Added accessor for the ukm service to the browser process singleton

chrome/test/base/testing_browser_process.cc

Index: chrome/test/base/testing_browser_process.cc
diff --git a/chrome/test/base/testing_browser_process.cc b/chrome/test/base/testing_browser_process.cc
index 758ce502b8520831ea39856201171350e7494582..83f1cd43e1ddd45d10386e37a413cb6e3d699531 100644
--- a/chrome/test/base/testing_browser_process.cc
+++ b/chrome/test/base/testing_browser_process.cc
@@ -117,6 +117,10 @@ rappor::RapporServiceImpl* TestingBrowserProcess::rappor_service() {
   return rappor_service_;
 }
 
+ukm::UkmService* TestingBrowserProcess::ukm_service() {
+  return ukm_service_;
+}
+
 IOThread* TestingBrowserProcess::io_thread() {
   return io_thread_;
 }
@@ -465,6 +469,10 @@ void TestingBrowserProcess::SetRapporServiceImpl(
   rappor_service_ = rappor_service;
 }
 
+void TestingBrowserProcess::SetUkmService(ukm::UkmService* ukm_service) {
+  ukm_service_ = ukm_service;
+}
+
 void TestingBrowserProcess::SetShuttingDown(bool is_shutting_down) {
   is_shutting_down_ = is_shutting_down;
 }