Add some plumbing for the color management of canvases

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

 /*
  * Copyright (C) 2009 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 895 matching lines @@
 
 WebGLRenderingContextBase::WebGLRenderingContextBase(HTMLCanvasElement* passedCanvas,
     std::unique_ptr<WebGraphicsContext3DProvider> contextProvider,
     const WebGLContextAttributes& requestedAttributes, unsigned version)
     : WebGLRenderingContextBase(passedCanvas, nullptr, std::move(contextProvider), requestedAttributes, version)
 { }
 
 WebGLRenderingContextBase::WebGLRenderingContextBase(HTMLCanvasElement* passedCanvas,
     OffscreenCanvas* passedOffscreenCanvas, std::unique_ptr<WebGraphicsContext3DProvider> contextProvider,
     const WebGLContextAttributes& requestedAttributes, unsigned version)
-    : CanvasRenderingContext(passedCanvas, passedOffscreenCanvas)
+    : CanvasRenderingContext(passedCanvas, passedOffscreenCanvas, "")
     , m_isHidden(false)
     , m_contextLostMode(NotLostContext)
     , m_autoRecoveryMethod(Manual)
     , m_dispatchContextLostEventTimer(this, &WebGLRenderingContextBase::dispatchContextLostEvent)
     , m_restoreAllowed(false)
     , m_restoreTimer(this, &WebGLRenderingContextBase::maybeRestoreContext)
     , m_preservedDefaultVAOObjectWrapper(false)
     , m_generatedImageCache(4)
     , m_requestedAttributes(requestedAttributes)
     , m_synthesizedErrorsToConsole(true)
@@ skipping 5568 matching lines @@
         contextGL()->PixelStorei(GL_UNPACK_ALIGNMENT, 1);
 }
 
 void WebGLRenderingContextBase::restoreUnpackParameters()
 {
     if (m_unpackAlignment != 1)
         contextGL()->PixelStorei(GL_UNPACK_ALIGNMENT, m_unpackAlignment);
 }
 
 } // namespace blink