Add Gradient::addColorStops method

third_party/WebKit/Source/platform/graphics/Gradient.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Alp Toker <alp@atoker.com>
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
@@ skipping 68 matching lines @@
   if (m_stops.isEmpty()) {
     m_stopsSorted = true;
   } else {
     m_stopsSorted = m_stopsSorted && compareStops(m_stops.back(), stop);
   }
 
   m_stops.push_back(stop);
   m_cachedShader.reset();
 }
 
+void Gradient::addColorStops(const Vector<Gradient::ColorStop>& stops) {
+  for (const auto& stop : stops)
+    addColorStop(stop);
+}
+
 void Gradient::sortStopsIfNecessary() {
   if (m_stopsSorted)
     return;
 
   m_stopsSorted = true;
 
   if (!m_stops.size())
     return;
 
   std::stable_sort(m_stops.begin(), m_stops.end(), compareStops);
@@ skipping 155 matching lines @@
   if (!m_cachedShader || localMatrix != m_cachedShader->getLocalMatrix())
     m_cachedShader = createShader(localMatrix);
 
   flags.setShader(m_cachedShader);
 
   // Legacy behavior: gradients are always dithered.
   flags.setDither(true);
 }
 
 }  // namespace blink