[Cleanup] Move all browsertests to use ScopedFeatureList to modify features

chrome/browser/task_manager/task_manager_browsertest.cc

Index: chrome/browser/task_manager/task_manager_browsertest.cc
diff --git a/chrome/browser/task_manager/task_manager_browsertest.cc b/chrome/browser/task_manager/task_manager_browsertest.cc
index 51e133c5d75743e3fe9bdca0bb700e10838b202d..158ff125d149dcadf9fe78f2aed6af94639c0566 100644
--- a/chrome/browser/task_manager/task_manager_browsertest.cc
+++ b/chrome/browser/task_manager/task_manager_browsertest.cc
@@ -10,6 +10,7 @@
 #include "base/path_service.h"
 #include "base/strings/stringprintf.h"
 #include "base/strings/utf_string_conversions.h"
+#include "base/test/scoped_feature_list.h"
 #include "build/build_config.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/chrome_notification_types.h"
@@ -186,11 +187,11 @@ class TaskManagerMemoryCoordinatorBrowserTest : public TaskManagerBrowserTest {
 
  protected:
   void SetUpCommandLine(base::CommandLine* command_line) override {
-    command_line->AppendSwitchASCII(switches::kEnableFeatures,
-                                    features::kMemoryCoordinator.name);
+    scoped_feature_list_.InitAndEnableFeature(features::kMemoryCoordinator);
   }
 
  private:
+  base::test::ScopedFeatureList scoped_feature_list_;
   DISALLOW_COPY_AND_ASSIGN(TaskManagerMemoryCoordinatorBrowserTest);
 };