Remove Instant v1 API.

chrome/browser/instant/instant_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/command_line.h"
-#include "base/string_util.h"
 #include "base/stringprintf.h"
-#include "base/utf_string_conversions.h"
 #include "chrome/browser/content_settings/host_content_settings_map.h"
+#include "chrome/browser/history/history.h"
+#include "chrome/browser/history/history_service_factory.h"
 #include "chrome/browser/instant/instant_controller.h"
 #include "chrome/browser/instant/instant_loader.h"
 #include "chrome/browser/prefs/pref_service.h"
-#include "chrome/browser/profiles/profile.h"
-#include "chrome/browser/search_engines/template_url.h"
 #include "chrome/browser/search_engines/template_url_service.h"
 #include "chrome/browser/search_engines/template_url_service_factory.h"
 #include "chrome/browser/task_manager/task_manager.h"
 #include "chrome/browser/task_manager/task_manager_browsertest_util.h"
-#include "chrome/browser/ui/browser.h"
+#include "chrome/browser/ui/browser_commands.h"
 #include "chrome/browser/ui/browser_instant_controller.h"
 #include "chrome/browser/ui/browser_tabstrip.h"
 #include "chrome/browser/ui/browser_window.h"
 #include "chrome/browser/ui/omnibox/location_bar.h"
 #include "chrome/browser/ui/omnibox/omnibox_edit_model.h"
 #include "chrome/browser/ui/omnibox/omnibox_view.h"
 #include "chrome/browser/ui/tab_contents/tab_contents.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/pref_names.h"
-#include "chrome/common/url_constants.h"
 #include "chrome/test/base/in_process_browser_test.h"
 #include "chrome/test/base/ui_test_utils.h"
-#include "content/public/browser/navigation_controller.h"
 #include "content/public/browser/notification_service.h"
-#include "content/public/browser/render_view_host.h"
-#include "content/public/browser/render_widget_host_view.h"
 #include "content/public/browser/web_contents.h"
-#include "content/public/common/content_switches.h"
 #include "content/public/test/browser_test_utils.h"
 #include "grit/generated_resources.h"
 #include "ui/base/l10n/l10n_util.h"
 
-using content::WebContents;
-
-// Tests are flaky on Linux because of http://crbug.com/80118.
-#if defined(OS_LINUX) && !defined(USE_ASH)
-#define MAYBE(TestName) DISABLED_ ## TestName
-#elif defined(OS_WIN)
-#define MAYBE(TestName) FLAKY_ ## TestName
-#else
-#define MAYBE(TestName) TestName
-#endif
-
 class InstantTest : public InProcessBrowserTest {
- public:
-  InstantTest() {}
-
-  void EnableInstant() {
-    InstantController::Enable(browser()->profile());
-  }
-
-  void SetupInstantProvider(const std::string& page) {
-    Profile* profile = browser()->profile();
-    TemplateURLService* model =
-        TemplateURLServiceFactory::GetForProfile(profile);
-
-    content::WindowedNotificationObserver observer(
-        chrome::NOTIFICATION_TEMPLATE_URL_SERVICE_LOADED,
-        content::NotificationService::AllSources());
-    if (!model->loaded()) {
-      model->Load();
-      observer.Wait();
-    }
+ protected:
+  virtual void SetUpCommandLine(CommandLine* command_line) {
+    // Do not prelaunch the GPU process because it will show up in the task
+    // manager, but whether it appears before or after the Instant tab is not
+    // well defined. This affects the TaskManagerPrefix test below.
+    command_line->AppendSwitch(switches::kDisableGpuProcessPrelaunch);
+  }
+
+  void SetupInstant(const std::string& page) {
+    ASSERT_TRUE(test_server()->Start());
+
+    TemplateURLService* service =
+        TemplateURLServiceFactory::GetForProfile(browser()->profile());
+    ui_test_utils::WaitForTemplateURLServiceToLoad(service);
 
     TemplateURLData data;
-    data.short_name = ASCIIToUTF16("foo");
-    data.SetKeyword(ASCIIToUTF16("foo"));
     data.SetURL(base::StringPrintf("http://%s:%d/files/%s?q={searchTerms}",
         test_server()->host_port_pair().host().c_str(),
         test_server()->host_port_pair().port(), page.c_str()));
     data.instant_url = data.url();
-    // TemplateURLService takes ownership of this.
-    TemplateURL* template_url = new TemplateURL(profile, data);
-    model->Add(template_url);
-    model->SetDefaultSearchProvider(template_url);
-  }
-
-  // Type a character to get instant to trigger and determine instant support.
-  void DetermineInstantSupport() {
-    content::WindowedNotificationObserver observer(
-        chrome::NOTIFICATION_INSTANT_SUPPORT_DETERMINED,
-        content::NotificationService::AllSources());
-    // "a" triggers the "about:" provider. "b" begins the "bing.com" keyword.
-    // "c" might someday trigger a "chrome:" provider.
-    omnibox()->SetUserText(ASCIIToUTF16("d"));
-    observer.Wait();
-  }
-
-  // Types "def" into the omnibox and waits for the preview to be shown.
-  void SearchAndWaitForPreviewToShow() {
-    content::WindowedNotificationObserver observer(
-        chrome::NOTIFICATION_INSTANT_CONTROLLER_SHOWN,
-        content::NotificationService::AllSources());
-    omnibox()->SetUserText(ASCIIToUTF16("def"));
-    observer.Wait();
-  }
-
-  // Sends a message to the renderer and waits for the response to come back to
-  // the browser. Returns true on success.
-  bool WaitForMessageToBeProcessedByRenderer() {
-    bool result = false;
-    return GetBoolFromJavascript(preview()->web_contents(), "true", &result) &&
-           result;
+
+    TemplateURL* template_url = new TemplateURL(browser()->profile(), data);
+    service->Add(template_url);  // Takes ownership of |template_url|.
+    service->SetDefaultSearchProvider(template_url);
+
+    browser()->profile()->GetPrefs()->SetBoolean(prefs::kInstantEnabled, true);
+  }
+
+  OmniboxView* omnibox() const {
+    return browser()->window()->GetLocationBar()->GetLocationEntry();
   }
 
   InstantController* instant() const {
     return browser()->instant_controller()->instant();
   }
 
-  OmniboxView* omnibox() const {
-    return browser()->window()->GetLocationBar()->GetLocationEntry();
-  }
-
-  TabContents* preview() const {
-    return instant()->GetPreviewContents();
-  }
-
-  InstantLoader* loader() const {
-    return instant()->loader_.get();
-  }
-
-  std::string GetSuggestion() const {
-    return UTF16ToUTF8(loader()->complete_suggested_text_);
-  }
-
-  bool PressEnter() {
-    return ui_test_utils::SendKeyPressSync(
-        browser(), ui::VKEY_RETURN, false, false, false, false);
-  }
-
-  bool SetSuggestionsJavascriptArgument(const std::string& argument) {
-    std::wstring script = UTF8ToWide(base::StringPrintf(
-        "window.setSuggestionsArgument = %s;", argument.c_str()));
-    content::RenderViewHost* rvh =
-        preview()->web_contents()->GetRenderViewHost();
-    return content::ExecuteJavaScript(rvh, std::wstring(), script);
-  }
-
-  std::wstring WrapScript(const std::string& script) {
-    return UTF8ToWide(base::StringPrintf(
-        "window.domAutomationController.send(%s)", script.c_str()));
-  }
-
-  bool GetStringFromJavascript(WebContents* tab,
-                               const std::string& script,
-                               std::string* result) {
+  void WaitFor(chrome::NotificationType notification_type) const {
+    content::WindowedNotificationObserver observer(
+        notification_type, content::NotificationService::AllSources());
+    observer.Wait();
+  }
+
+  std::wstring WrapScript(const std::string& script) const {
+    return UTF8ToWide("domAutomationController.send(" + script + ")");
+  }
+
+  bool GetBoolFromJS(content::RenderViewHost* rvh,
+                     const std::string& script,
+                     bool* result) const WARN_UNUSED_RESULT {
+    return content::ExecuteJavaScriptAndExtractBool(
+        rvh, std::wstring(), WrapScript(script), result);
+  }
+
+  bool GetIntFromJS(content::RenderViewHost* rvh,
+                    const std::string& script,
+                    int* result) const WARN_UNUSED_RESULT {
+    return content::ExecuteJavaScriptAndExtractInt(
+        rvh, std::wstring(), WrapScript(script), result);
+  }
+
+  bool GetStringFromJS(content::RenderViewHost* rvh,
+                       const std::string& script,
+                       std::string* result) const WARN_UNUSED_RESULT {
     return content::ExecuteJavaScriptAndExtractString(
-        tab->GetRenderViewHost(), std::wstring(), WrapScript(script), result);
-  }
-
-  bool GetIntFromJavascript(WebContents* tab,
-                            const std::string& script,
-                            int* result) {
-    return content::ExecuteJavaScriptAndExtractInt(
-        tab->GetRenderViewHost(), std::wstring(), WrapScript(script), result);
-  }
-
-  bool GetBoolFromJavascript(WebContents* tab,
-                             const std::string& script,
-                             bool* result) {
-    return content::ExecuteJavaScriptAndExtractBool(
-        tab->GetRenderViewHost(), std::wstring(), WrapScript(script), result);
-  }
-
-  bool CheckVisibilityIs(WebContents* tab, bool visible) {
-    bool hidden = visible;
-    return GetBoolFromJavascript(tab, "document.webkitHidden", &hidden) &&
-           hidden != visible;
-  }
-
-  // Returns the state of the search box as a string. This consists of the
-  // following:
-  // window.chrome.sv
-  // window.onsubmitcalls
-  // window.oncancelcalls
-  // window.onchangecalls
-  // 'true' if any window.onresize call has been sent, otherwise false.
-  // window.beforeLoadSearchBox.value
-  // window.beforeLoadSearchBox.verbatim
-  // window.chrome.searchBox.value
-  // window.chrome.searchBox.verbatim
-  // window.chrome.searchBox.selectionStart
-  // window.chrome.searchBox.selectionEnd
-  // If determining any of the values fails, the value is 'fail'.
-  //
-  // If |use_last| is true, then the last searchBox values are used instead of
-  // the current. Set |use_last| to true when testing OnSubmit/OnCancel.
-  std::string GetSearchStateAsString(WebContents* tab, bool use_last) {
-    bool sv = false;
-    int onsubmitcalls = 0;
-    int oncancelcalls = 0;
-    int onchangecalls = 0;
-    int onresizecalls = 0;
-    int selection_start = 0;
-    int selection_end = 0;
-    std::string before_load_value;
-    bool before_load_verbatim = false;
-    std::string value;
-    bool verbatim = false;
-
-    if (!GetBoolFromJavascript(tab, "window.chrome.sv", &sv) ||
-        !GetIntFromJavascript(tab, "window.onsubmitcalls", &onsubmitcalls) ||
-        !GetIntFromJavascript(tab, "window.oncancelcalls", &oncancelcalls) ||
-        !GetIntFromJavascript(tab, "window.onchangecalls", &onchangecalls) ||
-        !GetIntFromJavascript(tab, "window.onresizecalls", &onresizecalls) ||
-        !GetStringFromJavascript(tab, "window.beforeLoadSearchBox.value",
-                                 &before_load_value) ||
-        !GetBoolFromJavascript(tab, "window.beforeLoadSearchBox.verbatim",
-                               &before_load_verbatim)) {
-      return "fail";
-    }
-
-    if (use_last &&
-        (!GetStringFromJavascript(tab, "window.lastSearchBox.value", &value) ||
-         !GetBoolFromJavascript(tab, "window.lastSearchBox.verbatim",
-                                &verbatim) ||
-         !GetIntFromJavascript(tab, "window.lastSearchBox.selectionStart",
-                               &selection_start) ||
-         !GetIntFromJavascript(tab, "window.lastSearchBox.selectionEnd",
-                               &selection_end))) {
-      return "fail";
-    }
-
-    if (!use_last &&
-        (!GetStringFromJavascript(tab, "window.chrome.searchBox.value",
-                                  &value) ||
-         !GetBoolFromJavascript(tab, "window.chrome.searchBox.verbatim",
-                                &verbatim) ||
-         !GetIntFromJavascript(tab, "window.chrome.searchBox.selectionStart",
-                               &selection_start) ||
-         !GetIntFromJavascript(tab, "window.chrome.searchBox.selectionEnd",
-                               &selection_end))) {
-      return "fail";
-    }
-
-    return base::StringPrintf("%s %d %d %d %s %s %s %s %s %d %d",
-                              sv ? "true" : "false",
-                              onsubmitcalls,
-                              oncancelcalls,
-                              onchangecalls,
-                              onresizecalls ? "true" : "false",
-                              before_load_value.c_str(),
-                              before_load_verbatim ? "true" : "false",
-                              value.c_str(),
-                              verbatim ? "true" : "false",
-                              selection_start,
-                              selection_end);
-  }
-
- protected:
-  virtual void SetUpCommandLine(CommandLine* command_line) {
-    // Do not prelaunch the GPU process for these tests because it will show
-    // up in task manager but whether it appears before or after the new tab
-    // renderer process is not well defined.
-    command_line->AppendSwitch(switches::kDisableGpuProcessPrelaunch);
-  }
+        rvh, std::wstring(), WrapScript(script), result);
+  }
+
+  bool UpdateSearchState(TabContents* tab) WARN_UNUSED_RESULT {
+    content::RenderViewHost* rvh = tab->web_contents()->GetRenderViewHost();
+    return GetIntFromJS(rvh, "onchangecalls", &onchangecalls_) &&
+           GetIntFromJS(rvh, "onsubmitcalls", &onsubmitcalls_) &&
+           GetIntFromJS(rvh, "oncancelcalls", &oncancelcalls_) &&
+           GetIntFromJS(rvh, "onresizecalls", &onresizecalls_) &&
+           GetStringFromJS(rvh, "value", &value_) &&
+           GetBoolFromJS(rvh, "verbatim", &verbatim_) &&
+           GetIntFromJS(rvh, "height", &height_);
+  }
+
+  bool ExecuteScript(const std::string& script) const WARN_UNUSED_RESULT {
+    return content::ExecuteJavaScript(
+        instant()->GetPreviewContents()->web_contents()->GetRenderViewHost(),
+        std::wstring(), ASCIIToWide(script));
+  }
+
+  void SetOmniboxText(const std::string& text) const {
+    omnibox()->SetUserText(ASCIIToUTF16(text));
+  }
+
+  bool CheckVisibilityIs(TabContents* tab,
+                         bool expected) const WARN_UNUSED_RESULT {
+    bool actual = !expected;  // Purposely start with a mis-match.
+    // We can only use ASSERT_*() in a method that returns void, hence this
+    // convoluted check.
+    return GetBoolFromJS(tab->web_contents()->GetRenderViewHost(),
+                         "!document.webkitHidden", &actual) &&
+           actual == expected;
+  }
+
+  int onchangecalls_;
+  int onsubmitcalls_;
+  int oncancelcalls_;
+  int onresizecalls_;
+
+  std::string value_;
+  bool verbatim_;
+  int height_;
 };
 
-// TODO(tonyg): Add the following tests:
-// - Test that the search box API is not populated for pages other than the
-//   default search provider.
-// - Test resize events.
-
-// Verify that the onchange event is dispatched upon typing in the box.
-IN_PROC_BROWSER_TEST_F(InstantTest, MAYBE(OnChangeEvent)) {
-  ASSERT_TRUE(test_server()->Start());
-  EnableInstant();
-  SetupInstantProvider("instant.html");
-  DetermineInstantSupport();
-  SearchAndWaitForPreviewToShow();
-
-  EXPECT_TRUE(preview());
-  EXPECT_TRUE(instant()->is_displayable());
-  EXPECT_TRUE(instant()->IsCurrent());
-  EXPECT_EQ("defghi", UTF16ToUTF8(omnibox()->GetText()));
-
-  // Make sure the URL that will get committed when we press <Enter> matches
-  // that of the default search provider.
-  const TemplateURL* default_turl =
-      TemplateURLServiceFactory::GetForProfile(browser()->profile())->
-      GetDefaultSearchProvider();
-  EXPECT_TRUE(default_turl);
-  EXPECT_EQ(default_turl->url_ref().ReplaceSearchTerms(
-                TemplateURLRef::SearchTermsArgs(ASCIIToUTF16("defghi"))),
-            loader()->url().spec());
-
-  // Check that the value is reflected and onchange is called.
-  EXPECT_EQ("true 0 0 1 true d false def false 3 3",
-            GetSearchStateAsString(preview()->web_contents(), false));
-}
-
-// Verify that the onsubmit event is dispatched upon pressing <Enter>.
-IN_PROC_BROWSER_TEST_F(InstantTest, MAYBE(OnSubmitEvent)) {
-  ASSERT_TRUE(test_server()->Start());
-  EnableInstant();
-  SetupInstantProvider("instant.html");
-  DetermineInstantSupport();
-  SearchAndWaitForPreviewToShow();
-
-  EXPECT_TRUE(preview());
-  EXPECT_TRUE(instant()->is_displayable());
-  EXPECT_TRUE(instant()->IsCurrent());
-  EXPECT_EQ("defghi", UTF16ToUTF8(omnibox()->GetText()));
-
-  WebContents* preview_tab = preview()->web_contents();
+// Test that Instant is preloaded when the omnibox is focused.
+IN_PROC_BROWSER_TEST_F(InstantTest, OmniboxFocusLoadsInstant) {
+  // The omnibox gets focus before the test begins. At this time, there's no
+  // InstantController (which is only created in SetupInstant() below), so no
+  // preloading has happened yet.
+  ASSERT_NO_FATAL_FAILURE(SetupInstant("instant.html"));
+  EXPECT_FALSE(instant()->GetPreviewContents());
+
+  // Explicitly unfocus and refocus the omnibox. Since an InstantController now
+  // exists, it will preload Instant.
+  EXPECT_TRUE(ui_test_utils::BringBrowserWindowToFront(browser()));
+  ui_test_utils::ClickOnView(browser(), VIEW_ID_TAB_CONTAINER);
+  EXPECT_TRUE(ui_test_utils::IsViewFocused(browser(), VIEW_ID_TAB_CONTAINER));
+
+  browser()->window()->GetLocationBar()->FocusLocation(false);
+  EXPECT_FALSE(ui_test_utils::IsViewFocused(browser(), VIEW_ID_TAB_CONTAINER));
+
+  TabContents* preview_tab = instant()->GetPreviewContents();
   EXPECT_TRUE(preview_tab);
 
-  ASSERT_TRUE(PressEnter());
-
-  // Check that the preview has been committed.
-  EXPECT_FALSE(preview());
-  EXPECT_FALSE(instant()->is_displayable());
-  EXPECT_FALSE(instant()->IsCurrent());
-  EXPECT_EQ(preview_tab, chrome::GetActiveWebContents(browser()));
-
-  // We should have two entries. One corresponding to the page the user was
-  // first on, and one for the search page.
-  EXPECT_EQ(2, preview_tab->GetController().GetEntryCount());
-
-  // Check that the value is reflected and onsubmit is called.
-  EXPECT_EQ("true 1 0 1 true d false defghi true 3 3",
-            GetSearchStateAsString(preview_tab, true));
-
-  // Make sure the searchbox values were reset.
-  EXPECT_EQ("true 1 0 1 true d false  false 0 0",
-            GetSearchStateAsString(preview_tab, false));
-}
-
-// Verify that the oncancel event is dispatched upon losing focus.
-IN_PROC_BROWSER_TEST_F(InstantTest, DISABLED_OnCancelEvent) {
-  ASSERT_TRUE(test_server()->Start());
-  EnableInstant();
-  SetupInstantProvider("instant.html");
-  DetermineInstantSupport();
-  SearchAndWaitForPreviewToShow();
-
-  EXPECT_TRUE(preview());
-  EXPECT_TRUE(instant()->is_displayable());
-  EXPECT_TRUE(instant()->IsCurrent());
-  EXPECT_EQ("defghi", UTF16ToUTF8(omnibox()->GetText()));
-
-  WebContents* preview_tab = preview()->web_contents();
+  // Check that the page supports Instant, but it isn't showing.
+  WaitFor(chrome::NOTIFICATION_INSTANT_SUPPORT_DETERMINED);
+  EXPECT_TRUE(instant()->loader()->supports_instant());
+  EXPECT_FALSE(instant()->IsCurrent());
+  EXPECT_FALSE(instant()->is_showing());
+
+  // Adding a new tab shouldn't delete or recreate the TabContents; otherwise,
+  // what's the point of preloading?
+  AddBlankTabAndShow(browser());
+  EXPECT_EQ(preview_tab, instant()->GetPreviewContents());
+
+  // Unfocusing and refocusing the omnibox should also preserve the preview.
+  ui_test_utils::ClickOnView(browser(), VIEW_ID_TAB_CONTAINER);
+  EXPECT_TRUE(ui_test_utils::IsViewFocused(browser(), VIEW_ID_TAB_CONTAINER));
+
+  browser()->window()->GetLocationBar()->FocusLocation(false);
+  EXPECT_FALSE(ui_test_utils::IsViewFocused(browser(), VIEW_ID_TAB_CONTAINER));
+
+  EXPECT_EQ(preview_tab, instant()->GetPreviewContents());
+
+  // Doing a search should also use the same preloaded page.
+  SetOmniboxText("query");
+  WaitFor(chrome::NOTIFICATION_INSTANT_CONTROLLER_SHOWN);
+  EXPECT_TRUE(instant()->is_showing());
+  EXPECT_EQ(preview_tab, instant()->GetPreviewContents());
+}
+
+// Test that the onchange event is dispatched upon typing in the omnibox.
+IN_PROC_BROWSER_TEST_F(InstantTest, OnChangeEvent) {
+  ASSERT_NO_FATAL_FAILURE(SetupInstant("instant.html"));
+
+  // Typing "query" into the omnibox causes the first onchange event.
+  SetOmniboxText("query");
+  WaitFor(chrome::NOTIFICATION_INSTANT_CONTROLLER_SHOWN);
+
+  // The page suggested "query suggestion" is inline autocompleted into the
+  // omnibox, causing the second onchange event.
+  EXPECT_EQ(ASCIIToUTF16("query suggestion"), omnibox()->GetText());
+  EXPECT_TRUE(UpdateSearchState(instant()->GetPreviewContents()));
+  EXPECT_EQ(2, onchangecalls_);
+
+  // Change the query and confirm that another onchange is sent. Since the new
+  // query is not a prefix of the hardcoded "query suggestion", no inline
+  // autocompletion happens, and thus, no fourth onchange event.
+  SetOmniboxText("search");
+  EXPECT_TRUE(UpdateSearchState(instant()->GetPreviewContents()));
+  EXPECT_EQ(3, onchangecalls_);
+}
+
+// Test that the onsubmit event is dispatched upon pressing Enter.
+IN_PROC_BROWSER_TEST_F(InstantTest, OnSubmitEvent) {
+  ASSERT_NO_FATAL_FAILURE(SetupInstant("instant.html"));
+  SetOmniboxText("search");
+  WaitFor(chrome::NOTIFICATION_INSTANT_CONTROLLER_SHOWN);
+
+  // Stash a reference to the preview, so we can refer to it after commit.
+  TabContents* preview_tab = instant()->GetPreviewContents();
   EXPECT_TRUE(preview_tab);
 
-  ASSERT_TRUE(ui_test_utils::BringBrowserWindowToFront(browser()));
+  // The state of the searchbox before the commit.
+  EXPECT_TRUE(UpdateSearchState(preview_tab));
+  EXPECT_EQ("search", value_);
+  EXPECT_FALSE(verbatim_);
+  EXPECT_EQ(0, onsubmitcalls_);
+
+  // Before the commit, the active tab is the NTP (i.e., not Instant).
+  TabContents* active_tab = chrome::GetActiveTabContents(browser());
+  EXPECT_NE(preview_tab, active_tab);
+  EXPECT_EQ(1, active_tab->web_contents()->GetController().GetEntryCount());
+  EXPECT_EQ(std::string(chrome::kAboutBlankURL),
+            omnibox()->model()->PermanentURL().spec());
+
+  // Commit the search by pressing Enter.
+  browser()->window()->GetLocationBar()->AcceptInput();
+
+  // After the commit, Instant should not be showing, or even have a preview.
+  EXPECT_FALSE(instant()->GetPreviewContents());
+  EXPECT_FALSE(instant()->IsCurrent());
+  EXPECT_FALSE(instant()->is_showing());
+
+  // Check that the current active tab is indeed what was once the preview.
+  EXPECT_EQ(preview_tab, chrome::GetActiveTabContents(browser()));
+
+  // We should have two navigation entries, one for the NTP, and one for the
+  // Instant search that was committed.
+  EXPECT_EQ(2, preview_tab->web_contents()->GetController().GetEntryCount());
+
+  // Check that the omnibox contains the Instant URL we loaded.
+  std::string instant_url = TemplateURLServiceFactory::GetForProfile(
+      browser()->profile())->GetDefaultSearchProvider()->instant_url_ref().
+      ReplaceSearchTerms(TemplateURLRef::SearchTermsArgs(string16()));
+  EXPECT_EQ(instant_url, omnibox()->model()->PermanentURL().spec());
+
+  // Check that the searchbox API values have been reset.
+  std::string value;
+  EXPECT_TRUE(GetStringFromJS(preview_tab->web_contents()->GetRenderViewHost(),
+                              "chrome.searchBox.value", &value));
+  EXPECT_EQ("", value);
+
+  // However, the page should've correctly received the committed query.
+  EXPECT_TRUE(UpdateSearchState(preview_tab));
+  EXPECT_EQ("search", value_);
+  EXPECT_TRUE(verbatim_);
+  EXPECT_EQ(1, onsubmitcalls_);
+}
+
+// Test that the oncancel event is dispatched upon clicking on the preview.
+IN_PROC_BROWSER_TEST_F(InstantTest, OnCancelEvent) {
+  ASSERT_NO_FATAL_FAILURE(SetupInstant("instant.html"));
+  SetOmniboxText("search");
+  WaitFor(chrome::NOTIFICATION_INSTANT_CONTROLLER_SHOWN);
+
+  // Stash a reference to the preview, so we can refer to it after commit.
+  TabContents* preview_tab = instant()->GetPreviewContents();
+  EXPECT_TRUE(preview_tab);
+
+  // The state of the searchbox before the commit.
+  EXPECT_TRUE(UpdateSearchState(preview_tab));
+  EXPECT_EQ("search", value_);
+  EXPECT_FALSE(verbatim_);
+  EXPECT_EQ(0, oncancelcalls_);
+
+  // Before the commit, the active tab is the NTP (i.e., not Instant).
+  TabContents* active_tab = chrome::GetActiveTabContents(browser());
+  EXPECT_NE(preview_tab, active_tab);
+  EXPECT_EQ(1, active_tab->web_contents()->GetController().GetEntryCount());
+  EXPECT_EQ(std::string(chrome::kAboutBlankURL),
+            omnibox()->model()->PermanentURL().spec());
+
+  // Commit the search by clicking on the preview.
+  EXPECT_TRUE(ui_test_utils::BringBrowserWindowToFront(browser()));
   ui_test_utils::ClickOnView(browser(), VIEW_ID_TAB_CONTAINER);
 
-  // Check that the preview has been committed.
-  EXPECT_FALSE(preview());
-  EXPECT_FALSE(instant()->is_displayable());
-  EXPECT_FALSE(instant()->IsCurrent());
-  EXPECT_EQ(preview_tab, chrome::GetActiveWebContents(browser()));
-
-  // Check that the value is reflected and oncancel is called.
-  EXPECT_EQ("true 0 1 1 true d false def false 3 3",
-            GetSearchStateAsString(preview_tab, true));
-
-  // Make sure the searchbox values were reset.
-  EXPECT_EQ("true 0 1 1 true d false  false 0 0",
-            GetSearchStateAsString(preview_tab, false));
-}
-
-IN_PROC_BROWSER_TEST_F(InstantTest, MAYBE(SetSuggestionsArrayOfStrings)) {
-  ASSERT_TRUE(test_server()->Start());
-  EnableInstant();
-  SetupInstantProvider("instant.html");
-  DetermineInstantSupport();
-
-  ASSERT_TRUE(SetSuggestionsJavascriptArgument("['defg', 'unused']"));
-  SearchAndWaitForPreviewToShow();
-  EXPECT_EQ("defg", GetSuggestion());
-}
-
-IN_PROC_BROWSER_TEST_F(InstantTest, MAYBE(SetSuggestionsEmptyArray)) {
-  ASSERT_TRUE(test_server()->Start());
-  EnableInstant();
-  SetupInstantProvider("instant.html");
-  DetermineInstantSupport();
-
-  ASSERT_TRUE(SetSuggestionsJavascriptArgument("[]"));
-  SearchAndWaitForPreviewToShow();
-  EXPECT_EQ("", GetSuggestion());
-}
-
-IN_PROC_BROWSER_TEST_F(InstantTest, MAYBE(SetSuggestionsValidJson)) {
-  ASSERT_TRUE(test_server()->Start());
-  EnableInstant();
-  SetupInstantProvider("instant.html");
-  DetermineInstantSupport();
-
-  ASSERT_TRUE(SetSuggestionsJavascriptArgument(
-      "{suggestions:[{value:'defg'},{value:'unused'}]}"));
-  SearchAndWaitForPreviewToShow();
-  EXPECT_EQ("defg", GetSuggestion());
-}
-
-IN_PROC_BROWSER_TEST_F(InstantTest, MAYBE(SetSuggestionsInvalidSuggestions)) {
-  ASSERT_TRUE(test_server()->Start());
-  EnableInstant();
-  SetupInstantProvider("instant.html");
-  DetermineInstantSupport();
-
-  ASSERT_TRUE(SetSuggestionsJavascriptArgument("{suggestions:{value:'defg'}}"));
-  SearchAndWaitForPreviewToShow();
-  EXPECT_EQ("", GetSuggestion());
-}
-
-IN_PROC_BROWSER_TEST_F(InstantTest, MAYBE(SetSuggestionsEmptyJson)) {
-  ASSERT_TRUE(test_server()->Start());
-  EnableInstant();
-  SetupInstantProvider("instant.html");
-  DetermineInstantSupport();
-
-  ASSERT_TRUE(SetSuggestionsJavascriptArgument("{}"));
-  SearchAndWaitForPreviewToShow();
-  EXPECT_EQ("", GetSuggestion());
-}
-
-IN_PROC_BROWSER_TEST_F(InstantTest, MAYBE(SetSuggestionsEmptySuggestions)) {
-  ASSERT_TRUE(test_server()->Start());
-  EnableInstant();
-  SetupInstantProvider("instant.html");
-  DetermineInstantSupport();
-
-  ASSERT_TRUE(SetSuggestionsJavascriptArgument("{suggestions:[]}"));
-  SearchAndWaitForPreviewToShow();
-  EXPECT_EQ("", GetSuggestion());
-}
-
-IN_PROC_BROWSER_TEST_F(InstantTest, MAYBE(SetSuggestionsEmptySuggestion)) {
-  ASSERT_TRUE(test_server()->Start());
-  EnableInstant();
-  SetupInstantProvider("instant.html");
-  DetermineInstantSupport();
-
-  ASSERT_TRUE(SetSuggestionsJavascriptArgument("{suggestions:[{}]}"));
-  SearchAndWaitForPreviewToShow();
-  EXPECT_EQ("", GetSuggestion());
-}
-
-IN_PROC_BROWSER_TEST_F(InstantTest, MAYBE(InstantCompleteNever)) {
-  ASSERT_TRUE(test_server()->Start());
-  EnableInstant();
-  SetupInstantProvider("instant.html");
-  DetermineInstantSupport();
-
-  ASSERT_TRUE(SetSuggestionsJavascriptArgument(
-      "{suggestions:[{value:'defg'}],complete_behavior:'never'}"));
-  SearchAndWaitForPreviewToShow();
-  EXPECT_EQ("defg", GetSuggestion());
-
-  EXPECT_EQ(INSTANT_COMPLETE_NEVER,
-            omnibox()->model()->instant_complete_behavior());
-  EXPECT_EQ("def", UTF16ToUTF8(omnibox()->GetText()));
-}
-
-IN_PROC_BROWSER_TEST_F(InstantTest, MAYBE(InstantCompleteDelayed)) {
-  ASSERT_TRUE(test_server()->Start());
-  EnableInstant();
-  SetupInstantProvider("instant.html");
-  DetermineInstantSupport();
-
-  ASSERT_TRUE(SetSuggestionsJavascriptArgument(
-      "{suggestions:[{value:'defg'}],complete_behavior:'delayed'}"));
-  SearchAndWaitForPreviewToShow();
-  EXPECT_EQ("defg", GetSuggestion());
-
-  EXPECT_EQ(INSTANT_COMPLETE_DELAYED,
-            omnibox()->model()->instant_complete_behavior());
-  EXPECT_EQ("def", UTF16ToUTF8(omnibox()->GetText()));
-}
-
-IN_PROC_BROWSER_TEST_F(InstantTest, MAYBE(InstantCompleteNow)) {
-  ASSERT_TRUE(test_server()->Start());
-  EnableInstant();
-  SetupInstantProvider("instant.html");
-  DetermineInstantSupport();
-
-  ASSERT_TRUE(SetSuggestionsJavascriptArgument(
-      "{suggestions:[{value:'defg'}],complete_behavior:'now'}"));
-  SearchAndWaitForPreviewToShow();
-  EXPECT_EQ("defg", GetSuggestion());
-
-  EXPECT_EQ(INSTANT_COMPLETE_NOW,
-            omnibox()->model()->instant_complete_behavior());
-  EXPECT_EQ("defg", UTF16ToUTF8(omnibox()->GetText()));
-}
-
-// Verifies that instant previews aren't shown for crash URLs.
-IN_PROC_BROWSER_TEST_F(InstantTest, MAYBE(CrashUrlCancelsInstant)) {
-  ASSERT_TRUE(test_server()->Start());
-  EnableInstant();
-  SetupInstantProvider("instant.html");
-
-  omnibox()->SetUserText(ASCIIToUTF16(chrome::kChromeUICrashURL));
-  EXPECT_FALSE(preview());
-}
-
-// Tests that instant doesn't fire for intranet paths that look like searches.
+  // After the commit, Instant should not be showing, or even have a preview.
+  EXPECT_FALSE(instant()->GetPreviewContents());
+  EXPECT_FALSE(instant()->IsCurrent());
+  EXPECT_FALSE(instant()->is_showing());
+
+  // Check that the current active tab is indeed what was once the preview.
+  EXPECT_EQ(preview_tab, chrome::GetActiveTabContents(browser()));
+
+  // We should have two navigation entries, one for the NTP, and one for the
+  // Instant search that was committed.
+  EXPECT_EQ(2, preview_tab->web_contents()->GetController().GetEntryCount());
+
+  // Check that the omnibox contains the Instant URL we loaded.
+  std::string instant_url = TemplateURLServiceFactory::GetForProfile(
+      browser()->profile())->GetDefaultSearchProvider()->instant_url_ref().
+      ReplaceSearchTerms(TemplateURLRef::SearchTermsArgs(string16()));
+  EXPECT_EQ(instant_url, omnibox()->model()->PermanentURL().spec());
+
+  // Check that the searchbox API values have been reset.
+  std::string value;
+  EXPECT_TRUE(GetStringFromJS(preview_tab->web_contents()->GetRenderViewHost(),
+                              "chrome.searchBox.value", &value));
+  EXPECT_EQ("", value);
+
+  // However, the page should've correctly received the committed query.
+  EXPECT_TRUE(UpdateSearchState(preview_tab));
+  EXPECT_EQ("search", value_);
+  EXPECT_TRUE(verbatim_);
+  EXPECT_EQ(1, oncancelcalls_);
+}
+
+// Test that the onreisze event is dispatched upon typing in the omnibox.
+IN_PROC_BROWSER_TEST_F(InstantTest, OnResizeEvent) {
+  ASSERT_NO_FATAL_FAILURE(SetupInstant("instant.html"));
+
+  // This makes Instant load the preview, along with an initial onresize() (see
+  // SearchBoxExtension::PageSupportsInstant() for why).
+  instant()->OnAutocompleteGotFocus();
+  WaitFor(chrome::NOTIFICATION_INSTANT_SUPPORT_DETERMINED);
+
+  EXPECT_TRUE(instant()->GetPreviewContents());
+  EXPECT_TRUE(UpdateSearchState(instant()->GetPreviewContents()));
+  EXPECT_EQ(1, onresizecalls_);
+  EXPECT_EQ(0, height_);
+
+  // Type a query into the omnibox. This should cause an onresize() event, with
+  // a valid (non-zero) height.
+  SetOmniboxText("search");
+  WaitFor(chrome::NOTIFICATION_INSTANT_CONTROLLER_SHOWN);
+
+  EXPECT_TRUE(UpdateSearchState(instant()->GetPreviewContents()));
+  EXPECT_EQ(2, onresizecalls_);
+  EXPECT_LT(0, height_);
+}
+
+// Test that the INSTANT_COMPLETE_NOW behavior works as expected.
+IN_PROC_BROWSER_TEST_F(InstantTest, SuggestionIsCompletedNow) {
+  ASSERT_NO_FATAL_FAILURE(SetupInstant("instant.html"));
+  instant()->OnAutocompleteGotFocus();
+  WaitFor(chrome::NOTIFICATION_INSTANT_SUPPORT_DETERMINED);
+
+  // Tell the JS to request for the given behavior.
+  EXPECT_TRUE(ExecuteScript("behavior = 'now'"));
+
+  SetOmniboxText("query");
+  WaitFor(chrome::NOTIFICATION_INSTANT_CONTROLLER_SHOWN);
+
+  // Get what's showing in the omnibox, and what's highlighted.
+  string16 text = omnibox()->GetText();
+  size_t start = 0, end = 0;
+  omnibox()->GetSelectionBounds(&start, &end);
+  if (start > end)
+    std::swap(start, end);
+
+  EXPECT_EQ(ASCIIToUTF16("query suggestion"), text);
+  EXPECT_EQ(ASCIIToUTF16(" suggestion"), text.substr(start, end - start));
+  EXPECT_EQ(ASCIIToUTF16(""), omnibox()->GetInstantSuggestion());
+}
+
+// The "delayed" completion behavior is not implemented on the Mac. Strange.
+#if !defined(OS_MACOSX)
+// Test that the INSTANT_COMPLETE_DELAYED behavior works as expected.
+IN_PROC_BROWSER_TEST_F(InstantTest, SuggestionIsCompletedDelayed) {
+  ASSERT_NO_FATAL_FAILURE(SetupInstant("instant.html"));
+  instant()->OnAutocompleteGotFocus();
+  WaitFor(chrome::NOTIFICATION_INSTANT_SUPPORT_DETERMINED);
+
+  // Tell the JS to request for the given behavior.
+  EXPECT_TRUE(ExecuteScript("behavior = 'delayed'"));
+
+  SetOmniboxText("query");
+  WaitFor(chrome::NOTIFICATION_INSTANT_CONTROLLER_SHOWN);
+
+  // Get what's showing in the omnibox, and what's highlighted.
+  string16 text = omnibox()->GetText();
+  size_t start = 0, end = 0;
+  omnibox()->GetSelectionBounds(&start, &end);
+  if (start > end)
+    std::swap(start, end);
+
+  EXPECT_EQ(ASCIIToUTF16("query"), text);
+  EXPECT_EQ(ASCIIToUTF16(""), text.substr(start, end - start));
+  EXPECT_EQ(ASCIIToUTF16(" suggestion"), omnibox()->GetInstantSuggestion());
+
+  // Wait for the animation to complete, which causes the omnibox to update.
+  WaitFor(chrome::NOTIFICATION_INSTANT_CONTROLLER_UPDATED);
+
+  text = omnibox()->GetText();
+  omnibox()->GetSelectionBounds(&start, &end);
+  if (start > end)
+    std::swap(start, end);
+
+  EXPECT_EQ(ASCIIToUTF16("query suggestion"), text);
+  EXPECT_EQ(ASCIIToUTF16(" suggestion"), text.substr(start, end - start));
+  EXPECT_EQ(ASCIIToUTF16(""), omnibox()->GetInstantSuggestion());
+}
+#endif
+
+// Test that the INSTANT_COMPLETE_NEVER behavior works as expected.
+IN_PROC_BROWSER_TEST_F(InstantTest, SuggestionIsCompletedNever) {
+  ASSERT_NO_FATAL_FAILURE(SetupInstant("instant.html"));
+  instant()->OnAutocompleteGotFocus();
+  WaitFor(chrome::NOTIFICATION_INSTANT_SUPPORT_DETERMINED);
+
+  // Tell the JS to request for the given behavior.
+  EXPECT_TRUE(ExecuteScript("behavior = 'never'"));
+
+  SetOmniboxText("query");
+  WaitFor(chrome::NOTIFICATION_INSTANT_CONTROLLER_SHOWN);
+
+  // Get what's showing in the omnibox, and what's highlighted.
+  string16 text = omnibox()->GetText();
+  size_t start = 0, end = 0;
+  omnibox()->GetSelectionBounds(&start, &end);
+  if (start > end)
+    std::swap(start, end);
+
+  EXPECT_EQ(ASCIIToUTF16("query"), text);
+  EXPECT_EQ(ASCIIToUTF16(""), text.substr(start, end - start));
+  EXPECT_EQ(ASCIIToUTF16(" suggestion"), omnibox()->GetInstantSuggestion());
+}
+
+// Test that a valid suggestion is accepted.
+IN_PROC_BROWSER_TEST_F(InstantTest, SuggestionIsValidObject) {
+  ASSERT_NO_FATAL_FAILURE(SetupInstant("instant.html"));
+  instant()->OnAutocompleteGotFocus();
+  WaitFor(chrome::NOTIFICATION_INSTANT_SUPPORT_DETERMINED);
+
+  // Tell the JS to use the given suggestion.
+  EXPECT_TRUE(ExecuteScript("suggestion = [ { value: 'query completion' } ]"));
+
+  SetOmniboxText("query");
+  WaitFor(chrome::NOTIFICATION_INSTANT_CONTROLLER_SHOWN);
+
+  EXPECT_EQ(ASCIIToUTF16("query completion"), omnibox()->GetText());
+}
+
+// Test that an invalid suggestion is rejected.
+IN_PROC_BROWSER_TEST_F(InstantTest, SuggestionIsInvalidObject) {
+  ASSERT_NO_FATAL_FAILURE(SetupInstant("instant.html"));
+  instant()->OnAutocompleteGotFocus();
+  WaitFor(chrome::NOTIFICATION_INSTANT_SUPPORT_DETERMINED);
+
+  // Tell the JS to use the given suggestion.
+  EXPECT_TRUE(ExecuteScript("suggestion = { value: 'query completion' }"));
+
+  SetOmniboxText("query");
+  WaitFor(chrome::NOTIFICATION_INSTANT_CONTROLLER_SHOWN);
+
+  EXPECT_EQ(ASCIIToUTF16("query"), omnibox()->GetText());
+}
+
+// Test that various forms of empty suggestions are rejected.
+IN_PROC_BROWSER_TEST_F(InstantTest, SuggestionIsEmpty) {
+  ASSERT_NO_FATAL_FAILURE(SetupInstant("instant.html"));
+  instant()->OnAutocompleteGotFocus();
+  WaitFor(chrome::NOTIFICATION_INSTANT_SUPPORT_DETERMINED);
+
+  EXPECT_TRUE(ExecuteScript("suggestion = {}"));
+  SetOmniboxText("query1");
+  WaitFor(chrome::NOTIFICATION_INSTANT_CONTROLLER_SHOWN);
+  EXPECT_EQ(ASCIIToUTF16("query1"), omnibox()->GetText());
+
+  instant()->Hide();
+
+  EXPECT_TRUE(ExecuteScript("suggestion = []"));
+  SetOmniboxText("query2");
+  WaitFor(chrome::NOTIFICATION_INSTANT_CONTROLLER_SHOWN);
+  EXPECT_EQ(ASCIIToUTF16("query2"), omnibox()->GetText());
+
+  instant()->Hide();
+
+  EXPECT_TRUE(ExecuteScript("suggestion = [{}]"));
+  SetOmniboxText("query3");
+  WaitFor(chrome::NOTIFICATION_INSTANT_CONTROLLER_SHOWN);
+  EXPECT_EQ(ASCIIToUTF16("query3"), omnibox()->GetText());
+}
+
+// Test that Instant doesn't process URLs.
+IN_PROC_BROWSER_TEST_F(InstantTest, RejectsURLs) {
+  ASSERT_NO_FATAL_FAILURE(SetupInstant("instant.html"));
+
+  // Note that we are not actually navigating to these URLs yet. We are just
+  // typing them into the omnibox (without pressing Enter) and checking that
+  // Instant doesn't try to process them.
+  SetOmniboxText(chrome::kChromeUICrashURL);
+  EXPECT_FALSE(instant()->GetPreviewContents());
+  EXPECT_FALSE(instant()->IsCurrent());
+  EXPECT_FALSE(instant()->is_showing());
+
+  // Let's try again after creating the preview.
+  instant()->OnAutocompleteGotFocus();
+  WaitFor(chrome::NOTIFICATION_INSTANT_SUPPORT_DETERMINED);
+
+  SetOmniboxText(chrome::kChromeUIHangURL);
+  EXPECT_TRUE(instant()->GetPreviewContents());
+  EXPECT_FALSE(instant()->IsCurrent());
+  EXPECT_FALSE(instant()->is_showing());
+
+  SetOmniboxText(chrome::kChromeUIKillURL);
+  EXPECT_TRUE(instant()->GetPreviewContents());
+  EXPECT_FALSE(instant()->IsCurrent());
+  EXPECT_FALSE(instant()->is_showing());
+
+  // Make sure that the URLs were never sent to the preview page.
+  EXPECT_TRUE(UpdateSearchState(instant()->GetPreviewContents()));
+  EXPECT_EQ(0, onchangecalls_);
+  EXPECT_EQ("", value_);
+}
+
+// Test that Instant doesn't fire for intranet paths that look like searches.
 // http://crbug.com/99836
-IN_PROC_BROWSER_TEST_F(InstantTest, MAYBE(IntranetPathLooksLikeSearch)) {
-  ASSERT_TRUE(test_server()->Start());
-  EnableInstant();
-  SetupInstantProvider("instant.html");
-
-  // Unfocus the omnibox. This should delete any existing preview contents.
-  ASSERT_TRUE(ui_test_utils::BringBrowserWindowToFront(browser()));
-  ui_test_utils::ClickOnView(browser(), VIEW_ID_TAB_CONTAINER);
-  EXPECT_FALSE(preview());
+IN_PROC_BROWSER_TEST_F(InstantTest, IntranetPathLooksLikeSearch) {
+  ASSERT_NO_FATAL_FAILURE(SetupInstant("instant.html"));
 
   // Navigate to a URL that looks like a search (when the scheme is stripped).
   // It's okay if the host is bogus or the navigation fails, since we only care
-  // that instant doesn't act on it.
+  // that Instant doesn't act on it.
   ui_test_utils::NavigateToURL(browser(), GURL("http://baby/beluga"));
-  EXPECT_EQ("baby/beluga", UTF16ToUTF8(omnibox()->GetText()));
-  EXPECT_FALSE(preview());
-}
-
-// Verifies that instant previews aren't shown for non-search URLs.
-IN_PROC_BROWSER_TEST_F(InstantTest, MAYBE(ShowPreviewNonSearch)) {
-  ASSERT_TRUE(test_server()->Start());
-  EnableInstant();
-  SetupInstantProvider("instant.html");
-
-  GURL url(test_server()->GetURL("files/empty.html"));
-  omnibox()->SetUserText(UTF8ToUTF16(url.spec()));
-  EXPECT_FALSE(preview());
-}
-
-// Transition from non-search to search and make sure everything works.
-IN_PROC_BROWSER_TEST_F(InstantTest, MAYBE(NonSearchToSearch)) {
-  ASSERT_TRUE(test_server()->Start());
-  EnableInstant();
-  SetupInstantProvider("instant.html");
-
-  // Load a non-search URL.
-  GURL url(test_server()->GetURL("files/empty.html"));
-  omnibox()->SetUserText(UTF8ToUTF16(url.spec()));
-  EXPECT_FALSE(preview());
-
-  // Now type in some search text.
-  DetermineInstantSupport();
-
-  // We should now have a preview, but it shouldn't be showing yet, because we
-  // haven't gotten back suggestions.
-  EXPECT_TRUE(preview());
-  EXPECT_FALSE(loader()->ready());
-  EXPECT_FALSE(instant()->is_displayable());
-  EXPECT_FALSE(instant()->IsCurrent());
-
-  // Reset the user text so that the page is told the text changed.
-  //
-  // Typing into the omnibox sends onchange() to the page, which responds with
-  // suggestions, which causes the preview to be shown. However, when we called
-  // DetermineInstantSupport(), the resulting onchange was dropped on the floor
-  // because the page wasn't loaded yet. This is fine (the user may type before
-  // the page loads too). To handle this, we explicitly call onchange after the
-  // page loads (see initScript in searchbox_extension.cc). The search provider
-  // used in this test (instant.html) doesn't support initScript, so we have to
-  // trigger an onchange ourselves.
-  SearchAndWaitForPreviewToShow();
-
-  // We should now be showing the preview.
-  EXPECT_TRUE(preview());
-  EXPECT_TRUE(loader()->ready());
-  EXPECT_TRUE(instant()->is_displayable());
+  EXPECT_EQ(ASCIIToUTF16("baby/beluga"), omnibox()->GetText());
+  EXPECT_FALSE(instant()->GetPreviewContents());
+}
+
+// Test that transitions between searches and non-searches work as expected.
+IN_PROC_BROWSER_TEST_F(InstantTest, TransitionsBetweenSearchAndURL) {
+  ASSERT_NO_FATAL_FAILURE(SetupInstant("instant.html"));
+
+  // Type a search, but without waiting for the page to load, type a URL.
+  SetOmniboxText("query");
+  SetOmniboxText("http://monstrous/nightmare");
+
+  // Wait for the page to load.
+  WaitFor(chrome::NOTIFICATION_INSTANT_SUPPORT_DETERMINED);
+  EXPECT_TRUE(instant()->GetPreviewContents());
+  EXPECT_FALSE(instant()->IsCurrent());
+  EXPECT_FALSE(instant()->is_showing());
+  EXPECT_TRUE(UpdateSearchState(instant()->GetPreviewContents()));
+  EXPECT_EQ(1, onchangecalls_);
+  EXPECT_EQ("query", value_);
+
+  // Type a search. Instant should show.
+  SetOmniboxText("search");
+  WaitFor(chrome::NOTIFICATION_INSTANT_CONTROLLER_SHOWN);
+  EXPECT_TRUE(instant()->GetPreviewContents());
   EXPECT_TRUE(instant()->IsCurrent());
-
-  content::RenderWidgetHostView* rwhv =
-      preview()->web_contents()->GetRenderWidgetHostView();
-  EXPECT_TRUE(rwhv);
-  EXPECT_TRUE(rwhv->IsShowing());
-}
-
-// Transition from search to non-search and make sure instant isn't displayable.
-// See bug http://crbug.com/100368 for details.
-IN_PROC_BROWSER_TEST_F(InstantTest, MAYBE(SearchToNonSearch)) {
-  ASSERT_TRUE(test_server()->Start());
-  EnableInstant();
-  SetupInstantProvider("instant.html");
-
-  content::WindowedNotificationObserver instant_support_observer(
-      chrome::NOTIFICATION_INSTANT_SUPPORT_DETERMINED,
-      content::NotificationService::AllSources());
-
-  // Type in some search text.
-  omnibox()->SetUserText(ASCIIToUTF16("def"));
-
-  // Load a non search URL. Don't wait for the preview to navigate. It'll still
-  // end up loading in the background.
-  GURL url(test_server()->GetURL("files/empty.html"));
-  omnibox()->SetUserText(UTF8ToUTF16(url.spec()));
-
-  instant_support_observer.Wait();
-
-  // We should now have a preview, but it shouldn't be showing yet.
-  EXPECT_TRUE(preview());
-  EXPECT_FALSE(loader()->ready());
-  EXPECT_FALSE(instant()->is_displayable());
-  EXPECT_FALSE(instant()->IsCurrent());
-
-  // Send onchange so that the page sends up suggestions. See the comments in
-  // NonSearchToSearch for why this is needed.
-  ASSERT_TRUE(content::ExecuteJavaScript(
-      preview()->web_contents()->GetRenderViewHost(), std::wstring(),
-      L"window.chrome.searchBox.onchange();"));
-  ASSERT_TRUE(WaitForMessageToBeProcessedByRenderer());
-
-  // Instant should be active, but not displaying.
-  EXPECT_TRUE(preview());
-  EXPECT_TRUE(loader()->ready());
-  EXPECT_FALSE(instant()->is_displayable());
-  EXPECT_FALSE(instant()->IsCurrent());
-}
-
-// Makes sure that if the server doesn't support the instant API we don't show
-// anything.
-IN_PROC_BROWSER_TEST_F(InstantTest, MAYBE(SearchServerDoesntSupportInstant)) {
-  ASSERT_TRUE(test_server()->Start());
-  EnableInstant();
-  SetupInstantProvider("empty.html");
-
-  content::WindowedNotificationObserver tab_closed_observer(
-      content::NOTIFICATION_WEB_CONTENTS_DESTROYED,
-      content::NotificationService::AllSources());
-
-  omnibox()->SetUserText(ASCIIToUTF16("d"));
-  EXPECT_TRUE(preview());
-
-  // When the response comes back that the page doesn't support instant the tab
-  // should be closed.
-  tab_closed_observer.Wait();
-  EXPECT_FALSE(preview());
-}
-
-// Verifies transitioning from loading a non-search string to a search string
-// with the provider not supporting instant works (meaning we don't display
-// anything).
-IN_PROC_BROWSER_TEST_F(InstantTest,
-                       MAYBE(NonSearchToSearchDoesntSupportInstant)) {
-  ASSERT_TRUE(test_server()->Start());
-  EnableInstant();
-  SetupInstantProvider("empty.html");
-
-  GURL url(test_server()->GetURL("files/empty.html"));
-  omnibox()->SetUserText(UTF8ToUTF16(url.spec()));
-  EXPECT_FALSE(preview());
-
-  content::WindowedNotificationObserver tab_closed_observer(
-      content::NOTIFICATION_WEB_CONTENTS_DESTROYED,
-      content::NotificationService::AllSources());
-
-  // Now type in some search text.
-  omnibox()->SetUserText(ASCIIToUTF16("d"));
-  EXPECT_TRUE(preview());
-
-  // When the response comes back that the page doesn't support instant the tab
-  // should be closed.
-  tab_closed_observer.Wait();
-  EXPECT_FALSE(preview());
-}
-
-// Verifies the page was told a non-zero height.
-IN_PROC_BROWSER_TEST_F(InstantTest, MAYBE(ValidHeight)) {
-  ASSERT_TRUE(test_server()->Start());
-  EnableInstant();
-  SetupInstantProvider("instant.html");
-  DetermineInstantSupport();
-  SearchAndWaitForPreviewToShow();
-
-  int height = -1;
-
-  // searchBox height is not yet set during initial load.
-  ASSERT_TRUE(GetIntFromJavascript(preview()->web_contents(),
-      "window.beforeLoadSearchBox.height", &height));
-  EXPECT_EQ(0, height);
-
-  // searchBox height is available by the time the page loads.
-  ASSERT_TRUE(GetIntFromJavascript(preview()->web_contents(),
-      "window.chrome.searchBox.height", &height));
-  EXPECT_GT(height, 0);
-}
-
-// Make sure the renderer doesn't crash if javascript is blocked.
-IN_PROC_BROWSER_TEST_F(InstantTest, MAYBE(DontCrashOnBlockedJS)) {
+  EXPECT_TRUE(instant()->is_showing());
+  EXPECT_TRUE(UpdateSearchState(instant()->GetPreviewContents()));
+  EXPECT_EQ(2, onchangecalls_);
+
+  // Type another URL. The preview should be hidden.
+  SetOmniboxText("http://terrible/terror");
+  EXPECT_TRUE(instant()->GetPreviewContents());
+  EXPECT_FALSE(instant()->IsCurrent());
+  EXPECT_FALSE(instant()->is_showing());
+  EXPECT_TRUE(UpdateSearchState(instant()->GetPreviewContents()));
+  EXPECT_EQ(2, onchangecalls_);
+
+  // Type the same search as before. The preview should show, but no onchange()
+  // is sent, since query hasn't changed.
+  SetOmniboxText("search");
+  EXPECT_TRUE(instant()->GetPreviewContents());
+  EXPECT_TRUE(instant()->IsCurrent());
+  EXPECT_TRUE(instant()->is_showing());
+  EXPECT_TRUE(UpdateSearchState(instant()->GetPreviewContents()));
+  EXPECT_EQ(2, onchangecalls_);
+}
+
+// Test that Instant can't be fooled into committing a URL.
+IN_PROC_BROWSER_TEST_F(InstantTest, DoesNotCommitURLs) {
+  ASSERT_NO_FATAL_FAILURE(SetupInstant("instant.html"));
+  EXPECT_TRUE(ui_test_utils::BringBrowserWindowToFront(browser()));
+
+  // Type a URL. No Instant.
+  SetOmniboxText("http://deadly/nadder");
+  EXPECT_FALSE(instant()->GetPreviewContents());
+
+  // Unfocus and refocus the omnibox.
+  ui_test_utils::ClickOnView(browser(), VIEW_ID_TAB_CONTAINER);
+  EXPECT_TRUE(ui_test_utils::IsViewFocused(browser(), VIEW_ID_TAB_CONTAINER));
+  browser()->window()->GetLocationBar()->FocusLocation(false);
+
+  // The omnibox text hasn't changed, but the preview should've preloaded due
+  // to the omnibox getting focus. It still shouldn't be showing.
+  EXPECT_EQ(ASCIIToUTF16("http://deadly/nadder"), omnibox()->GetText());
+  TabContents* preview_tab = instant()->GetPreviewContents();
+  EXPECT_TRUE(preview_tab);
+  EXPECT_FALSE(instant()->IsCurrent());
+  EXPECT_FALSE(instant()->is_showing());
+
+  // Commit the URL. The omnibox should reflect the URL minus the scheme.
+  browser()->window()->GetLocationBar()->AcceptInput();
+  TabContents* active_tab = chrome::GetActiveTabContents(browser());
+  EXPECT_NE(preview_tab, active_tab);
+  EXPECT_EQ(ASCIIToUTF16("deadly/nadder"), omnibox()->GetText());
+
+  // Instant shouldn't have done anything.
+  EXPECT_EQ(preview_tab, instant()->GetPreviewContents());
+  EXPECT_FALSE(instant()->IsCurrent());
+  EXPECT_FALSE(instant()->is_showing());
+
+  // Let's try again, using a slightly different approach.
+
+  // Type a query. This causes the preview to be shown.
+  browser()->window()->GetLocationBar()->FocusLocation(false);
+  SetOmniboxText("query");
+  WaitFor(chrome::NOTIFICATION_INSTANT_CONTROLLER_SHOWN);
+
+  // Type a URL. This causes the preview to be hidden.
+  SetOmniboxText("http://hideous/zippleback");
+  EXPECT_FALSE(instant()->is_showing());
+
+  // Pretend the omnibox got focus. It already had focus, so we are just trying
+  // to tickle a different code path.
+  instant()->OnAutocompleteGotFocus();
+
+  // Commit the URL. As before, check that Instant wasn't committed.
+  browser()->window()->GetLocationBar()->AcceptInput();
+  EXPECT_EQ(active_tab, chrome::GetActiveTabContents(browser()));
+  EXPECT_NE(preview_tab, active_tab);
+  EXPECT_EQ(ASCIIToUTF16("hideous/zippleback"), omnibox()->GetText());
+
+  // As before, Instant shouldn't have done anything.
+  EXPECT_EQ(preview_tab, instant()->GetPreviewContents());
+  EXPECT_FALSE(instant()->IsCurrent());
+  EXPECT_FALSE(instant()->is_showing());
+}
+
+// Test that a non-Instant search provider shows no previews.
+IN_PROC_BROWSER_TEST_F(InstantTest, NonInstantSearchProvider) {
+  ASSERT_NO_FATAL_FAILURE(SetupInstant("empty.html"));
+
+  // Type a query. Instant will load the search provider.
+  SetOmniboxText("query");
+  EXPECT_TRUE(instant()->GetPreviewContents());
+
+  // When the response comes back, Instant will destroy the non-Instant page.
+  WaitFor(chrome::NOTIFICATION_INSTANT_SUPPORT_DETERMINED);
+  EXPECT_FALSE(instant()->GetPreviewContents());
+}
+
+// Test that the renderer doesn't crash if JavaScript is blocked.
+IN_PROC_BROWSER_TEST_F(InstantTest, NoCrashOnBlockedJS) {
   browser()->profile()->GetHostContentSettingsMap()->SetDefaultContentSetting(
       CONTENT_SETTINGS_TYPE_JAVASCRIPT, CONTENT_SETTING_BLOCK);
-  ASSERT_TRUE(test_server()->Start());
-  EnableInstant();
-  SetupInstantProvider("instant.html");
-
-  // Wait for notification that the instant API has been determined. As long as
+  ASSERT_NO_FATAL_FAILURE(SetupInstant("instant.html"));
+
+  // Wait for notification that the Instant API has been determined. As long as
   // we get the notification we're good (the renderer didn't crash).
-  DetermineInstantSupport();
-}
-
-// Makes sure window.chrome.searchbox doesn't persist when a new page is loaded.
-IN_PROC_BROWSER_TEST_F(InstantTest, MAYBE(DontPersistSearchbox)) {
-  ASSERT_TRUE(test_server()->Start());
-  EnableInstant();
-  SetupInstantProvider("instant.html");
-  DetermineInstantSupport();
-  SearchAndWaitForPreviewToShow();
-
-  std::string value;
-  ASSERT_TRUE(GetStringFromJavascript(preview()->web_contents(),
-      "window.chrome.searchBox.value", &value));
-  EXPECT_EQ("def", value);
+  instant()->OnAutocompleteGotFocus();
+  WaitFor(chrome::NOTIFICATION_INSTANT_SUPPORT_DETERMINED);
+}
+
+// Test that the preview and active tab's visibility states are set correctly.
+IN_PROC_BROWSER_TEST_F(InstantTest, PageVisibility) {
+  ASSERT_NO_FATAL_FAILURE(SetupInstant("instant.html"));
+  instant()->OnAutocompleteGotFocus();
+  WaitFor(chrome::NOTIFICATION_INSTANT_SUPPORT_DETERMINED);
+
+  TabContents* active_tab = chrome::GetActiveTabContents(browser());
+  TabContents* preview_tab = instant()->GetPreviewContents();
+
+  // Inititally, the active tab is showing; the preview is not.
+  EXPECT_TRUE(CheckVisibilityIs(active_tab, true));
+  EXPECT_TRUE(CheckVisibilityIs(preview_tab, false));
+
+  // Type a query and wait for Instant to show.
+  SetOmniboxText("search");
+  WaitFor(chrome::NOTIFICATION_INSTANT_CONTROLLER_SHOWN);
+  EXPECT_TRUE(CheckVisibilityIs(active_tab, false));
+  EXPECT_TRUE(CheckVisibilityIs(preview_tab, true));
+
+  // Deleting the omnibox text should hide the preview.
+  SetOmniboxText("");
+  EXPECT_TRUE(CheckVisibilityIs(active_tab, true));
+  EXPECT_TRUE(CheckVisibilityIs(preview_tab, false));
+
+  // Typing a query should show the preview again.
+  SetOmniboxText("search");
+  EXPECT_TRUE(CheckVisibilityIs(active_tab, false));
+  EXPECT_TRUE(CheckVisibilityIs(preview_tab, true));
 
   // Commit the preview.
-  ASSERT_TRUE(PressEnter());
-  EXPECT_FALSE(preview());
-
-  // The searchBox actually gets cleared on commit.
-  ASSERT_TRUE(GetStringFromJavascript(chrome::GetActiveWebContents(browser()),
-      "window.chrome.searchBox.value", &value));
-  EXPECT_EQ("", value);
-
-  // Navigate to a new URL. The searchBox values should stay cleared.
-  ui_test_utils::NavigateToURL(
-      browser(), test_server()->GetURL("files/empty.html"));
-
-  ASSERT_TRUE(GetStringFromJavascript(chrome::GetActiveWebContents(browser()),
-      "window.chrome.searchBox.value", &value));
-  EXPECT_EQ("", value);
-}
-
-// Tests that instant search is preloaded whenever the omnibox gets focus.
-// PreloadsInstant fails on linux_chromeos trybots all the time, possibly
-// because of http://crbug.com/80118.
-#if defined(OS_CHROMEOS) || defined(OS_MACOSX)
-IN_PROC_BROWSER_TEST_F(InstantTest, DISABLED_PreloadsInstant) {
-#else
-IN_PROC_BROWSER_TEST_F(InstantTest, MAYBE(PreloadsInstant)) {
-#endif
-  ASSERT_TRUE(test_server()->Start());
-  EnableInstant();
-  SetupInstantProvider("instant.html");
-
-  // The omnibox gets focus before the test begins. At that time, there was no
-  // instant controller (which was only created after EnableInstant()), so no
-  // preloading happened. Unfocus the omnibox with ClickOnView(), so that when
-  // we focus it again, the controller will preload instant search.
-  ASSERT_TRUE(ui_test_utils::BringBrowserWindowToFront(browser()));
-  ui_test_utils::ClickOnView(browser(), VIEW_ID_TAB_CONTAINER);
-
-  // Verify that there is no preview.
-  EXPECT_FALSE(preview());
-
-  // Focusing the omnibox should cause instant to be preloaded.
-  content::WindowedNotificationObserver instant_support_observer(
-      chrome::NOTIFICATION_INSTANT_SUPPORT_DETERMINED,
-      content::NotificationService::AllSources());
-  browser()->window()->GetLocationBar()->FocusLocation(false);
-  instant_support_observer.Wait();
-
-  // Instant should have a preview, but not display it.
-  EXPECT_TRUE(preview());
-  EXPECT_FALSE(instant()->is_displayable());
-  EXPECT_FALSE(instant()->IsCurrent());
-  ASSERT_TRUE(CheckVisibilityIs(preview()->web_contents(), false));
-
-  // Adding a new tab shouldn't delete (or recreate) the TabContents.
-  TabContents* preview_tab = preview();
-  AddBlankTabAndShow(browser());
-  EXPECT_EQ(preview_tab, preview());
-
-  // Doing a search should still use the same loader for the preview.
-  SearchAndWaitForPreviewToShow();
-  EXPECT_EQ(preview_tab, preview());
-
-  // Verify that the preview is in fact showing instant search.
-  EXPECT_TRUE(instant()->is_displayable());
-  EXPECT_TRUE(instant()->IsCurrent());
-  ASSERT_TRUE(CheckVisibilityIs(preview()->web_contents(), true));
-}
-
-// Tests that the instant search page's visibility is set correctly.
-IN_PROC_BROWSER_TEST_F(InstantTest, MAYBE(PageVisibilityTest)) {
-  ASSERT_TRUE(test_server()->Start());
-  EnableInstant();
-  SetupInstantProvider("instant.html");
-
-  // Initially navigate to the empty page which should be visible.
-  ui_test_utils::NavigateToURL(browser(), test_server()->GetURL(""));
-  WebContents* initial_contents = chrome::GetActiveWebContents(browser());
-
-  ASSERT_TRUE(CheckVisibilityIs(initial_contents, true));
-
-  // Type a search term and wait for the preview to appear.
-  browser()->window()->GetLocationBar()->FocusLocation(false);
-  DetermineInstantSupport();
-  SearchAndWaitForPreviewToShow();
-  WebContents* preview_contents = preview()->web_contents();
-
-  ASSERT_TRUE(CheckVisibilityIs(preview_contents, true));
-  ASSERT_TRUE(CheckVisibilityIs(initial_contents, false));
-
-  // Deleting the user text should hide the preview.
-  omnibox()->SetUserText(string16());
-  ASSERT_TRUE(CheckVisibilityIs(preview_contents, false));
-  ASSERT_TRUE(CheckVisibilityIs(initial_contents, true));
-
-  // Set the user text back and we should see the preview again.
-  omnibox()->SetUserText(ASCIIToUTF16("def"));
-  ASSERT_TRUE(CheckVisibilityIs(preview_contents, true));
-  ASSERT_TRUE(CheckVisibilityIs(initial_contents, false));
-
-  // Commit the preview.
-  ASSERT_TRUE(PressEnter());
-  EXPECT_EQ(preview_contents, chrome::GetActiveWebContents(browser()));
-  ASSERT_TRUE(CheckVisibilityIs(preview_contents, true));
-}
-
-// Tests that the task manager identifies instant's preview tab correctly.
-IN_PROC_BROWSER_TEST_F(InstantTest, MAYBE(TaskManagerPrefix)) {
+  browser()->window()->GetLocationBar()->AcceptInput();
+  EXPECT_EQ(preview_tab, chrome::GetActiveTabContents(browser()));
+  EXPECT_TRUE(CheckVisibilityIs(preview_tab, true));
+}
+
+// Test that the task manager identifies Instant's preview tab correctly.
+IN_PROC_BROWSER_TEST_F(InstantTest, TaskManagerPrefix) {
   // The browser starts with one new tab, so the task manager should have two
   // rows initially, one for the browser process and one for tab's renderer.
   TaskManagerModel* task_manager = TaskManager::GetInstance()->model();
   task_manager->StartUpdating();
   TaskManagerBrowserTestUtil::WaitForResourceChange(2);
 
-  ASSERT_TRUE(test_server()->Start());
-  EnableInstant();
-  SetupInstantProvider("instant.html");
-  DetermineInstantSupport();
-  SearchAndWaitForPreviewToShow();
-
-  // Now there should be three rows, the third being the instant preview.
+  ASSERT_NO_FATAL_FAILURE(SetupInstant("instant.html"));
+  instant()->OnAutocompleteGotFocus();
+  WaitFor(chrome::NOTIFICATION_INSTANT_SUPPORT_DETERMINED);
+
+  // Now there should be three rows, the third being the Instant preview.
   TaskManagerBrowserTestUtil::WaitForResourceChange(3);
   string16 prefix = l10n_util::GetStringFUTF16(
       IDS_TASK_MANAGER_INSTANT_PREVIEW_PREFIX, string16());
   string16 title = task_manager->GetResourceTitle(2);
   EXPECT_TRUE(StartsWith(title, prefix, true)) << title << " vs " << prefix;
 }
+
+void HistoryQueryDone(base::RunLoop* run_loop,
+                      bool* result,
+                      HistoryService::Handle  /* handle */,
+                      bool success,
+                      const history::URLRow*  /* urlrow */,
+                      history::VisitVector*  /* visitvector */) {
+  *result = success;
+  run_loop->Quit();
+}
+
+void KeywordQueryDone(base::RunLoop* run_loop,
+                      std::vector<string16>* result,
+                      HistoryService::Handle  /* handle */,
+                      std::vector<history::KeywordSearchTermVisit>* terms) {
+  for (size_t i = 0; i < terms->size(); ++i)
+    result->push_back((*terms)[i].term);
+  run_loop->Quit();
+}
+
+// Test that the Instant page load is not added to history.
+IN_PROC_BROWSER_TEST_F(InstantTest, History) {
+  ASSERT_NO_FATAL_FAILURE(SetupInstant("instant.html"));
+  instant()->OnAutocompleteGotFocus();
+  WaitFor(chrome::NOTIFICATION_INSTANT_SUPPORT_DETERMINED);
+
+  const TemplateURL* template_url = TemplateURLServiceFactory::GetForProfile(
+      browser()->profile())->GetDefaultSearchProvider();
+
+  // |instant_url| is the URL Instant loads. |search_url| is the fake URL we
+  // enter into history for search terms extraction to work correctly.
+  std::string search_url = template_url->url_ref().ReplaceSearchTerms(
+      TemplateURLRef::SearchTermsArgs(ASCIIToUTF16("search")));
+  std::string instant_url = template_url->instant_url_ref().ReplaceSearchTerms(
+      TemplateURLRef::SearchTermsArgs(string16()));
+
+  HistoryService* history = HistoryServiceFactory::GetForProfile(
+      browser()->profile(), Profile::EXPLICIT_ACCESS);
+  ui_test_utils::WaitForHistoryToLoad(history);
+
+  // Perform a search.
+  SetOmniboxText("search");
+  WaitFor(chrome::NOTIFICATION_INSTANT_CONTROLLER_SHOWN);
+  EXPECT_EQ(instant_url, instant()->loader()->instant_url());
+
+  // Commit the search.
+  browser()->window()->GetLocationBar()->AcceptInput();
+
+  bool found = false;
+  CancelableRequestConsumer consumer;
+
+  // The fake search URL should be in history.
+  base::RunLoop run_loop1;
+  history->QueryURL(GURL(search_url), false, &consumer,
+                    base::Bind(&HistoryQueryDone, &run_loop1, &found));
+  run_loop1.Run();
+  EXPECT_TRUE(found);
+
+  // The Instant URL should not be in history.
+  base::RunLoop run_loop2;
+  history->QueryURL(GURL(instant_url), false, &consumer,
+                    base::Bind(&HistoryQueryDone, &run_loop2, &found));
+  run_loop2.Run();
+  EXPECT_FALSE(found);
+
+  // The search terms should have been extracted into history.
+  base::RunLoop run_loop3;
+  std::vector<string16> queries;
+  history->GetMostRecentKeywordSearchTerms(template_url->id(),
+      ASCIIToUTF16("s"), 1, &consumer,
+      base::Bind(&KeywordQueryDone, &run_loop3, &queries));
+  run_loop3.Run();
+  ASSERT_TRUE(queries.size());
+  EXPECT_EQ(ASCIIToUTF16("search"), queries[0]);
+}
+
+// On Windows, the call to NewEmptyWindow() fails the "GetBackingStore called
+// while hidden" DCHECK(). It's not clear why; maybe because the active tab is
+// in a hidden state when the Instant preview is showing, and somebody's trying
+// to get its backing store?
+#if !defined(OS_WIN)
+// Test that creating a new window hides any currently showing Instant preview.
+IN_PROC_BROWSER_TEST_F(InstantTest, NewWindowDismissesInstant) {
+  ASSERT_NO_FATAL_FAILURE(SetupInstant("instant.html"));
+  instant()->OnAutocompleteGotFocus();
+  WaitFor(chrome::NOTIFICATION_INSTANT_SUPPORT_DETERMINED);
+
+  EXPECT_TRUE(ui_test_utils::BringBrowserWindowToFront(browser()));
+  SetOmniboxText("search");
+  WaitFor(chrome::NOTIFICATION_INSTANT_CONTROLLER_SHOWN);
+  EXPECT_TRUE(instant()->GetPreviewContents());
+  EXPECT_TRUE(instant()->IsCurrent());
+  EXPECT_TRUE(instant()->is_showing());
+
+  content::WindowedNotificationObserver observer(
+      chrome::NOTIFICATION_INSTANT_CONTROLLER_HIDDEN,
+      content::NotificationService::AllSources());
+  chrome::NewEmptyWindow(browser()->profile());
+  observer.Wait();
+  EXPECT_TRUE(instant()->GetPreviewContents());
+  EXPECT_FALSE(instant()->IsCurrent());
+  EXPECT_FALSE(instant()->is_showing());
+}
+#endif