Extension-created windows should share the creator's BrowingInstance.

chrome/browser/extensions/api/tabs/tabs_test.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 <limits.h>
 #include <stddef.h>
 #include <stdint.h>
 
 #include <string>
 
@@ skipping 413 matching lines @@
 
 IN_PROC_BROWSER_TEST_F(ExtensionTabsTest,
                        DefaultToIncognitoWhenItIsForced) {
   static const char kArgsWithoutExplicitIncognitoParam[] =
       "[{\"url\": \"about:blank\"}]";
   // Force Incognito mode.
   IncognitoModePrefs::SetAvailability(browser()->profile()->GetPrefs(),
                                       IncognitoModePrefs::FORCED);
   // Run without an explicit "incognito" param.
   scoped_refptr<WindowsCreateFunction> function(new WindowsCreateFunction());
+  function->SetRenderFrameHost(
+      browser()->tab_strip_model()->GetActiveWebContents()->GetMainFrame());
   scoped_refptr<Extension> extension(test_util::CreateEmptyExtension());
   function->set_extension(extension.get());
   scoped_ptr<base::DictionaryValue> result(utils::ToDictionary(
       utils::RunFunctionAndReturnSingleResult(
           function.get(),
           kArgsWithoutExplicitIncognitoParam,
           browser(),
           utils::INCLUDE_INCOGNITO)));
 
   // Make sure it is a new(different) window.
   EXPECT_NE(ExtensionTabUtil::GetWindowId(browser()),
             GetWindowId(result.get()));
   // ... and it is incognito.
   EXPECT_TRUE(api_test_utils::GetBoolean(result.get(), "incognito"));
 
   // Now try creating a window from incognito window.
   Browser* incognito_browser = CreateIncognitoBrowser();
   // Run without an explicit "incognito" param.
   function = new WindowsCreateFunction();
+  function->SetRenderFrameHost(
+      browser()->tab_strip_model()->GetActiveWebContents()->GetMainFrame());
   function->set_extension(extension.get());
   result.reset(utils::ToDictionary(
       utils::RunFunctionAndReturnSingleResult(
           function.get(),
           kArgsWithoutExplicitIncognitoParam,
           incognito_browser,
           utils::INCLUDE_INCOGNITO)));
   // Make sure it is a new(different) window.
   EXPECT_NE(ExtensionTabUtil::GetWindowId(incognito_browser),
             GetWindowId(result.get()));
@@ skipping 1283 matching lines @@
   EXPECT_TRUE(
       base::MatchPattern(error, manifest_errors::kCannotAccessChromeUrl));
 
   // chrome.tabs.setZoomSettings().
   error = RunSetZoomSettingsExpectError(tab_id, "manual", "per-tab");
   EXPECT_TRUE(
       base::MatchPattern(error, manifest_errors::kCannotAccessChromeUrl));
 }
 
 }  // namespace extensions