Switch ChromeTestSuite to the same convention as ContentTestSuite:

chrome/browser/extensions/user_script_master_unittest.cc

Index: chrome/browser/extensions/user_script_master_unittest.cc
diff --git a/chrome/browser/extensions/user_script_master_unittest.cc b/chrome/browser/extensions/user_script_master_unittest.cc
index 2637c28f172d5955e0a48e64327c5dd5ac529be4..9d2abccec0bc9651d90651a321c50076cc0872c5 100644
--- a/chrome/browser/extensions/user_script_master_unittest.cc
+++ b/chrome/browser/extensions/user_script_master_unittest.cc
@@ -13,7 +13,6 @@
 #include "base/scoped_temp_dir.h"
 #include "base/string_util.h"
 #include "chrome/common/chrome_notification_types.h"
-#include "chrome/test/base/testing_browser_process_test.h"
 #include "chrome/test/base/testing_profile.h"
 #include "content/browser/browser_thread.h"
 #include "content/common/notification_registrar.h"
@@ -32,7 +31,7 @@ static void AddPattern(URLPatternSet* extent, const std::string& pattern) {
 // Test bringing up a master on a specific directory, putting a script
 // in there, etc.
 
-class UserScriptMasterTest : public TestingBrowserProcessTest,
+class UserScriptMasterTest : public testing::Test,
                              public NotificationObserver {
  public:
   UserScriptMasterTest()