[M50 Merge] Disable Find-In-Page buttons when no text is entered

chrome/browser/ui/views/find_bar_views_interactive_uitest.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/macros.h"
 #include "base/strings/string_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "build/build_config.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/ui/browser.h"
@@ skipping 144 matching lines @@
       ui_test_utils::IsViewFocused(browser(),
       VIEW_ID_FIND_IN_PAGE_TEXT_FIELD));
 
   // The textfield should be focused after clicking on any button.
   ui_test_utils::ClickOnView(browser(), VIEW_ID_FIND_IN_PAGE_NEXT_BUTTON);
   EXPECT_TRUE(
       ui_test_utils::IsViewFocused(browser(),
       VIEW_ID_FIND_IN_PAGE_TEXT_FIELD));
 }
 
+IN_PROC_BROWSER_TEST_F(FindInPageTest, ButtonsDisabledWithoutText) {
+  ASSERT_TRUE(embedded_test_server()->Start());
+  // Make sure Chrome is in the foreground, otherwise sending input
+  // won't do anything and the test will hang.
+  ASSERT_TRUE(ui_test_utils::BringBrowserWindowToFront(browser()));
+  // First we navigate to any page.
+  ui_test_utils::NavigateToURL(browser(),
+                               embedded_test_server()->GetURL(kSimplePage));
+  // Show the Find bar.
+  browser()->GetFindBarController()->Show();
+  EXPECT_TRUE(
+      ui_test_utils::IsViewFocused(browser(), VIEW_ID_FIND_IN_PAGE_TEXT_FIELD));
+
+  // The buttons should be disabled as there is no text entered in the find bar
+  // and no search has been issued yet.
+  ASSERT_TRUE(ui_test_utils::SendKeyPressSync(browser(), ui::VKEY_TAB, false,
+                                              false, false, false));
+  EXPECT_TRUE(ui_test_utils::IsViewFocused(browser(),
+                                           VIEW_ID_FIND_IN_PAGE_CLOSE_BUTTON));
+}
+
 #if defined(OS_LINUX) && !defined(OS_CHROMEOS) && defined(USE_AURA)
 // TODO(erg): linux_aura bringup: http://crbug.com/163931
 #define MAYBE_FocusRestore DISABLED_FocusRestore
 #else
 #define MAYBE_FocusRestore FocusRestore
 #endif
 
 // Flaky because the test server fails to start? See: http://crbug.com/96594.
 IN_PROC_BROWSER_TEST_F(FindInPageTest, MAYBE_FocusRestore) {
   ASSERT_TRUE(embedded_test_server()->Start());
@@ skipping 332 matching lines @@
   ui_test_utils::UrlLoadObserver observer(
       GURL("about:blank"), content::NotificationService::AllSources());
 
   // Send Ctrl-Enter, should cause navigation to about:blank.
   ASSERT_TRUE(ui_test_utils::SendKeyPressSync(
       browser(), ui::VKEY_RETURN, true, false, false, false));
 
   observer.Wait();
 }
 #endif