Mark WEBGL_compressed_texture_s3tc_srgb as draft

third_party/WebKit/Source/modules/webgl/WebGL2RenderingContext.cpp

 // 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 "modules/webgl/WebGL2RenderingContext.h"
 
 #include "bindings/modules/v8/OffscreenCanvasRenderingContext2DOrWebGLRenderingContextOrWebGL2RenderingContext.h"
 #include "bindings/modules/v8/RenderingContext.h"
 #include "core/frame/LocalFrame.h"
 #include "core/frame/Settings.h"
@@ skipping 80 matching lines @@
 }
 
 ImageBitmap* WebGL2RenderingContext::transferToImageBitmap(ExceptionState& exceptionState)
 {
     NOTIMPLEMENTED();
     return nullptr;
 }
 
 void WebGL2RenderingContext::registerContextExtensions()
 {
+    // TODO(kainino): add DraftExtension flag to some of these before WebGL 2
+    // is rolled out.
+    // https://bugs.chromium.org/p/chromium/issues/detail?id=647892
+
     // Register extensions.
     registerExtension<EXTColorBufferFloat>(m_extColorBufferFloat);
     registerExtension<EXTDisjointTimerQuery>(m_extDisjointTimerQuery);
     registerExtension<EXTTextureFilterAnisotropic>(m_extTextureFilterAnisotropic);
     registerExtension<OESTextureFloatLinear>(m_oesTextureFloatLinear);
     registerExtension<WebGLCompressedTextureASTC>(m_webglCompressedTextureASTC);
     registerExtension<WebGLCompressedTextureATC>(m_webglCompressedTextureATC);
     registerExtension<WebGLCompressedTextureETC1>(m_webglCompressedTextureETC1);
     registerExtension<WebGLCompressedTexturePVRTC>(m_webglCompressedTexturePVRTC);
     registerExtension<WebGLCompressedTextureS3TC>(m_webglCompressedTextureS3TC);
@@ skipping 32 matching lines @@
     visitor->traceWrappers(m_webglCompressedTextureETC1);
     visitor->traceWrappers(m_webglCompressedTexturePVRTC);
     visitor->traceWrappers(m_webglCompressedTextureS3TC);
     visitor->traceWrappers(m_webglCompressedTextureS3TCsRGB);
     visitor->traceWrappers(m_webglDebugRendererInfo);
     visitor->traceWrappers(m_webglDebugShaders);
     visitor->traceWrappers(m_webglLoseContext);
 }
 
 } // namespace blink