Corrected bad DCHECK range check in BackgroundModeManager::ExecuteApplication.

chrome/browser/background_mode_manager.cc

Index: chrome/browser/background_mode_manager.cc
diff --git a/chrome/browser/background_mode_manager.cc b/chrome/browser/background_mode_manager.cc
index 06e54395d9051feecf6f1a4b3737b07e5a780c73..b9cb9110455c1f2ae99e0209881be011ea966692 100644
--- a/chrome/browser/background_mode_manager.cc
+++ b/chrome/browser/background_mode_manager.cc
@@ -498,6 +498,7 @@ void BackgroundModeManager::UpdateStatusTrayIconContextMenu() {
     menu->AddItemWithStringId(IDC_OPTIONS, IDS_OPTIONS);
 #endif
   }
+  menu->AddItemWithStringId(IDC_TASK_MANAGER, IDS_TASK_MANAGER);
   menu->AddSeparator();
   int application_position = 0;
   context_menu_application_offset_ = menu->GetItemCount();
@@ -541,7 +542,7 @@ void BackgroundModeManager::RemoveStatusTrayIcon() {
 }
 
 void BackgroundModeManager::ExecuteApplication(int item) {
-  DCHECK(item > 0 && item < static_cast<int>(applications_.size()));
+  DCHECK(item >= 0 && item < static_cast<int>(applications_.size()));
   Browser* browser = BrowserList::GetLastActive();
   if (!browser) {
     Browser::OpenEmptyWindow(profile_);
@@ -553,16 +554,19 @@ void BackgroundModeManager::ExecuteApplication(int item) {
 
 void BackgroundModeManager::ExecuteCommand(int item) {
   switch (item) {
+    case IDC_ABOUT:
+      GetBrowserWindow()->OpenAboutChromeDialog();
+      break;
     case IDC_EXIT:
       UserMetrics::RecordAction(UserMetricsAction("Exit"), profile_);
       BrowserList::CloseAllBrowsersAndExit();
       break;
-    case IDC_ABOUT:
-      GetBrowserWindow()->OpenAboutChromeDialog();
-      break;
     case IDC_OPTIONS:
       GetBrowserWindow()->OpenOptionsDialog();
       break;
+    case IDC_TASK_MANAGER:
+      GetBrowserWindow()->OpenTaskManager();
+      break;
     default:
       ExecuteApplication(item);
       break;