Remove TabStripModel wrapper use.

BUG=167548
TEST=no functional change


Review URL: https://chromiumcodereview.appspot.com/12051054

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@179407 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/chrome/browser/extensions/extension_tab_util.cc b/chrome/browser/extensions/extension_tab_util.cc
index 5d475b09..44cc21a 100644
--- a/chrome/browser/extensions/extension_tab_util.cc
+++ b/chrome/browser/extensions/extension_tab_util.cc
@@ -13,7 +13,6 @@
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_finder.h"
 #include "chrome/browser/ui/browser_list.h"
-#include "chrome/browser/ui/browser_tabstrip.h"
 #include "chrome/browser/ui/browser_window.h"
 #include "chrome/browser/ui/tab_contents/tab_contents_iterator.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
@@ -167,7 +166,7 @@
   DCHECK(browser);
   DCHECK(contents);
 
-  *contents = chrome::GetActiveWebContents(browser);
+  *contents = browser->tab_strip_model()->GetActiveWebContents();
   if (*contents) {
     if (tab_id)
       *tab_id = GetTabId(*contents);