Revert NotImplemented() changes in r383029 and r383047.

third_party/WebKit/Source/modules/offscreencanvas2d/OffscreenCanvasRenderingContext2D.cpp

 // Copyright 2016 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/offscreencanvas2d/OffscreenCanvasRenderingContext2D.h"
 
 #include "bindings/modules/v8/UnionTypesModules.h"
 #include "core/frame/ImageBitmap.h"
+#include "platform/NotImplemented.h"
 #include "platform/graphics/ImageBuffer.h"
 #include "platform/graphics/StaticBitmapImage.h"
 #include "wtf/Assertions.h"
 
 #define UNIMPLEMENTED ASSERT_NOT_REACHED
 
 namespace blink {
 
 OffscreenCanvasRenderingContext2D::~OffscreenCanvasRenderingContext2D()
 {
@@ skipping 17 matching lines @@
     return m_originClean;
 }
 
 void OffscreenCanvasRenderingContext2D::setOriginTainted()
 {
     m_originClean = false;
 }
 
 bool OffscreenCanvasRenderingContext2D::wouldTaintOrigin(CanvasImageSource* source)
 {
-    NOTIMPLEMENTED();
+    notImplemented();
     return false;
 }
 
 int OffscreenCanvasRenderingContext2D::width() const
 {
     return getOffscreenCanvas()->width();
 }
 
 int OffscreenCanvasRenderingContext2D::height() const
 {
@@ skipping 84 matching lines @@
     }
 #endif
 }
 
 bool OffscreenCanvasRenderingContext2D::isContextLost() const
 {
     return false;
 }
 
 }