Tabs API is usable without tabs permission.

chrome/browser/extensions/extension_tab_util_android.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 "chrome/browser/extensions/extension_tab_util.h"
 
 #include "base/logging.h"
 #include "googleurl/src/gurl.h"
 
 using base::DictionaryValue;
@@ skipping 14 matching lines @@
 int ExtensionTabUtil::GetTabId(const WebContents* web_contents) {
   NOTIMPLEMENTED();
   return -1;
 }
 
 int ExtensionTabUtil::GetWindowIdOfTab(const WebContents* web_contents) {
   NOTIMPLEMENTED();
   return -1;
 }
 
-DictionaryValue* ExtensionTabUtil::CreateTabValue(const WebContents* contents) {
+DictionaryValue* ExtensionTabUtil::CreateTabValue(
+    const WebContents* contents,
+    const extensions::Extension* extension) {
   NOTIMPLEMENTED();
   return NULL;
 }
 
-ListValue* ExtensionTabUtil::CreateTabList(const Browser* browser) {
+ListValue* ExtensionTabUtil::CreateTabList(
+    const Browser* browser,
+    const extensions::Extension* extension) {
   NOTIMPLEMENTED();
   return NULL;
 }
 
-DictionaryValue* ExtensionTabUtil::CreateTabValue(const WebContents* contents,
-                                                  TabStripModel* tab_strip,
-                                                  int tab_index) {
+DictionaryValue* ExtensionTabUtil::CreateTabValue(
+    const WebContents* contents,
+    TabStripModel* tab_strip,
+    int tab_index,
+    const extensions::Extension* extension) {
   NOTIMPLEMENTED();
   return NULL;
 }
 
 DictionaryValue* ExtensionTabUtil::CreateTabValueActive(
     const WebContents* contents,
-    bool active) {
+    bool active,
+    const extensions::Extension* extension) {
   NOTIMPLEMENTED();
   return NULL;
 }
 
 bool ExtensionTabUtil::GetTabStripModel(const WebContents* web_contents,
                                         TabStripModel** tab_strip_model,
                                         int* tab_index) {
   NOTIMPLEMENTED();
   return false;
 }
@@ skipping 40 matching lines @@
     const base::Callback<void(WebContents*)>& callback) {
   NOTIMPLEMENTED();
 }
 
 // static
 extensions::WindowController* ExtensionTabUtil::GetWindowControllerOfTab(
     const WebContents* web_contents) {
   NOTIMPLEMENTED();
   return NULL;
 }