Remove NPAPI from browser and utility

chrome/browser/app_controller_mac.mm

Index: chrome/browser/app_controller_mac.mm
diff --git a/chrome/browser/app_controller_mac.mm b/chrome/browser/app_controller_mac.mm
index 90f1e0662cd452d40b914344be7a44a69c6b581d..5e46b72fa8c5a2a84dd93ac2518023b0e36a24cc 100644
--- a/chrome/browser/app_controller_mac.mm
+++ b/chrome/browser/app_controller_mac.mm
@@ -796,12 +796,6 @@ class AppControllerProfileObserver : public ProfileAttributesStorage::Observer {
       new HandoffActiveURLObserverBridge(self));
 }
 
-// This is called after profiles have been loaded and preferences registered.
-// It is safe to access the default profile here.
-- (void)applicationDidBecomeActive:(NSNotification*)notify {
-  content::PluginService::GetInstance()->AppActivated();
-}
-
 // Helper function for populating and displaying the in progress downloads at
 // exit alert panel.
 - (BOOL)userWillWaitForInProgressDownloads:(int)downloadCount {