Test that OmniboxViewViews has opaque background.

chrome/browser/ui/views/omnibox/omnibox_view_views_browsertest.cc

 // Copyright (c) 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/ui/views/omnibox/omnibox_view_views.h"
 
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_commands.h"
 #include "chrome/browser/ui/browser_window.h"
 #include "chrome/browser/ui/omnibox/location_bar.h"
 #include "chrome/browser/ui/omnibox/omnibox_popup_model.h"
 #include "chrome/browser/ui/view_ids.h"
 #include "chrome/browser/ui/views/frame/browser_view.h"
+#include "chrome/browser/ui/views/location_bar/location_bar_view.h"
 #include "chrome/test/base/in_process_browser_test.h"
 #include "chrome/test/base/interactive_test_utils.h"
 #include "grit/generated_resources.h"
 #include "ui/aura/test/event_generator.h"
 #include "ui/aura/window.h"
 #include "ui/aura/window_tree_host.h"
 #include "ui/base/clipboard/clipboard.h"
 #include "ui/base/clipboard/scoped_clipboard_writer.h"
 #include "ui/base/test/ui_controls.h"
 #include "ui/events/event_processor.h"
@@ skipping 202 matching lines @@
   EXPECT_FALSE(omnibox_view->IsSelectAll());
 
   // Pressing tab to focus the omnibox should select all text.
   while (!ui_test_utils::IsViewFocused(browser(), VIEW_ID_OMNIBOX)) {
     ASSERT_TRUE(ui_test_utils::SendKeyPressSync(browser(), ui::VKEY_TAB,
                                                 false, false, false, false));
   }
   EXPECT_TRUE(ui_test_utils::IsViewFocused(browser(), VIEW_ID_OMNIBOX));
   EXPECT_TRUE(omnibox_view->IsSelectAll());
 }
+
+IN_PROC_BROWSER_TEST_F(OmniboxViewViewsTest, BackgroundIsOpaque) {
+  // The omnibox text should be rendered on an opaque background. Otherwise, we
+  // can't use subpixel rendering.
+  BrowserWindowTesting* window = browser()->window()->GetBrowserWindowTesting();
+  ASSERT_TRUE(window);
+  OmniboxViewViews* view = window->GetLocationBarView()->omnibox_view();
+  ASSERT_TRUE(view);
+  EXPECT_FALSE(view->GetRenderText()->background_is_transparent());
+}