Escape selectors before evaluating them

tools/telemetry/telemetry/page/actions/click_element_unittest.py

Index: tools/telemetry/telemetry/page/actions/click_element_unittest.py
diff --git a/tools/telemetry/telemetry/page/actions/click_element_unittest.py b/tools/telemetry/telemetry/page/actions/click_element_unittest.py
index e0eec82fbfee27a0424a20ac989308a811803b88..2032d4f16c131d42e0864d5023b3c4d89484ac38 100644
--- a/tools/telemetry/telemetry/page/actions/click_element_unittest.py
+++ b/tools/telemetry/telemetry/page/actions/click_element_unittest.py
@@ -27,6 +27,25 @@ class ClickElementActionTest(tab_test_case.TabTestCase):
         self._tab.EvaluateJavaScript('document.location.pathname;'),
         '/blank.html')
 
+  def testClickWithSingleQuoteSelectorWaitForNavigation(self):
+    self._browser.SetHTTPServerDirectories(util.GetUnittestDataDir())
+    self._tab.Navigate(
+      self._browser.http_server.UrlOf('page_with_link.html'))
+    self._tab.WaitForDocumentReadyStateToBeComplete()
+    self.assertEquals(
+        self._tab.EvaluateJavaScript('document.location.pathname;'),
+        '/page_with_link.html')
+
+    data = {'selector': 'a[id=\'clickme\']'}
+    i = click_element.ClickElementAction(data)
+    data = {'condition': 'href_change'}
+    j = wait.WaitAction(data)
+    j.RunAction(None, self._tab, i)
+
+    self.assertEquals(
+        self._tab.EvaluateJavaScript('document.location.pathname;'),
+        '/blank.html')
+
   def testClickWithTextWaitForRefChange(self):
     self._browser.SetHTTPServerDirectories(util.GetUnittestDataDir())
     self._tab.Navigate(