Fixing the bug, that caused UI to hang after unsupported device was inserted.

chrome/browser/idle_win.cc

Index: chrome/browser/idle_win.cc
diff --git a/chrome/browser/idle_win.cc b/chrome/browser/idle_win.cc
index c745ca9f37e3783d9855ec2c25e516b0e4a3fbc3..821ac3b8e1ce1f738d037a4a2f76ea899d30b8ee 100644
--- a/chrome/browser/idle_win.cc
+++ b/chrome/browser/idle_win.cc
@@ -11,7 +11,7 @@ static bool IsScreensaverRunning();
 static bool IsWorkstationLocked();
 
 void CalculateIdleState(unsigned int idle_threshold, IdleCallback notify) {
-  if (IsScreensaverRunning() || IsWorkstationLocked()) {
+  if (IsWorkstationInLockedState()) {
     notify.Run(IDLE_STATE_LOCKED);
     return;
   }
@@ -67,3 +67,7 @@ bool IsWorkstationLocked() {
   }
   return is_locked;
 }
+
+bool IsWorkstationInLockedState() {
+  return IsWorkstationLocked() || IsScreensaverRunning();
+}