Creating WebXRCameraAccess runtime feature.

I2P: https://groups.google.com/a/chromium.org/d/msg/blink-dev/4kMGCyCUIao/5vjPk4tuAQAJ

Change-Id: I9969f0c6d65a7afce14b5058c6719599c72dad80
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2225546
Commit-Queue: Luis Garcia <luisggarcia@google.com>
Reviewed-by: Piotr Bialecki <bialpio@chromium.org>
Reviewed-by: Scott Violet <sky@chromium.org>
Reviewed-by: Chris Harrelson <chrishtr@chromium.org>
Reviewed-by: Klaus Weidner <klausw@chromium.org>
Cr-Commit-Position: refs/heads/master@{#775295}

content/child/runtime_features.cc

@@ -215,6 +215,7 @@ void SetRuntimeFeaturesFromChromiumFeatures() {
     {wf::EnableWebXRIncubations, features::kWebXrIncubations, kEnableOnly},
     {wf::EnableWebXRAnchors, features::kWebXrIncubations, kEnableOnly},
     {wf::EnableWebXRLightEstimation, features::kWebXrIncubations, kEnableOnly},
+    {wf::EnableWebXRCameraAccess, features::kWebXrIncubations, kEnableOnly},
     {wf::EnableUserActivationPostMessageTransfer,
      features::kUserActivationPostMessageTransfer, kUseFeatureState},
     {wf::EnableUserActivationSameOriginVisibility,

third_party/blink/public/platform/web_runtime_features.h

@@ -189,6 +189,7 @@ class WebRuntimeFeatures {
   BLINK_PLATFORM_EXPORT static void EnableWebXRHitTest(bool);
   BLINK_PLATFORM_EXPORT static void EnableWebXRIncubations(bool);
   BLINK_PLATFORM_EXPORT static void EnableWebXRLightEstimation(bool);
+  BLINK_PLATFORM_EXPORT static void EnableWebXRCameraAccess(bool);
   BLINK_PLATFORM_EXPORT static void EnableXSLT(bool);
   BLINK_PLATFORM_EXPORT static void ForceOverlayFullscreenVideo(bool);
   BLINK_PLATFORM_EXPORT static void EnableTimerThrottlingForBackgroundTabs(

third_party/blink/renderer/platform/exported/web_runtime_features.cc

@@ -475,6 +475,10 @@ void WebRuntimeFeatures::EnableWebXRLightEstimation(bool enable) {
   RuntimeEnabledFeatures::SetWebXRLightEstimationEnabled(enable);
 }
 
+void WebRuntimeFeatures::EnableWebXRCameraAccess(bool enable) {
+  RuntimeEnabledFeatures::SetWebXRCameraAccessEnabled(enable);
+}
+
 void WebRuntimeFeatures::EnablePresentationAPI(bool enable) {
   RuntimeEnabledFeatures::SetPresentationEnabled(enable);
 }

third_party/blink/renderer/platform/runtime_enabled_features.json5

@@ -2024,6 +2024,11 @@
       depends_on: ["WebXR"],
       status: "stable",
     },
+    {
+      name: "WebXRCameraAccess",
+      depends_on: ["WebXRARModule"],
+      status: "experimental",
+    },
     {
       name: "WebXRHitTest",
       depends_on: ["WebXRARModule"],