Make session restore understand that tabs have multiple SessionStorageNamespaces.

chrome/browser/extensions/isolated_app_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 "base/utf_string_conversions.h"
 #include "chrome/browser/automation/automation_util.h"
 #include "chrome/browser/extensions/extension_apitest.h"
 #include "chrome/browser/extensions/extension_host.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/profiles/profile.h"
@@ skipping 281 matching lines @@
   EXPECT_NE(process_id_0,
             chrome::GetWebContentsAt(browser(), 3)->GetRenderProcessHost()->GetID());
 
   // Navigating the second tab out of the app should cause a process swap.
   const GURL& non_app_url(base_url.Resolve("non_app/main.html"));
   NavigateInRenderer(chrome::GetWebContentsAt(browser(), 1), non_app_url);
   EXPECT_NE(process_id_1,
             chrome::GetWebContentsAt(browser(), 1)->GetRenderProcessHost()->GetID());
 }
 
-IN_PROC_BROWSER_TEST_F(IsolatedAppTest, SessionStorage) {
+IN_PROC_BROWSER_TEST_F(IsolatedAppTest, PRE_SessionStorage) {
   host_resolver()->AddRule("*", "127.0.0.1");
   ASSERT_TRUE(test_server()->Start());
 
   ASSERT_TRUE(LoadExtension(test_data_dir_.AppendASCII("isolated_apps/app1")));
   ASSERT_TRUE(LoadExtension(test_data_dir_.AppendASCII("isolated_apps/app2")));
 
   // The app under test acts on URLs whose host is "localhost",
   // so the URLs we navigate to must have host "localhost".
   GURL base_url = test_server()->GetURL(
       "files/extensions/isolated_apps/");
@@ skipping 51 matching lines @@
   EXPECT_EQ("ss_app2", result);
 
   ui_test_utils::NavigateToURLWithDisposition(
       browser(), base_url.Resolve("non_app/main.html"),
       CURRENT_TAB, ui_test_utils::BROWSER_TEST_WAIT_FOR_NAVIGATION);
   ASSERT_TRUE(ExecuteJavaScriptAndExtractString(
       chrome::GetWebContentsAt(browser(), 0)->GetRenderViewHost(),
       L"", kRetrieveSessionStorage.c_str(), &result));
   EXPECT_EQ("ss_normal", result);
 }
+
+// Okay, let's whack the brwoser, restore it, and see if we keep our
+// sessionStorage.
+IN_PROC_BROWSER_TEST_F(IsolatedAppTest, SessionStorage) {
+  host_resolver()->AddRule("*", "127.0.0.1");
+  ASSERT_TRUE(test_server()->Start());
+
+  ASSERT_TRUE(LoadExtension(test_data_dir_.AppendASCII("isolated_apps/app1")));
+  ASSERT_TRUE(LoadExtension(test_data_dir_.AppendASCII("isolated_apps/app2")));
+
+  // The app under test acts on URLs whose host is "localhost",
+  // so the URLs we navigate to must have host "localhost".
+  GURL base_url = test_server()->GetURL(
+      "files/extensions/isolated_apps/");
+  GURL::Replacements replace_host;
+  std::string host_str("localhost");  // Must stay in scope with replace_host.
+  replace_host.SetHostStr(host_str);
+  base_url = base_url.ReplaceComponents(replace_host);
+
+  const std::wstring& kRetrieveSessionStorage =
+      WrapForJavascriptAndExtract(
+          L"window.sessionStorage.getItem('testdata')");
+  std::string result;
+  Browser* new_browser = ui_test_utils::QuitBrowserAndRestore(browser(), 1);
+  ui_test_utils::NavigateToURLWithDisposition(
+      new_browser, base_url.Resolve("app1/main.html"),
+      CURRENT_TAB, ui_test_utils::BROWSER_TEST_WAIT_FOR_NAVIGATION);
+  ASSERT_TRUE(ExecuteJavaScriptAndExtractString(
+      chrome::GetWebContentsAt(new_browser, 0)->GetRenderViewHost(),
+      L"", kRetrieveSessionStorage.c_str(), &result));
+  EXPECT_EQ("ss_app1", result);
+
+  ui_test_utils::NavigateToURLWithDisposition(
+      new_browser, base_url.Resolve("app2/main.html"),
+      CURRENT_TAB, ui_test_utils::BROWSER_TEST_WAIT_FOR_NAVIGATION);
+  ASSERT_TRUE(ExecuteJavaScriptAndExtractString(
+      chrome::GetWebContentsAt(new_browser, 0)->GetRenderViewHost(),
+      L"", kRetrieveSessionStorage.c_str(), &result));
+  EXPECT_EQ("ss_app2", result);
+
+  ui_test_utils::NavigateToURLWithDisposition(
+      new_browser, base_url.Resolve("non_app/main.html"),
+      CURRENT_TAB, ui_test_utils::BROWSER_TEST_WAIT_FOR_NAVIGATION);
+  ASSERT_TRUE(ExecuteJavaScriptAndExtractString(
+      chrome::GetWebContentsAt(new_browser, 0)->GetRenderViewHost(),
+      L"", kRetrieveSessionStorage.c_str(), &result));
+  EXPECT_EQ("ss_normal", result);
+}