start PowerUsageMonitor unconditionally from UMA bit.

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 f48e2ead9eba592a4a937411bd9e968a4da99b72..1fe82adcde3ebbda95389e0ecfc1eb8aee299ac4 100644
--- a/chrome/browser/chrome_browser_main.cc
+++ b/chrome/browser/chrome_browser_main.cc
@@ -1787,8 +1787,7 @@ int ChromeBrowserMainParts::PreMainMessageLoopRunImpl() {
   browser_creator_.reset();
 
 #if !defined(OS_LINUX) || defined(OS_CHROMEOS)  // http://crbug.com/426393
-  if (g_browser_process->metrics_service()->reporting_active())
-    content::StartPowerUsageMonitor();
+  content::StartPowerUsageMonitor();
 #endif  // !defined(OS_LINUX) || defined(OS_CHROMEOS)
 
   process_power_collector_.reset(new ProcessPowerCollector);