Move ScriptState::GetExecutionContext (Part 4)

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"
 #include "core/frame/ImageBitmap.h"
 #include "core/html/ImageData.h"
 #include "core/html/canvas/CanvasAsyncBlobCreator.h"
 #include "core/html/canvas/CanvasContextCreationAttributes.h"
 #include "core/html/canvas/CanvasRenderingContext.h"
 #include "core/html/canvas/CanvasRenderingContextFactory.h"
 #include "platform/graphics/Image.h"
 #include "platform/graphics/ImageBuffer.h"
 #include "platform/graphics/OffscreenCanvasFrameDispatcherImpl.h"
@@ skipping 311 matching lines @@
   }
   if (!image_data) {
     exception_state.ThrowDOMException(
         kInvalidStateError, "OffscreenCanvas object has no rendering contexts");
     return exception_state.Reject(script_state);
   }
 
   ScriptPromiseResolver* resolver = ScriptPromiseResolver::Create(script_state);
 
   Document* document =
-      script_state->GetExecutionContext()->IsDocument()
-          ? static_cast<Document*>(script_state->GetExecutionContext())
+      ExecutionContext::From(script_state)->IsDocument()
+          ? static_cast<Document*>(ExecutionContext::From(script_state))
           : nullptr;
 
   CanvasAsyncBlobCreator* async_creator = CanvasAsyncBlobCreator::Create(
       image_data->data(), encoding_mime_type, image_data->size(), start_time,
       document, resolver);
 
   async_creator->ScheduleAsyncBlobCreation(options.quality());
 
   return resolver->Promise();
 }
 
 DEFINE_TRACE(OffscreenCanvas) {
   visitor->Trace(context_);
   visitor->Trace(execution_context_);
   visitor->Trace(commit_promise_resolver_);
   EventTargetWithInlineData::Trace(visitor);
 }
 
 }  // namespace blink