Remove TabStripModel wrapper use.

chrome/browser/extensions/page_action_browsertest.cc

Index: chrome/browser/extensions/page_action_browsertest.cc
diff --git a/chrome/browser/extensions/page_action_browsertest.cc b/chrome/browser/extensions/page_action_browsertest.cc
index d40a2a58f679215d3e6795000bd0791b32af0285..f417d251593e433108f28c058a6dc7c3a05c1eca 100644
--- a/chrome/browser/extensions/page_action_browsertest.cc
+++ b/chrome/browser/extensions/page_action_browsertest.cc
@@ -10,7 +10,7 @@
 #include "chrome/browser/extensions/extension_system.h"
 #include "chrome/browser/extensions/extension_tab_util.h"
 #include "chrome/browser/ui/browser.h"
-#include "chrome/browser/ui/browser_tabstrip.h"
+#include "chrome/browser/ui/tabs/tab_strip_model.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/extensions/extension.h"
 #include "chrome/test/base/ui_test_utils.h"
@@ -194,7 +194,7 @@ IN_PROC_BROWSER_TEST_F(ExtensionBrowserTest, TitleLocalizationPageAction) {
   EXPECT_STREQ(WideToUTF8(L"Hreggvi\u00F0ur is my name").c_str(),
                extension->name().c_str());
   int tab_id = ExtensionTabUtil::GetTabId(
-      chrome::GetActiveWebContents(browser()));
+      browser()->tab_strip_model()->GetActiveWebContents());
   EXPECT_STREQ(WideToUTF8(L"Hreggvi\u00F0ur").c_str(),
                ExtensionActionManager::Get(browser()->profile())->
                GetPageAction(*extension)->