Canvas2D on WebGL texture

third_party/WebKit/Source/core/offscreencanvas/OffscreenCanvas.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 "core/offscreencanvas/OffscreenCanvas.h"
 
 #include <memory>
 #include "core/dom/ExceptionCode.h"
 #include "core/dom/ExecutionContext.h"
 #include "core/fileapi/Blob.h"
@@ skipping 182 matching lines @@
 
 OffscreenCanvas::ContextFactoryVector&
 OffscreenCanvas::RenderingContextFactories() {
   DEFINE_STATIC_LOCAL(ContextFactoryVector, context_factories,
                       (CanvasRenderingContext::kContextTypeCount));
   return context_factories;
 }
 
 CanvasRenderingContextFactory* OffscreenCanvas::GetRenderingContextFactory(
     int type) {
-  ASSERT(type < CanvasRenderingContext::kContextTypeCount);
+  DCHECK(type < CanvasRenderingContext::kContextTypeCount);
   return RenderingContextFactories()[type].get();
 }
 
 void OffscreenCanvas::RegisterRenderingContextFactory(
     std::unique_ptr<CanvasRenderingContextFactory> rendering_context_factory) {
   CanvasRenderingContext::ContextType type =
       rendering_context_factory->GetContextType();
-  ASSERT(type < CanvasRenderingContext::kContextTypeCount);
+  DCHECK(type < CanvasRenderingContext::kContextTypeCount);
   DCHECK(!RenderingContextFactories()[type]);
   RenderingContextFactories()[type] = std::move(rendering_context_factory);
 }
 
 bool OffscreenCanvas::OriginClean() const {
   return origin_clean_ && !disable_reading_from_canvas_;
 }
 
 bool OffscreenCanvas::IsPaintable() const {
   if (!context_)
@@ skipping 180 matching lines @@
 }
 
 DEFINE_TRACE(OffscreenCanvas) {
   visitor->Trace(context_);
   visitor->Trace(execution_context_);
   visitor->Trace(commit_promise_resolver_);
   EventTargetWithInlineData::Trace(visitor);
 }
 
 }  // namespace blink