Disable failing tests on Mac 10.10 and 10.11 after swarming.

chrome/browser/ui/cocoa/browser_window_cocoa_unittest.mm

Index: chrome/browser/ui/cocoa/browser_window_cocoa_unittest.mm
diff --git a/chrome/browser/ui/cocoa/browser_window_cocoa_unittest.mm b/chrome/browser/ui/cocoa/browser_window_cocoa_unittest.mm
index 32d2ef8c924b04a16c70fcdf9be4868cd9adf332..314b494bacde395510316e7faeee10a8cffe7a66 100644
--- a/chrome/browser/ui/cocoa/browser_window_cocoa_unittest.mm
+++ b/chrome/browser/ui/cocoa/browser_window_cocoa_unittest.mm
@@ -6,6 +6,7 @@
 
 #include <memory>
 
+#include "base/mac/mac_util.h"
 #include "base/mac/scoped_nsobject.h"
 #include "base/strings/string_util.h"
 #include "chrome/browser/chrome_notification_types.h"
@@ -74,6 +75,8 @@ TEST_F(BrowserWindowCocoaTest, TestWindowTitle) {
 // Test that IsMaximized() returns false when the browser window goes from
 // maximized to minimized state - http://crbug/452976.
 TEST_F(BrowserWindowCocoaTest, TestMinimizeState) {
+  if (base::mac::IsOS10_10())
+    return;  // Fails when swarmed. http://crbug.com/660582
   std::unique_ptr<BrowserWindowCocoa> bwc(
       new BrowserWindowCocoa(browser(), controller_));