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

ios/chrome/browser/component_updater/ios_component_updater_configurator.cc

Index: ios/chrome/browser/component_updater/ios_component_updater_configurator.cc
diff --git a/ios/chrome/browser/component_updater/ios_component_updater_configurator.cc b/ios/chrome/browser/component_updater/ios_component_updater_configurator.cc
index ea16f56f3c78a818ee270d3c965dcf38fd9c37ba..0ad785b51fac8c659fcb38dbb7dc0878fedfc5cd 100644
--- a/ios/chrome/browser/component_updater/ios_component_updater_configurator.cc
+++ b/ios/chrome/browser/component_updater/ios_component_updater_configurator.cc
@@ -12,6 +12,7 @@
 #include "components/component_updater/configurator_impl.h"
 #include "components/update_client/component_patcher_operation.h"
 #include "ios/chrome/browser/application_context.h"
+#include "ios/chrome/browser/google/google_brand.h"
 #include "ios/chrome/common/channel_info.h"
 #include "ios/web/public/web_thread.h"
 
@@ -34,6 +35,7 @@ class IOSConfigurator : public update_client::Configurator {
   std::vector<GURL> PingUrl() const override;
   base::Version GetBrowserVersion() const override;
   std::string GetChannel() const override;
+  std::string GetBrand() const override;
   std::string GetLang() const override;
   std::string GetOSLongName() const override;
   std::string ExtraRequestParams() const override;
@@ -96,6 +98,12 @@ std::string IOSConfigurator::GetChannel() const {
   return GetChannelString();
 }
 
+std::string IOSConfigurator::GetBrand() const {
+  std::string brand;
+  ios::google_brand::GetBrand(&brand);
+  return brand;
+}
+
 std::string IOSConfigurator::GetLang() const {
   return GetApplicationContext()->GetApplicationLocale();
 }