Fix the issue of cursor's device scale factor when using monitors with differnt device scale factor.

chrome/chrome_tests.gypi

Index: chrome/chrome_tests.gypi
diff --git a/chrome/chrome_tests.gypi b/chrome/chrome_tests.gypi
index 1a3e0598ef3e66029757d147cd706554ea7aec07..fa8e710fe0ee552b66385369b385af6c8ff934aa 100644
--- a/chrome/chrome_tests.gypi
+++ b/chrome/chrome_tests.gypi
@@ -596,6 +596,11 @@
             '../ui/views/views.gyp:test_support_views',
           ],
         }],
+        ['use_ash==1', {
+          'dependencies': [
+            '../ash/ash.gyp:test_support_ash',
+          ],
+        }],
         ['chromeos==1', {
           'sources': [
             'browser/chromeos/cros/cros_in_process_browser_test.cc',