Support offscreen contexts which own their backing surface

content/public/common/content_features.cc

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "build/build_config.h"
 #include "content/public/common/content_features.h"
 
 namespace features {
 
 // All features in alphabetical order.
@@ skipping 235 matching lines @@
     base::FEATURE_DISABLED_BY_DEFAULT};
 
 // Enables HW H264 encoding on Android.
 const base::Feature kWebRtcHWH264Encoding{
     "WebRtcHWH264Encoding", base::FEATURE_ENABLED_BY_DEFAULT};
 
 // Controls whether the WebUSB API is enabled:
 // https://wicg.github.io/webusb
 const base::Feature kWebUsb{"WebUSB", base::FEATURE_ENABLED_BY_DEFAULT};
 
+// Enables WebVR experimental rendering optimizations.
+const base::Feature kWebVrExperimentalRendering{
+    "WebVrExperimentalRendering", base::FEATURE_DISABLED_BY_DEFAULT};

[amp, 2017/02/15 17:44:03]

WebVR has a capital 'R' in all the other places we use it.  Not sure if it makes
a huge difference, but I'm likely to misspell this on the command line if I try
to use it.

[klausw, 2017/02/15 19:47:22]

Done.

+
 // Make sendBeacon throw for a Blob with a non simple type.
 const base::Feature kSendBeaconThrowForBlobWithNonSimpleType{
     "SendBeaconThrowForBlobWithNonSimpleType",
     base::FEATURE_DISABLED_BY_DEFAULT};
 
 #if defined(OS_ANDROID)
 // A browsing history manager implementation for Android.
 const base::Feature kNativeAndroidHistoryManager{
   "AndroidHistoryManager", base::FEATURE_DISABLED_BY_DEFAULT};
 
@@ skipping 22 matching lines @@
 #endif  // !defined(OS_ANDROID)
 
 #if defined(OS_WIN)
 // Emergency "off switch" for new Windows sandbox security mitigation,
 // sandbox::MITIGATION_EXTENSION_POINT_DISABLE.
 const base::Feature kWinSboxDisableExtensionPoints{
     "WinSboxDisableExtensionPoint", base::FEATURE_ENABLED_BY_DEFAULT};
 #endif
 
 }  // namespace features