Introduce InfoBarTabService API.

chrome/browser/extensions/extension_install_ui_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/string_util.h"
 #include "chrome/browser/extensions/extension_browsertest.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/theme_installed_infobar_delegate.h"
 #include "chrome/browser/infobars/infobar_tab_helper.h"
 #include "chrome/browser/profiles/profile.h"
@@ skipping 10 matching lines @@
 using extensions::Extension;
 
 class ExtensionInstallUIBrowserTest : public ExtensionBrowserTest {
  public:
   // Checks that a theme info bar is currently visible and issues an undo to
   // revert to the previous theme.
   void VerifyThemeInfoBarAndUndoInstall() {
     TabContents* tab = chrome::GetActiveTabContents(browser());
     ASSERT_TRUE(tab);
     InfoBarTabHelper* infobar_helper = tab->infobar_tab_helper();
-    ASSERT_EQ(1U, infobar_helper->infobar_count());
+    ASSERT_EQ(1U, infobar_helper->GetInfoBarCount());
     ConfirmInfoBarDelegate* delegate = infobar_helper->
         GetInfoBarDelegateAt(0)->AsConfirmInfoBarDelegate();
     ASSERT_TRUE(delegate);
     delegate->Cancel();
-    ASSERT_EQ(0U, infobar_helper->infobar_count());
+    ASSERT_EQ(0U, infobar_helper->GetInfoBarCount());
   }
 
   const Extension* GetTheme() const {
     return ThemeServiceFactory::GetThemeForProfile(browser()->profile());
   }
 };
 
 #if defined(OS_LINUX)
 // Fails consistently on bot chromium.chromiumos \ Linux.
 // See: http://crbug.com/120647.
@@ skipping 102 matching lines @@
   if (NewTabUI::ShouldShowApps()) {
     EXPECT_EQ(num_normal_tabs + 1, browser()->tab_count());
     WebContents* web_contents = chrome::GetActiveWebContents(browser());
     ASSERT_TRUE(web_contents);
     EXPECT_TRUE(StartsWithASCII(web_contents->GetURL().spec(),
                                 "chrome://newtab/", false));
   } else {
     // TODO(xiyuan): Figure out how to test extension installed bubble?
   }
 }