OOPIF: Remove the FrameTreeNode when a RemoteFrame is detached.

chrome/browser/task_manager/task_manager_browsertest.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 "chrome/browser/task_manager/task_manager.h"
 
 #include "base/files/file_path.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/browser_process.h"
@@ skipping 1076 matching lines @@
   } else {
     ASSERT_NO_FATAL_FAILURE(
         WaitForTaskManagerRows(0, MatchSubframe("http://b.com/")));
     ASSERT_NO_FATAL_FAILURE(
         WaitForTaskManagerRows(1, MatchSubframe("http://c.com/")));
     ASSERT_NO_FATAL_FAILURE(WaitForTaskManagerRows(1, MatchAnySubframe()));
   }
   ASSERT_NO_FATAL_FAILURE(WaitForTaskManagerRows(1, MatchTab("aac")));
   ASSERT_NO_FATAL_FAILURE(WaitForTaskManagerRows(1, MatchAnyTab()));
 }
+
+// Tests what happens when a tab does a same-site navigation away from a page
+// with cross-site iframes.
+IN_PROC_BROWSER_TEST_P(TaskManagerOOPIFBrowserTest,
+                       LeavePageWithCrossSiteIframes) {
+  ShowTaskManager();
+
+  host_resolver()->AddRule("*", "127.0.0.1");
+  ASSERT_TRUE(embedded_test_server()->InitializeAndWaitUntilReady());
+  content::SetupCrossSiteRedirector(embedded_test_server());
+
+  // Navigate the tab to a page on a.com with cross-process subframes.
+  GURL a_dotcom_with_iframes(embedded_test_server()->GetURL(
+      "/cross-site/a.com/iframe_cross_site.html"));
+  browser()->OpenURL(content::OpenURLParams(a_dotcom_with_iframes,
+                                            content::Referrer(), CURRENT_TAB,
+                                            ui::PAGE_TRANSITION_TYPED, false));
+
+  ASSERT_NO_FATAL_FAILURE(
+      WaitForTaskManagerRows(1, MatchTab("cross-site iframe test")));
+  ASSERT_NO_FATAL_FAILURE(WaitForTaskManagerRows(1, MatchAnyTab()));
+
+  if (!ShouldExpectSubframes()) {
+    ASSERT_NO_FATAL_FAILURE(WaitForTaskManagerRows(0, MatchAnySubframe()));
+  } else {
+    ASSERT_NO_FATAL_FAILURE(
+        WaitForTaskManagerRows(1, MatchSubframe("http://b.com/")));
+    ASSERT_NO_FATAL_FAILURE(
+        WaitForTaskManagerRows(1, MatchSubframe("http://c.com/")));
+    ASSERT_NO_FATAL_FAILURE(WaitForTaskManagerRows(2, MatchAnySubframe()));
+  }
+
+  // Navigate the tab to a page on a.com without cross-process subframes, and
+  // the subframe processes should disappear.
+  GURL a_dotcom_simple(
+      embedded_test_server()->GetURL("/cross-site/a.com/title2.html"));
+  browser()->OpenURL(content::OpenURLParams(a_dotcom_simple,
+                                            content::Referrer(), CURRENT_TAB,
+                                            ui::PAGE_TRANSITION_TYPED, false));
+  ASSERT_NO_FATAL_FAILURE(
+      WaitForTaskManagerRows(1, MatchTab("Title Of Awesomeness")));
+  ASSERT_NO_FATAL_FAILURE(WaitForTaskManagerRows(0, MatchAnySubframe()));
+
+  HideTaskManager();
+  ShowTaskManager();
+
+  ASSERT_NO_FATAL_FAILURE(
+      WaitForTaskManagerRows(1, MatchTab("Title Of Awesomeness")));
+  ASSERT_NO_FATAL_FAILURE(WaitForTaskManagerRows(0, MatchAnySubframe()));
+}