Improving the process model extension API

chrome/browser/extensions/extension_tab_util.h

 // 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.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_EXTENSION_TAB_UTIL_H__
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_TAB_UTIL_H__
 #pragma once
 
 #include <string>
+#include <vector>
 
 class Browser;
 class Extension;
 class GURL;
 class Profile;
 class TabContentsWrapper;
 class TabStripModel;
 
 namespace base {
 class DictionaryValue;
 class ListValue;
+class Value;
 }
 
 namespace content {
 class WebContents;
 }
 
 // Provides various utility functions that help manipulate tabs.
 class ExtensionTabUtil {
  public:
   static int GetWindowId(const Browser* browser);
@@ skipping 37 matching lines @@
   // provided so it can be resolved relative to its extension base
   // (chrome-extension://<id>/). Using the source frame url would be more
   // correct, but because the api shipped with urls resolved relative to their
   // extension base, we decided it wasn't worth breaking existing extensions to
   // fix.
   static GURL ResolvePossiblyRelativeURL(const std::string& url_string,
                                          const Extension* extension);
 
   // Returns true if |url| is used for testing crashes.
   static bool IsCrashURL(const GURL& url);
+
+  // Reads the |value| as either a single integer value or a list of integers.
+  static bool ReadOneOrMoreIntegers(base::Value* value,
+                                    std::vector<int>* result);
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_TAB_UTIL_H__