Remove TabStripModel wrapper use.

chrome/browser/extensions/extension_dom_clipboard_apitest.cc

Index: chrome/browser/extensions/extension_dom_clipboard_apitest.cc
diff --git a/chrome/browser/extensions/extension_dom_clipboard_apitest.cc b/chrome/browser/extensions/extension_dom_clipboard_apitest.cc
index 0226387b4bcf995e9378d8fcda8af38d646b424e..a0c1544e13d09e6aee0a18bdb6907b104ba1f603 100644
--- a/chrome/browser/extensions/extension_dom_clipboard_apitest.cc
+++ b/chrome/browser/extensions/extension_dom_clipboard_apitest.cc
@@ -5,7 +5,7 @@
 #include "base/stringprintf.h"
 #include "chrome/browser/extensions/extension_apitest.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/test/base/ui_test_utils.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/test/browser_test_utils.h"
@@ -68,7 +68,7 @@ bool ClipboardApiTest::ExecutePasteInSelectedTab(bool* result) {
 bool ClipboardApiTest::ExecuteScriptInSelectedTab(const std::string& script,
                                                   bool* result) {
   if (!content::ExecuteScriptAndExtractBool(
-          chrome::GetActiveWebContents(browser()),
+          browser()->tab_strip_model()->GetActiveWebContents(),
           script,
           result)) {
     message_ = "Failed to execute script in selected tab.";