Override user data directory to the temp for ProfileInfoCacheTest.

chrome/browser/profiles/profile_info_cache_unittest.h

Index: chrome/browser/profiles/profile_info_cache_unittest.h
diff --git a/chrome/browser/profiles/profile_info_cache_unittest.h b/chrome/browser/profiles/profile_info_cache_unittest.h
index 97d97e44f03f216fbaef7de67e56120ca0d50754..40e18f7aa7df6bb21cba10e6099b2bcf22a11eb1 100644
--- a/chrome/browser/profiles/profile_info_cache_unittest.h
+++ b/chrome/browser/profiles/profile_info_cache_unittest.h
@@ -7,6 +7,7 @@
 
 #include <set>
 
+#include "base/test/scoped_path_override.h"
 #include "chrome/browser/profiles/profile_info_cache_observer.h"
 #include "chrome/test/base/testing_profile_manager.h"
 #include "content/public/test/test_browser_thread_bundle.h"
@@ -60,6 +61,7 @@ class ProfileInfoCacheTest : public testing::Test {
  private:
   content::TestBrowserThreadBundle thread_bundle_;
   ProfileNameVerifierObserver name_observer_;
+  base::ScopedPathOverride user_data_dir_override_;
 };
 
 #endif  // CHROME_BROWSER_PROFILES_PROFILE_INFO_CACHE_UNITTEST_H_