Add Brand Code to UMA Uploads

chrome/common/metrics/proto/system_profile.proto

 // 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.
 //
 // Stores information about the user's brower and system configuration.
 // The system configuration fields are recorded once per client session.
 
 syntax = "proto2";
 
 option optimize_for = LITE_RUNTIME;
 
 package metrics;
 
-// Next tag: 12
+// Next tag: 13
 message SystemProfileProto {
   // The time when the client was compiled/linked, in seconds since the epoch.
   optional int64 build_timestamp = 1;
 
   // A version number string for the application.
   // Most commonly this is the browser version number found in a user agent
   // string, and is typically a 4-tuple of numbers separated by periods.  In
   // cases where the user agent version might be ambiguous (example: Linux 64-
   // bit build, rather than 32-bit build, or a Windows version used in some
   // special context, such as ChromeFrame running in IE), then this may include
   // some additional postfix to provide clarification not available in the UA
   // string.
   //
   // An example of a browser version 4-tuple is "5.0.322.0".  Currently used
   // postfixes are:
   //
   //   "-64": a 64-bit build
   //   "-F": Chrome is running under control of ChromeFrame
   //   "-devel": this is not an official build of Chrome
   //
   // A full version number string could look similar to:
   // "5.0.322.0-F-devel".
   //
   // This value, when available, is more trustworthy than the UA string
   // associated with the request; and including the postfix, may be more
   // specific.
   optional string app_version = 2;
 
+  // The brand code or distribution tag assigned to a partner, if available.

[Ilya Sherman, 2013/01/23 22:04:54]

nit: Please mention that these are only available on Windows.

[Mark P, 2013/01/23 23:23:20]

Done.

+  optional string brand_code = 12;
+
   // The possible channels for an installation, from least to most stable.
   enum Channel {
     CHANNEL_UNKNOWN = 0;  // Unknown channel -- perhaps an unofficial build?
     CHANNEL_CANARY = 1;
     CHANNEL_DEV = 2;
     CHANNEL_BETA = 3;
     CHANNEL_STABLE = 4;
   }
   optional Channel channel = 10;
 
@@ skipping 265 matching lines @@
     // The name of the field trial, as a 32-bit identifier.
     // Currently, the identifier is a hash of the field trial's name.
     optional fixed32 name_id = 1;
 
     // The user's group within the field trial, as a 32-bit identifier.
     // Currently, the identifier is a hash of the group's name.
     optional fixed32 group_id = 2;
   }
   repeated FieldTrial field_trial = 9;
 }