From: csagan5 <32685696+csagan5@users.noreply.github.com>
Date: Sat, 19 Feb 2022 12:01:33 +0100
Subject: Disable idle detection

License: GPL-3.0-only - https://spdx.org/licenses/GPL-3.0-only.html
---
 .../common/content_features_cc/Disable-idle-detection.inc    | 4 ++++
 .../common/content_features_h/Disable-idle-detection.inc     | 1 +
 .../cpp/permissions_policy/permissions_policy_features.json5 | 1 +
 third_party/blink/renderer/modules/idle/idle_detector.idl    | 3 ++-
 .../blink/renderer/platform/runtime_enabled_features.json5   | 5 +++++
 5 files changed, 13 insertions(+), 1 deletion(-)
 create mode 100644 cromite_flags/content/public/common/content_features_cc/Disable-idle-detection.inc
 create mode 100644 cromite_flags/content/public/common/content_features_h/Disable-idle-detection.inc

diff --git a/cromite_flags/content/public/common/content_features_cc/Disable-idle-detection.inc b/cromite_flags/content/public/common/content_features_cc/Disable-idle-detection.inc
new file mode 100644
--- /dev/null
+++ b/cromite_flags/content/public/common/content_features_cc/Disable-idle-detection.inc
@@ -0,0 +1,4 @@
+// This is intended as a kill switch for the Idle Detection feature. To enable
+// this feature, the experimental web platform features flag should be set,
+// or the site should obtain an Origin Trial token.
+CROMITE_FEATURE(kIdleDetection, "IdleDetection", base::FEATURE_DISABLED_BY_DEFAULT);
diff --git a/cromite_flags/content/public/common/content_features_h/Disable-idle-detection.inc b/cromite_flags/content/public/common/content_features_h/Disable-idle-detection.inc
new file mode 100644
--- /dev/null
+++ b/cromite_flags/content/public/common/content_features_h/Disable-idle-detection.inc
@@ -0,0 +1 @@
+CONTENT_EXPORT BASE_DECLARE_FEATURE(kIdleDetection);
diff --git a/services/network/public/cpp/permissions_policy/permissions_policy_features.json5 b/services/network/public/cpp/permissions_policy/permissions_policy_features.json5
--- a/services/network/public/cpp/permissions_policy/permissions_policy_features.json5
+++ b/services/network/public/cpp/permissions_policy/permissions_policy_features.json5
@@ -394,6 +394,7 @@
     {
       name: "IdleDetection",
       permissions_policy_name: "idle-detection",
+      depends_on: ["IdleDetection"],
     },
     {
       name: "JoinAdInterestGroup",
diff --git a/third_party/blink/renderer/modules/idle/idle_detector.idl b/third_party/blink/renderer/modules/idle/idle_detector.idl
--- a/third_party/blink/renderer/modules/idle/idle_detector.idl
+++ b/third_party/blink/renderer/modules/idle/idle_detector.idl
@@ -17,7 +17,8 @@ enum ScreenIdleState {
 [
   SecureContext,
   Exposed=(Window,DedicatedWorker),
-  ActiveScriptWrappable
+  ActiveScriptWrappable,
+  RuntimeEnabled=IdleDetection
 ] interface IdleDetector : EventTarget {
   [CallWith=ScriptState] constructor();
   readonly attribute UserIdleState? userState;
diff --git a/third_party/blink/renderer/platform/runtime_enabled_features.json5 b/third_party/blink/renderer/platform/runtime_enabled_features.json5
--- a/third_party/blink/renderer/platform/runtime_enabled_features.json5
+++ b/third_party/blink/renderer/platform/runtime_enabled_features.json5
@@ -229,6 +229,11 @@
       name: "AcceleratedSmallCanvases",
       status: "stable",
     },
+    {
+      name: "IdleDetection",  // disabled
+      public: true,           // by
+      base_feature: "none",   // default
+    },
     {
       name: "AccessibilityAriaVirtualContent",
       public: true,
--