Send the value of google_brand::GetBrand in component update checks.

components/update_client/configurator.h

 // Copyright 2014 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.
 
 #ifndef COMPONENTS_UPDATE_CLIENT_CONFIGURATOR_H_
 #define COMPONENTS_UPDATE_CLIENT_CONFIGURATOR_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 47 matching lines @@
   virtual std::vector<GURL> PingUrl() const = 0;
 
   // Version of the application. Used to compare the component manifests.
   virtual base::Version GetBrowserVersion() const = 0;
 
   // Returns the value we use for the "updaterchannel=" and "prodchannel="
   // parameters. Possible return values include: "canary", "dev", "beta", and
   // "stable".
   virtual std::string GetChannel() const = 0;
 
+  // Returns the brand code or distribution tag that has been assigned to
+  // a partner. A brand code is a 4-character string used to identify
+  // installations that took place as a result of partner deals or website
+  // promotions.
+  virtual std::string GetBrand() const = 0;
+
   // Returns the language for the present locale. Possible return values are
   // standard tags for languages, such as "en", "en-US", "de", "fr", "af", etc.
   virtual std::string GetLang() const = 0;
 
   // Returns the OS's long name like "Windows", "Mac OS X", etc.
   virtual std::string GetOSLongName() const = 0;
 
   // Parameters added to each url request. It can be empty if none are needed.
   // The return string must be safe for insertion as an attribute in an
   // XML element.
@@ skipping 29 matching lines @@
 
  protected:
   friend class base::RefCountedThreadSafe<Configurator>;
 
   virtual ~Configurator() {}
 };
 
 }  // namespace update_client
 
 #endif  // COMPONENTS_UPDATE_CLIENT_CONFIGURATOR_H_