Improving the process model extension API

chrome/browser/extensions/extension_tab_util.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 "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/tabs/tab_strip_model.h"
 #include "chrome/browser/ui/tab_contents/tab_contents_wrapper.h"
@@ skipping 205 matching lines @@
 }
 
 bool ExtensionTabUtil::IsCrashURL(const GURL& url) {
   // Check a fixed-up URL, to normalize the scheme and parse hosts correctly.
   GURL fixed_url =
       URLFixerUpper::FixupURL(url.possibly_invalid_spec(), std::string());
   return (fixed_url.SchemeIs(chrome::kChromeUIScheme) &&
           (fixed_url.host() == chrome::kChromeUIBrowserCrashHost ||
            fixed_url.host() == chrome::kChromeUICrashHost));
 }
+
+bool ExtensionTabUtil::ReadOneOrMoreIntegers(base::Value* value,
+                                             std::vector<int>* result) {
+  if (value->IsType(Value::TYPE_INTEGER)) {
+    int tab_id = -1;
+    if (!value->GetAsInteger(&tab_id))
+      return false;
+    result->push_back(tab_id);
+    return true;
+
+  } else if (value->IsType(Value::TYPE_LIST)) {
+    ListValue* tabs = static_cast<ListValue*>(value);
+    for (size_t i = 0; i < tabs->GetSize(); ++i) {
+      int tab_id = -1;
+      if (!tabs->GetInteger(i, &tab_id))
+        return false;
+      result->push_back(tab_id);
+    }
+    return true;
+  }
+  return false;
+}