Prevent inline install on fullscreen windows.

chrome/browser/extensions/webstore_inline_installer_browsertest.cc

 // Copyright 2013 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/extensions/webstore_inline_installer.h"
 
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/content_settings/host_content_settings_map_factory.h"
@@ skipping 238 matching lines @@
   ui_test_utils::NavigateToURL(browser(), install_url);
   // The test page opens a popup which is a new |browser| window.
   Browser* popup_browser =
       chrome::FindLastActiveWithProfile(browser()->profile());
   WebContents* popup_contents =
       popup_browser->tab_strip_model()->GetActiveWebContents();
   EXPECT_EQ(base::ASCIIToUTF16("POPUP"), popup_contents->GetTitle());
   RunTest(popup_contents, "runTest");
 }
 
+// Prevent inline install while in browser fullscreen mode. Browser fullscreen
+// is initiated by the user using F11.
+IN_PROC_BROWSER_TEST_F(WebstoreInlineInstallerTest,
+                       BlockInlineInstallFromFullscreenForBrowser) {
+  const GURL install_url =
+      GenerateTestServerUrl(kAppDomain, "install_from_fullscreen.html");
+  ui_test_utils::NavigateToURL(browser(), install_url);
+  AutoAcceptInstall();
+
+  // Enter browser fullscreen mode.
+  FullscreenController* controller =
+      browser()->exclusive_access_manager()->fullscreen_controller();
+  controller->ToggleBrowserFullscreenMode();
+
+  RunTest("runTest");
+
+  // Ensure extension is not installed.
+  ExtensionRegistry* registry = ExtensionRegistry::Get(profile());
+  EXPECT_FALSE(registry->GenerateInstalledExtensionsSet()->Contains(
+      "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb"));
+}
+
+// Prevent inline install while in tab fullscreen mode. Tab fullscreen is
+// initiated using the browser API.

[meacer, 2016/10/10 19:44:00]

nit: ... initiated by the page using requestFullscreen?

+IN_PROC_BROWSER_TEST_F(WebstoreInlineInstallerTest,
+                       BlockInlineInstallFromFullscreenForTab) {
+  const GURL install_url =
+      GenerateTestServerUrl(kAppDomain, "install_from_fullscreen.html");
+  ui_test_utils::NavigateToURL(browser(), install_url);
+  AutoAcceptInstall();
+  WebContents* web_contents =
+      browser()->tab_strip_model()->GetActiveWebContents();
+  FullscreenController* controller =
+      browser()->exclusive_access_manager()->fullscreen_controller();
+
+  // Enter tab fullscreen mode.
+  controller->EnterFullscreenModeForTab(web_contents, install_url);
+
+  RunTest("runTest");
+
+  // Ensure extension is not installed.
+  ExtensionRegistry* registry = ExtensionRegistry::Get(profile());
+  EXPECT_FALSE(registry->GenerateInstalledExtensionsSet()->Contains(
+      "bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb"));
+}
+
 // Ensure that inline-installing a disabled extension simply re-enables it.
 IN_PROC_BROWSER_TEST_F(WebstoreInlineInstallerTest,
                        ReinstallDisabledExtension) {
   // Install an extension via inline install, and confirm it is successful.
   AutoAcceptInstall();
   ui_test_utils::NavigateToURL(
       browser(), GenerateTestServerUrl(kAppDomain, "install.html"));
   RunTest("runTest");
   ExtensionRegistry* registry = ExtensionRegistry::Get(profile());
   ASSERT_TRUE(registry->enabled_extensions().GetByID(kTestExtensionId));
@@ skipping 90 matching lines @@
       browser(), GenerateTestServerUrl(kAppDomain, "both_listeners.html"),
       NEW_FOREGROUND_TAB, ui_test_utils::BROWSER_TEST_WAIT_FOR_NAVIGATION);
   DCHECK_NE(old_tab_index, browser()->tab_strip_model()->active_index());
   browser()->tab_strip_model()->CloseWebContentsAt(old_tab_index,
                                                    TabStripModel::CLOSE_NONE);
   WebstoreInstallerTest::RunTest("runTest");
   EXPECT_TRUE(registry->enabled_extensions().GetByID(kTestExtensionId));
 }
 
 }  // namespace extensions