Tab audio indicator: Use animation container on Mac

chrome/browser/ui/cocoa/tabs/throbbing_image_view_unittest.mm

Index: chrome/browser/ui/cocoa/tabs/throbbing_image_view_unittest.mm
diff --git a/chrome/browser/ui/cocoa/tabs/throbbing_image_view_unittest.mm b/chrome/browser/ui/cocoa/tabs/throbbing_image_view_unittest.mm
index 26d975f08817d27efdf21695ca97a19db3870d20..bdc15a5619313dca7577d58e10931539ff61713c 100644
--- a/chrome/browser/ui/cocoa/tabs/throbbing_image_view_unittest.mm
+++ b/chrome/browser/ui/cocoa/tabs/throbbing_image_view_unittest.mm
@@ -21,11 +21,12 @@ class ThrobbingImageViewTest : public CocoaTest {
     [image unlockFocus];
 
     scoped_nsobject<ThrobbingImageView> view([[ThrobbingImageView alloc]
-          initWithFrame:NSMakeRect(0, 0, 16, 16)
-        backgroundImage:image
-             throbImage:image
-             durationMS:20
-          throbPosition:kThrobPositionOverlay]);
+            initWithFrame:NSMakeRect(0, 0, 16, 16)
+          backgroundImage:image
+               throbImage:image
+               durationMS:20
+            throbPosition:kThrobPositionOverlay
+       animationContainer:NULL]);
     view_ = view.get();
     [[test_window() contentView] addSubview:view_];
   }