Migrate WTF::HashMap::add() to ::insert()

third_party/WebKit/Source/core/layout/svg/LayoutSVGResourceGradient.cpp

 /*
  * Copyright (C) 2006 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2008 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2008 Dirk Schulze <krit@webkit.org>
  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 61 matching lines @@
 
   // Spec: When the geometry of the applicable element has no width or height
   // and objectBoundingBox is specified, then the given effect (e.g. a gradient
   // or a filter) will be ignored.
   FloatRect objectBoundingBox = object.objectBoundingBox();
   if (gradientUnits() == SVGUnitTypes::kSvgUnitTypeObjectboundingbox &&
       objectBoundingBox.isEmpty())
     return SVGPaintServer::invalid();
 
   std::unique_ptr<GradientData>& gradientData =
-      m_gradientMap.add(&object, nullptr).storedValue->value;
+      m_gradientMap.insert(&object, nullptr).storedValue->value;
   if (!gradientData)
     gradientData = WTF::wrapUnique(new GradientData);
 
   // Create gradient object
   if (!gradientData->gradient) {
     gradientData->gradient = buildGradient();
 
     // We want the text bounding box applied to the gradient space transform
     // now, so the gradient shader can use it.
     if (gradientUnits() == SVGUnitTypes::kSvgUnitTypeObjectboundingbox &&
@@ skipping 43 matching lines @@
       return SpreadMethodReflect;
     case SVGSpreadMethodRepeat:
       return SpreadMethodRepeat;
   }
 
   ASSERT_NOT_REACHED();
   return SpreadMethodPad;
 }
 
 }  // namespace blink