Drop more dependencies of ProfileKeyedService infrastructure on chrome.

chrome/test/base/testing_profile.cc

Index: chrome/test/base/testing_profile.cc
diff --git a/chrome/test/base/testing_profile.cc b/chrome/test/base/testing_profile.cc
index 6be66289465e091eef3d6928f2dff757554533e6..5a941fe41d7ad4aa56096a9f7d9e892e2260c89a 100644
--- a/chrome/test/base/testing_profile.cc
+++ b/chrome/test/base/testing_profile.cc
@@ -44,6 +44,7 @@
 #include "chrome/browser/prefs/browser_prefs.h"
 #include "chrome/browser/prefs/pref_service_syncable.h"
 #include "chrome/browser/prerender/prerender_manager.h"
+#include "chrome/browser/profiles/chrome_browser_main_extra_parts_profiles.h"
 #include "chrome/browser/profiles/profile_dependency_manager.h"
 #include "chrome/browser/profiles/storage_partition_descriptor.h"
 #include "chrome/browser/search_engines/template_url_fetcher_factory.h"
@@ -277,6 +278,11 @@ void TestingProfile::CreateTempProfileDir() {
 }
 
 void TestingProfile::Init() {
+  // Normally this would happen during browser startup, but for tests
+  // we need to trigger creation of Profile-related services.
+  ChromeBrowserMainExtraPartsProfiles::
+      EnsureProfileKeyedServiceFactoriesBuilt();
+
   if (prefs_.get())
     components::UserPrefs::Set(this, prefs_.get());
   else