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

content/browser/renderer_host/media/video_capture_browsertest.cc

Index: content/browser/renderer_host/media/video_capture_browsertest.cc
diff --git a/content/browser/renderer_host/media/video_capture_browsertest.cc b/content/browser/renderer_host/media/video_capture_browsertest.cc
index e4c37d1e64a1cce636638653185b47ece3eefd92..4d2ac4b23a9e00b08b25b65f7eda8a0235e69fd8 100644
--- a/content/browser/renderer_host/media/video_capture_browsertest.cc
+++ b/content/browser/renderer_host/media/video_capture_browsertest.cc
@@ -4,6 +4,7 @@
 
 #include "base/command_line.h"
 #include "base/run_loop.h"
+#include "base/test/scoped_feature_list.h"
 #include "build/build_config.h"
 #include "content/browser/browser_main_loop.h"
 #include "content/browser/renderer_host/media/media_stream_manager.h"
@@ -145,6 +146,14 @@ class VideoCaptureBrowserTest : public ContentBrowserTest,
     video_capture_manager_->Close(session_id_);
   }
 
+  void SetUp() override {
+    if (params_.use_mojo_service) {
+      scoped_feature_list_.InitAndEnableFeature(
+          video_capture::kMojoVideoCapture);
+    }
+    ContentBrowserTest::SetUp();
+  }
+
  protected:
   void SetUpCommandLine(base::CommandLine* command_line) override {
     command_line->AppendSwitchASCII(switches::kUseFakeDeviceForMediaStream,
@@ -157,10 +166,6 @@ class VideoCaptureBrowserTest : public ContentBrowserTest,
       base::CommandLine::ForCurrentProcess()->AppendSwitch(
           switches::kDisableAcceleratedMjpegDecode);
     }
-    if (params_.use_mojo_service) {
-      base::CommandLine::ForCurrentProcess()->AppendSwitchASCII(
-          switches::kEnableFeatures, video_capture::kMojoVideoCapture.name);
-    }
   }
 
   // This cannot be part of an override of SetUp(), because at the time when
@@ -211,6 +216,7 @@ class VideoCaptureBrowserTest : public ContentBrowserTest,
   MockMediaStreamProviderListener mock_stream_provider_listener_;
   MockVideoCaptureControllerEventHandler mock_controller_event_handler_;
   base::WeakPtr<VideoCaptureController> controller_;
+  base::test::ScopedFeatureList scoped_feature_list_;
 };
 
 IN_PROC_BROWSER_TEST_P(VideoCaptureBrowserTest, StartAndImmediatelyStop) {