Support decoding GenericNamedValue based policy.

chrome/browser/policy/proto/old_generic_format.proto

Index: chrome/browser/policy/proto/old_generic_format.proto
diff --git a/chrome/browser/policy/proto/old_generic_format.proto b/chrome/browser/policy/proto/old_generic_format.proto
new file mode 100644
index 0000000000000000000000000000000000000000..dac2850461fbcd6dbb51a149760050e70a068114
--- /dev/null
+++ b/chrome/browser/policy/proto/old_generic_format.proto
@@ -0,0 +1,59 @@
+// Copyright (c) 2011 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.
+
+syntax = "proto2";
+
+option optimize_for = LITE_RUNTIME;
+
+package enterprise_management;
+
+// This file keeps the deprecated GenericNamedValue based format for policies
+// available. It is intended to be removed (along with all code that makes
+// use of it) as soon as all server-side components (CPanel, D3) have been
+// migrated to provide the new, explicitly typed format to clients.
+
+// A setting is a set of generic name value pairs.
+message GenericSetting {
+  repeated GenericNamedValue named_value = 1;
+}
+
+// Generic value container.
+message GenericValue {
+  enum ValueType {
+    VALUE_TYPE_BOOL = 1;
+    VALUE_TYPE_INT64 = 2;
+    VALUE_TYPE_STRING = 3;
+    VALUE_TYPE_DOUBLE = 4;
+    VALUE_TYPE_BYTES = 5;
+    VALUE_TYPE_BOOL_ARRAY = 6;
+    VALUE_TYPE_INT64_ARRAY = 7;
+    VALUE_TYPE_STRING_ARRAY = 8;
+    VALUE_TYPE_DOUBLE_ARRAY = 9;
+  }
+
+  optional ValueType value_type = 1 [default = VALUE_TYPE_STRING];
+
+  // basic value types
+  optional bool bool_value = 2;
+  optional int64 int64_value = 3;
+  optional string string_value = 4;
+  optional double double_value = 5;
+  optional bytes bytes_value = 6;
+  repeated bool bool_array = 7;
+  repeated int64 int64_array = 8;
+  repeated string string_array = 9;
+  repeated double double_array = 10;
+}
+
+// Generic name value pair container.
+message GenericNamedValue {
+  required string name = 1;
+  optional GenericValue value = 2;
+}
+
+// Wrapper that contains the above. Designed to be a partial view of the
+// data the server currently delivers.
+message LegacyChromeSettingsProto {
+  repeated GenericNamedValue named_value = 2;
+}