Remove TabStripModel wrapper use.

chrome/browser/extensions/extension_url_rewrite_browsertest.cc

Index: chrome/browser/extensions/extension_url_rewrite_browsertest.cc
diff --git a/chrome/browser/extensions/extension_url_rewrite_browsertest.cc b/chrome/browser/extensions/extension_url_rewrite_browsertest.cc
index 819973304a39569abd2b6f31542cf12ed0d7d982..e30da012b14e4da6ce97ea777015b7c03b6b7cf5 100644
--- a/chrome/browser/extensions/extension_url_rewrite_browsertest.cc
+++ b/chrome/browser/extensions/extension_url_rewrite_browsertest.cc
@@ -8,10 +8,10 @@
 #include "chrome/browser/extensions/component_loader.h"
 #include "chrome/browser/extensions/extension_browsertest.h"
 #include "chrome/browser/ui/browser.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_view.h"
+#include "chrome/browser/ui/tabs/tab_strip_model.h"
 #include "chrome/common/url_constants.h"
 #include "chrome/test/base/in_process_browser_test.h"
 #include "chrome/test/base/testing_profile.h"
@@ -42,7 +42,8 @@ class ExtensionURLRewriteBrowserTest : public ExtensionBrowserTest {
   }
 
   content::NavigationController* GetNavigationController() const {
-    return &chrome::GetActiveWebContents(browser())->GetController();
+    return &browser()->tab_strip_model()->GetActiveWebContents()->
+        GetController();
   }
 
   NavigationEntry* GetNavigationEntry() const {