Add tests for webRequest events and frame unload

chrome/browser/extensions/api/web_request/web_request_apitest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/command_line.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "base/strings/stringprintf.h"
 #include "build/build_config.h"
 #include "chrome/browser/chrome_notification_types.h"
@@ skipping 141 matching lines @@
   ASSERT_TRUE(StartEmbeddedTestServer());
   ASSERT_TRUE(RunExtensionSubtest("webrequest", "test_complex.html")) <<
       message_;
 }
 
 IN_PROC_BROWSER_TEST_F(ExtensionWebRequestApiTest, WebRequestTypes) {
   ASSERT_TRUE(StartEmbeddedTestServer());
   ASSERT_TRUE(RunExtensionSubtest("webrequest", "test_types.html")) << message_;
 }
 
+// Tests what happens when a frame/tab is removed while a response is being
+// received.

[battre, 2016/05/23 11:17:07]

Rephrase this to "Test that ... happens"?

[robwu, 2016/05/23 11:51:03]

Done.

+IN_PROC_BROWSER_TEST_F(ExtensionWebRequestApiTest,
+                       WebRequestUnloadAfterRequest) {
+  ASSERT_TRUE(StartEmbeddedTestServer());
+  ASSERT_TRUE(RunExtensionSubtest("webrequest", "test_unload.html?1")) <<
+      message_;
+  ASSERT_TRUE(RunExtensionSubtest("webrequest", "test_unload.html?2")) <<
+      message_;
+  ASSERT_TRUE(RunExtensionSubtest("webrequest", "test_unload.html?3")) <<
+      message_;
+  ASSERT_TRUE(RunExtensionSubtest("webrequest", "test_unload.html?4")) <<
+      message_;
+}
+
+// Tests what happens when a frame/tab is removed immediately after issuing a
+// request.

[battre, 2016/05/23 11:17:07]

Ditto.

[robwu, 2016/05/23 11:51:03]

Done.

+IN_PROC_BROWSER_TEST_F(ExtensionWebRequestApiTest,
+                       WebRequestUnloadImmediately) {
+  ASSERT_TRUE(StartEmbeddedTestServer());
+  ASSERT_TRUE(RunExtensionSubtest("webrequest", "test_unload.html?5")) <<
+      message_;
+  ASSERT_TRUE(RunExtensionSubtest("webrequest", "test_unload.html?6")) <<
+      message_;
+}
+
 // Flaky (sometimes crash): http://crbug.com/140976
 IN_PROC_BROWSER_TEST_F(ExtensionWebRequestApiTest,
                        DISABLED_WebRequestAuthRequired) {
   CancelLoginDialog login_dialog_helper;
 
   ASSERT_TRUE(StartEmbeddedTestServer());
   ASSERT_TRUE(RunExtensionSubtest("webrequest", "test_auth_required.html")) <<
       message_;
 }
 
@@ skipping 380 matching lines @@
   ASSERT_TRUE(granter);
   granter->RevokeForTesting();
   base::RunLoop().RunUntilIdle();
   PerformXhrInPage(web_contents, kHost, port, kXhrPath);
   EXPECT_EQ(xhr_count,
             GetWebRequestCountFromBackgroundPage(extension, profile()));
   EXPECT_EQ(BLOCKED_ACTION_WEB_REQUEST, runner->GetBlockedActions(extension));
 }
 
 }  // namespace extensions