[Blink-Scheduler] Distinguish between normal and foreground-only renderers for monitoring load.

chrome/renderer/chrome_content_renderer_client.cc

Index: chrome/renderer/chrome_content_renderer_client.cc
diff --git a/chrome/renderer/chrome_content_renderer_client.cc b/chrome/renderer/chrome_content_renderer_client.cc
index 51e8e616838f365f3447c388de5b5f6caa004056..25d561a1740f5665ddeb2c070fcd7070c3758035 100644
--- a/chrome/renderer/chrome_content_renderer_client.cc
+++ b/chrome/renderer/chrome_content_renderer_client.cc
@@ -1578,3 +1578,11 @@ ChromeContentRendererClient::GetTaskSchedulerInitParams() {
   return task_scheduler_util::
       GetRendererTaskSchedulerInitParamsFromCommandLine();
 }
+
+bool ChromeContentRendererClient::CanBeBackgrounded() const {
+#if BUILDFLAG(ENABLE_EXTENSIONS)
+  return !IsStandaloneExtensionProcess();
+#else
+  return true;
+#endif
+}