Enable permission warnings from ManifestHandlers.

extensions/common/permissions/manifest_permission_set.cc

Index: extensions/common/permissions/manifest_permission_set.cc
diff --git a/extensions/common/permissions/manifest_permission_set.cc b/extensions/common/permissions/manifest_permission_set.cc
new file mode 100644
index 0000000000000000000000000000000000000000..821159f6a2591fa54261a9dae296fb801857dd40
--- /dev/null
+++ b/extensions/common/permissions/manifest_permission_set.cc
@@ -0,0 +1,93 @@
+// Copyright 2013 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 "extensions/common/permissions/manifest_permission_set.h"
+
+#include "base/logging.h"
+#include "base/strings/string_number_conversions.h"
+#include "base/values.h"
+#include "extensions/common/error_utils.h"
+#include "extensions/common/manifest_constants.h"
+#include "extensions/common/manifest_handler.h"
+#include "extensions/common/permissions/manifest_permission.h"
+
+namespace {
+
+using extensions::ErrorUtils;
+using extensions::ManifestPermission;
+using extensions::ManifestPermissionSet;
+using extensions::ManifestHandler;
+namespace errors = extensions::manifest_errors;
+
+bool CreateManifestPermission(
+    const std::string& permission_name,
+    const base::Value* permission_value,
+    ManifestPermissionSet* manifest_permissions,
+    string16* error,
+    std::vector<std::string>* unhandled_permissions) {
+
+  scoped_ptr<ManifestPermission> permission(
+      ManifestHandler::CreatePermission(permission_name));
+
+  if (!permission) {
+    if (unhandled_permissions)
+      unhandled_permissions->push_back(permission_name);
+    else
+      LOG(WARNING) << "Unknown permission[" << permission_name << "].";
+    return true;
+  }
+
+  if (!permission->FromValue(permission_value)) {
+    if (error) {
+      *error = ErrorUtils::FormatErrorMessageUTF16(
+          errors::kInvalidPermission, permission_name);
+      return false;
+    }
+    LOG(WARNING) << "Parse permission failed.";
+    return true;
+  } else {
+    manifest_permissions->insert(permission.release());
+    return true;
+  }
+}
+
+}  // namespace
+
+namespace extensions {
+
+// static
+bool ManifestPermissionSet::ParseFromJSON(
+    const base::ListValue* permissions,
+    ManifestPermissionSet* manifest_permissions,
+    string16* error,
+    std::vector<std::string>* unhandled_permissions) {
+  for (size_t i = 0; i < permissions->GetSize(); ++i) {
+    std::string permission_name;
+    const base::Value* permission_value = NULL;
+    if (!permissions->GetString(i, &permission_name)) {
+      const base::DictionaryValue* dict = NULL;
+      // permission should be a string or a single key dict.
+      if (!permissions->GetDictionary(i, &dict) || dict->size() != 1) {
+        if (error) {
+          *error = ErrorUtils::FormatErrorMessageUTF16(
+              errors::kInvalidPermission, base::IntToString(i));
+          return false;
+        }
+        LOG(WARNING) << "Permission is not a string or single key dict.";
+        continue;
+      }
+      base::DictionaryValue::Iterator it(*dict);
+      permission_name = it.key();
+      permission_value = &it.value();
+    }
+
+    if (!CreateManifestPermission(permission_name, permission_value,
+                                  manifest_permissions, error,
+                                  unhandled_permissions))
+      return false;
+  }
+  return true;
+}
+
+}  // namespace extensions