Add core plumbing for Instant Extended work

chrome/browser/ui/search/search_delegate_unittest.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 "chrome/browser/ui/browser.h"
+#include "chrome/browser/ui/search/search_model.h"
+#include "chrome/browser/ui/search/search_tab_helper.h"
+#include "chrome/browser/ui/tab_contents/tab_contents.h"
+#include "chrome/common/chrome_switches.h"
+#include "chrome/test/base/browser_with_test_window_test.h"
+
+namespace chrome {
+namespace search {
+
+typedef BrowserWithTestWindowTest SearchDelegateTest;
+
+// Test the propagation of search "mode" changes from the tab's search model to
+// the browser's search model.
+TEST_F(SearchDelegateTest, SearchModel) {
+  CommandLine* command_line = CommandLine::ForCurrentProcess();
+  command_line->AppendSwitch(switches::kEnableInstantExtendedAPI);
+
+  // Initial state.
+  EXPECT_TRUE(browser()->search_model()->mode().is_default());
+
+  // Propagate change from tab's search model to browser's search model.
+  AddTab(browser(), GURL("http://foo/0"));
+  TabContents* contents = browser()->GetTabContentsAt(0);
+  contents->search_tab_helper()->model()->SetMode(Mode(Mode::MODE_NTP, false));
+  EXPECT_TRUE(browser()->search_model()->mode().is_ntp());
+
+  // Add second tab, make it active, and make sure its mode changes
+  // propagate to the browser's search model.
+  AddTab(browser(), GURL("http://foo/1"));
+  browser()->ActivateTabAt(1, true);
+  contents = browser()->GetTabContentsAt(1);
+  contents->search_tab_helper()->model()->SetMode(
+      Mode(Mode::MODE_SEARCH, false));
+  EXPECT_TRUE(browser()->search_model()->mode().is_search());
+
+  // The first tab is not active so changes should not propagate.
+  contents = browser()->GetTabContentsAt(0);
+  contents->search_tab_helper()->model()->SetMode(Mode(Mode::MODE_NTP, false));
+  EXPECT_TRUE(browser()->search_model()->mode().is_search());
+}
+
+}  // namespace search
+}  // namespace chrome