Correct UIApplicationState check for sad tab test.

ios/chrome/browser/tabs/tab.mm

Index: ios/chrome/browser/tabs/tab.mm
diff --git a/ios/chrome/browser/tabs/tab.mm b/ios/chrome/browser/tabs/tab.mm
index b5e12d3765c2add415dff86d912e2a3beaf136a6..ec5ea753207215d46c425e232eb606079ff31195 100644
--- a/ios/chrome/browser/tabs/tab.mm
+++ b/ios/chrome/browser/tabs/tab.mm
@@ -1913,8 +1913,8 @@ void TabInfoBarObserver::OnInfoBarReplaced(infobars::InfoBar* old_infobar,
     RendererTerminationTabState tab_state =
         visible_ ? RendererTerminationTabState::FOREGROUND_TAB_FOREGROUND_APP
                  : RendererTerminationTabState::BACKGROUND_TAB_FOREGROUND_APP;
-    if ([UIApplication sharedApplication].applicationState ==
-        UIApplicationStateBackground) {
+    if ([UIApplication sharedApplication].applicationState !=
+        UIApplicationStateActive) {
       tab_state =
           visible_ ? RendererTerminationTabState::FOREGROUND_TAB_BACKGROUND_APP
                    : RendererTerminationTabState::BACKGROUND_TAB_BACKGROUND_APP;
@@ -1928,8 +1928,8 @@ void TabInfoBarObserver::OnInfoBarReplaced(infobars::InfoBar* old_infobar,
   }
 
   BOOL applicationIsBackgrounded =

[pkl (ping after 24h if needed), 2017/03/29 14:28:01]

nit: Can we rename this var to isNotActive or appIsNotActive?

[justincohen, 2017/03/29 15:23:37]

Done.

-      [UIApplication sharedApplication].applicationState ==
-      UIApplicationStateBackground;
+      [UIApplication sharedApplication].applicationState !=
+      UIApplicationStateActive;
   if (visible_) {
     if (!applicationIsBackgrounded) {
       base::WeakNSObject<Tab> weakSelf(self);