Implement OffscreenCanvas.WebGL2Context TransferToImageBitmap

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 <memory>
 #include "bindings/modules/v8/OffscreenCanvasRenderingContext2DOrWebGLRenderingContextOrWebGL2RenderingContext.h"
 #include "bindings/modules/v8/RenderingContext.h"
 #include "core/frame/LocalFrame.h"
@@ skipping 130 matching lines @@
   result.setWebGL2RenderingContext(this);
 }
 
 void WebGL2RenderingContext::SetOffscreenCanvasGetContextResult(
     OffscreenRenderingContext& result) {
   result.setWebGL2RenderingContext(this);
 }
 
 ImageBitmap* WebGL2RenderingContext::TransferToImageBitmap(
     ScriptState* script_state) {
-  NOTIMPLEMENTED();
-  return nullptr;
+  return TransferToImageBitmapBase(script_state);
 }
 
 void WebGL2RenderingContext::RegisterContextExtensions() {
   // Register extensions.
   RegisterExtension<EXTColorBufferFloat>(ext_color_buffer_float_);
   RegisterExtension<EXTDisjointTimerQueryWebGL2>(
       ext_disjoint_timer_query_web_gl2_);
   RegisterExtension<EXTTextureFilterAnisotropic>(
       ext_texture_filter_anisotropic_);
   RegisterExtension<OESTextureFloatLinear>(oes_texture_float_linear_);
@@ skipping 31 matching lines @@
   visitor->Trace(webgl_lose_context_);
   WebGL2RenderingContextBase::Trace(visitor);
 }
 
 DEFINE_TRACE_WRAPPERS(WebGL2RenderingContext) {
   // Extensions are managed by WebGL2RenderingContextBase.
   WebGL2RenderingContextBase::TraceWrappers(visitor);
 }
 
 }  // namespace blink