Move OmahaQueryParams to a component and add a delegate interface.

chrome/browser/extensions/webstore_installer.cc

Index: chrome/browser/extensions/webstore_installer.cc
diff --git a/chrome/browser/extensions/webstore_installer.cc b/chrome/browser/extensions/webstore_installer.cc
index c3d566fb9e93ca4727b85011d4e555ade66acd1a..c7279fdff840580e2e639ff73e5c7b9ba3e46bbb 100644
--- a/chrome/browser/extensions/webstore_installer.cc
+++ b/chrome/browser/extensions/webstore_installer.cc
@@ -29,13 +29,13 @@
 #include "chrome/browser/extensions/install_tracker_factory.h"
 #include "chrome/browser/extensions/install_verifier.h"
 #include "chrome/browser/extensions/shared_module_service.h"
-#include "chrome/browser/omaha_query_params/omaha_query_params.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/browser_list.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/extensions/extension_constants.h"
+#include "components/omaha_query_params/omaha_query_params.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/download_manager.h"
 #include "content/public/browser/download_save_info.h"
@@ -60,7 +60,6 @@
 #include "chrome/browser/chromeos/drive/file_system_util.h"
 #endif
 
-using chrome::OmahaQueryParams;
 using content::BrowserContext;
 using content::BrowserThread;
 using content::DownloadItem;
@@ -202,8 +201,9 @@ GURL WebstoreInstaller::GetWebstoreInstallURL(
   std::string url_string = extension_urls::GetWebstoreUpdateUrl().spec();
 
   GURL url(url_string + "?response=redirect&" +
-           OmahaQueryParams::Get(OmahaQueryParams::CRX) + "&x=" +
-           net::EscapeQueryParamValue(JoinString(params, '&'), true));
+           omaha_query_params::OmahaQueryParams::Get(
+               omaha_query_params::OmahaQueryParams::CRX) +
+           "&x=" + net::EscapeQueryParamValue(JoinString(params, '&'), true));
   DCHECK(url.is_valid());
 
   return url;