Use UtilityProcessHost to patch files.

chrome/browser/component_updater/test/component_updater_service_unittest.cc

Index: chrome/browser/component_updater/test/component_updater_service_unittest.cc
diff --git a/chrome/browser/component_updater/test/component_updater_service_unittest.cc b/chrome/browser/component_updater/test/component_updater_service_unittest.cc
index a08ad224493c626f768edfabb3797acf3bd14685..4fa28f77b1ab2f098bd0b4b6f3696e7d62c37775 100644
--- a/chrome/browser/component_updater/test/component_updater_service_unittest.cc
+++ b/chrome/browser/component_updater/test/component_updater_service_unittest.cc
@@ -108,10 +108,6 @@ net::URLRequestContextGetter* TestConfigurator::RequestContext() {
 // Don't use the utility process to run code out-of-process.
 bool TestConfigurator::InProcess() { return true; }
 
-ComponentPatcher* TestConfigurator::CreateComponentPatcher() {
-  return new MockComponentPatcher();
-}
-
 bool TestConfigurator::DeltasEnabled() const {
   return true;
 }