Test session storage deletion

Session Storage is currently not properly tested by
BrowsingDataRemoverBrowserTest because it is not supported by the
SiteDataCounter and the CookieTreeModel. This Cl adds an integration
test for its web-visible behavior.

Bug: 843995
Change-Id: I3eac6903995e4b4773bbcc08bc3f551001a4cdbb
Reviewed-on: https://chromium-review.googlesource.com/1113306
Commit-Queue: Christian Dullweber <dullweber@chromium.org>
Reviewed-by: Martin Šrámek <msramek@chromium.org>
Cr-Commit-Position: refs/heads/master@{#572144}

chrome/browser/browsing_data/browsing_data_remover_browsertest.cc

@@ -642,6 +642,21 @@ IN_PROC_BROWSER_TEST_P(BrowsingDataRemoverBrowserTestP,
   TestSiteData("SessionStorage", GetParam());
 }
 
+// SessionStorage is not supported by site data counting and the cookie tree
+// model but we can test the web visible behavior.
+IN_PROC_BROWSER_TEST_P(BrowsingDataRemoverBrowserTestP,
+                       SessionStorageDeletion) {
+  GURL url = embedded_test_server()->GetURL("/browsing_data/site_data.html");
+  ui_test_utils::NavigateToURL(browser(), url);
+  const std::string type = "SessionStorage";
+  EXPECT_FALSE(HasDataForType(type));
+  SetDataForType(type);
+  EXPECT_TRUE(HasDataForType(type));
+  RemoveAndWait(ChromeBrowsingDataRemoverDelegate::DATA_TYPE_SITE_DATA,
+                GetParam());
+  EXPECT_FALSE(HasDataForType(type));
+}
+
 // Test that session storage is not counted until crbug.com/772337 is fixed.
 IN_PROC_BROWSER_TEST_F(BrowsingDataRemoverBrowserTest, SessionStorageCounting) {
   EXPECT_EQ(0, GetSiteDataCount());