Fix a deprecated declaration warning in interactive_test_utils_mac.mm.

chrome/test/base/interactive_test_utils_mac.mm

Index: chrome/test/base/interactive_test_utils_mac.mm
diff --git a/chrome/test/base/interactive_test_utils_mac.mm b/chrome/test/base/interactive_test_utils_mac.mm
index 0d00f3a6614e3aacd4c9141ed971ae02590ea1d1..42ee5f272fd471c77ac778d80b31934fc7ecf378 100644
--- a/chrome/test/base/interactive_test_utils_mac.mm
+++ b/chrome/test/base/interactive_test_utils_mac.mm
@@ -21,7 +21,7 @@ bool ShowAndFocusNativeWindow(gfx::NativeWindow window) {
   // Make sure an unbundled program can get the input focus.
   ProcessSerialNumber psn = { 0, kCurrentProcess };
   TransformProcessType(&psn,kProcessTransformToForegroundApplication);
-  SetFrontProcess(&psn);
+  [[NSApplication sharedApplication] activateIgnoringOtherApps:YES];
 
   base::scoped_nsobject<WindowedNSNotificationObserver> async_waiter;
   if (![window isKeyWindow]) {