Move OmahaQueryParams to a component and add a delegate interface.

chrome/browser/browser_process_impl.cc

Index: chrome/browser/browser_process_impl.cc
diff --git a/chrome/browser/browser_process_impl.cc b/chrome/browser/browser_process_impl.cc
index 7f492c575c22e6ae13b52c0ff07ba29c145f9eb6..915dde8fefedb65ad94381eee6f868369652f273 100644
--- a/chrome/browser/browser_process_impl.cc
+++ b/chrome/browser/browser_process_impl.cc
@@ -50,6 +50,7 @@
 #include "chrome/browser/net/chrome_net_log.h"
 #include "chrome/browser/net/crl_set_fetcher.h"
 #include "chrome/browser/notifications/notification_ui_manager.h"
+#include "chrome/browser/omaha_query_params/chrome_omaha_query_params_delegate.h"
 #include "chrome/browser/plugins/chrome_plugin_service_filter.h"
 #include "chrome/browser/plugins/plugin_finder.h"
 #include "chrome/browser/prefs/browser_prefs.h"
@@ -202,6 +203,8 @@ BrowserProcessImpl::BrowserProcessImpl(
   ExtensionRendererState::GetInstance()->Init();
 
   message_center::MessageCenter::Initialize();
+
+  OmahaQueryParamsDelegate::Set(ChromeOmahaQueryParamsDelegate::GetInstance());
 }
 
 BrowserProcessImpl::~BrowserProcessImpl() {