Improving the process model extension API

BUG=32302
TEST=Unit tests.


Review URL: https://chromiumcodereview.appspot.com/10175008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@137690 0039d316-1c4b-4281-b951-d872f2087c98

1 files changed, 30 insertions, 0 deletions

diff --git a/chrome/browser/extensions/extension_function_util.cc b/chrome/browser/extensions/extension_function_util.cc
new file mode 100644
index 0000000..cc1d3fc
--- /dev/null
+++ b/chrome/browser/extensions/extension_function_util.cc
@@ -0,0 +1,30 @@
+// 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_function_util.h"
+
+namespace extensions {
+
+bool ReadOneOrMoreIntegers(base::Value* value, std::vector<int>* result) {
+  if (value->IsType(Value::TYPE_INTEGER)) {
+    int v = -1;
+    if (!value->GetAsInteger(&v))
+      return false;
+    result->push_back(v);
+    return true;
+
+  } else if (value->IsType(Value::TYPE_LIST)) {
+    base::ListValue* values = static_cast<base::ListValue*>(value);
+    for (size_t i = 0; i < values->GetSize(); ++i) {
+      int v = -1;
+      if (!values->GetInteger(i, &v))
+        return false;
+      result->push_back(v);
+    }
+    return true;
+  }
+  return false;
+}
+
+} // namespace extensions