Increase timeout for Mac when running print preview tests.

BUG=388517

Review URL: https://codereview.chromium.org/466223002

git-svn-id: svn://svn.chromium.org/blink/trunk@180206 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/Tools/Scripts/webkitpy/layout_tests/port/browser_test.py

@@ -80,6 +80,13 @@ class BrowserTestMacPort(BrowserTestPortOverrides, mac.MacPort):
     def _path_to_driver(self, configuration=None):
         return self._build_path_with_configuration(configuration, self.driver_name())
 
+    def default_timeout_ms(self):
+        timeout_ms = 20 * 1000
+        if self.get_option('configuration') == 'Debug':  # pylint: disable=E1101
+            # Debug is usually 2x-3x slower than Release.
+            return 3 * timeout_ms
+        return timeout_ms
+
 
 class BrowserTestWinPort(BrowserTestPortOverrides, win.WinPort):
     def default_timeout_ms(self):

third_party/WebKit/Tools/Scripts/webkitpy/layout_tests/port/browser_test_unittest.py

@@ -111,5 +111,5 @@ class BrowserTestMacTest(port_testcase.PortTestCase):
         self.assertEqual(port.check_sys_deps(needs_http=False), test_run_results.OK_EXIT_STATUS)
 
     def test_default_timeout_ms(self):
-        self.assertEqual(self.make_port(options=MockOptions(configuration='Release')).default_timeout_ms(), 10000)
-        self.assertEqual(self.make_port(options=MockOptions(configuration='Debug')).default_timeout_ms(), 30000)
+        self.assertEqual(self.make_port(options=MockOptions(configuration='Release')).default_timeout_ms(), 20000)
+        self.assertEqual(self.make_port(options=MockOptions(configuration='Debug')).default_timeout_ms(), 60000)