Expose UkmService to content/

chrome/browser/chrome_content_browser_client.cc

Index: chrome/browser/chrome_content_browser_client.cc
diff --git a/chrome/browser/chrome_content_browser_client.cc b/chrome/browser/chrome_content_browser_client.cc
index 00d589b5f48e312eb67992740aa533ceb102d55e..b210b44600b2742911ab5ca6fed55d47d653a242 100644
--- a/chrome/browser/chrome_content_browser_client.cc
+++ b/chrome/browser/chrome_content_browser_client.cc
@@ -2959,6 +2959,10 @@ void ChromeContentBrowserClient::GetURLRequestAutoMountHandlers(
   return g_browser_process->rappor_service();
 }
 
+::ukm::UkmService* ChromeContentBrowserClient::GetUkmService() {
+  return g_browser_process->ukm_service();
+}
+
 void ChromeContentBrowserClient::GetAdditionalFileSystemBackends(
     content::BrowserContext* browser_context,
     const base::FilePath& storage_partition_path,