Move Canvas and WebGL Image Chromium behind experiments.

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.
 
 // Enables brotli "Accept-Encoding" advertising and "Content-Encoding" support.
 // Brotli format specification: http://www.ietf.org/id/draft-alakuijala-brotli
 const base::Feature kBrotliEncoding{"brotli-encoding",
                                     base::FEATURE_ENABLED_BY_DEFAULT};
 
+// If Canvas2D Image Chromium is allowed, this feature controls whether it is
+// enabled.
+const base::Feature kCanvas2DImageChromium{"Canvas2DImageChromium",
+                                           base::FEATURE_ENABLED_BY_DEFAULT};
+
 // Enables the credential management API:
 // https://w3c.github.io/webappsec-credential-management/
 const base::Feature kCredentialManagementAPI{"CredentialManagementAPI",
                                              base::FEATURE_ENABLED_BY_DEFAULT};
 
 // Enable GPU Rasterization by default. This can still be overridden by
 // --force-gpu-rasterization or --disable-gpu-rasterization.
 const base::Feature kDefaultEnableGpuRasterization{
     "DefaultEnableGpuRasterization", base::FEATURE_DISABLED_BY_DEFAULT};
 
@@ skipping 76 matching lines @@
 
 // Enables token binding
 // (https://www.ietf.org/id/draft-ietf-tokbind-protocol-04.txt).
 const base::Feature kTokenBinding{"token-binding",
                                   base::FEATURE_DISABLED_BY_DEFAULT};
 
 // Weak MemoryCache (https://crbug.com/603462).
 const base::Feature kWeakMemoryCache{"WeakMemoryCache",
                                      base::FEATURE_DISABLED_BY_DEFAULT};
 
+// If WebGL Image Chromium is allowed, this feature controls whether it is
+// enabled.
+const base::Feature kWebGLImageChromium{"WebGLImageChromium",
+                                        base::FEATURE_ENABLED_BY_DEFAULT};
+
 // Makes WebRTC use ECDSA certs by default (i.e., when no cert type was
 // specified in JS).
 const base::Feature kWebRtcEcdsaDefault {"WebRTC-EnableWebRtcEcdsa",
                                          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};
 
 #if defined(OS_ANDROID)
 // Use IME's own thread instead of using main UI thread. It also means that
 // we will not use replica editor and do a round trip to renderer to synchronize
 // with Blink data.
 const base::Feature kImeThread{"ImeThread", base::FEATURE_DISABLED_BY_DEFAULT};
 
 // FeatureList definition for the Seccomp field trial.
 const base::Feature kSeccompSandboxAndroid{"SeccompSandboxAndroid",
                                            base::FEATURE_DISABLED_BY_DEFAULT};
 #endif
 
 #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