Adds a context message of the security origin for web notifications.

chrome/browser/notifications/notification_browsertest.cc

Index: chrome/browser/notifications/notification_browsertest.cc
diff --git a/chrome/browser/notifications/notification_browsertest.cc b/chrome/browser/notifications/notification_browsertest.cc
index 36262e5449f9ec1a2e4ab138826af39766f8ebba..028d943150f855dbcc48a43af060c3d1e6347ca4 100644
--- a/chrome/browser/notifications/notification_browsertest.cc
+++ b/chrome/browser/notifications/notification_browsertest.cc
@@ -928,3 +928,18 @@ IN_PROC_BROWSER_TEST_F(NotificationsTest, TestNotificationDoubleClose) {
   result = CreateNotification(browser(), true, "", "Title1", "Body1", "chat");
   EXPECT_NE("-1", result);
 }
+
+IN_PROC_BROWSER_TEST_F(NotificationsTest, TestDisplayOriginContextMessage) {

[Peter Beverloo, 2015/01/10 00:03:33]

This should probably go in PlatformNotificationBrowserTest.

[dewittj, 2015/01/13 22:18:01]

Done.

+  ASSERT_TRUE(embedded_test_server()->InitializeAndWaitUntilReady());
+
+  // Creates a simple notification.
+  AllowAllOrigins();
+  ui_test_utils::NavigateToURL(browser(), GetTestPageURL());
+
+  std::string result = CreateSimpleNotification(browser(), true);
+  GURL base_url = embedded_test_server()->base_url();
+  std::string expected_display_origin = base::StringPrintf(
+      "%s:%s", base_url.host().c_str(), base_url.port().c_str());
+  EXPECT_EQ(base::UTF8ToUTF16(expected_display_origin),
+            (*notifications.rbegin())->context_message());
+}