Rename Supplement::host() to Supplement::supplementable()

third_party/WebKit/Source/modules/csspaint/WindowPaintWorklet.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/csspaint/WindowPaintWorklet.h"
 
 #include "core/frame/LocalDOMWindow.h"
 #include "core/frame/LocalFrame.h"
 #include "modules/csspaint/PaintWorklet.h"
 
@@ skipping 16 matching lines @@
   }
   return *supplement;
 }
 
 // static
 Worklet* WindowPaintWorklet::paintWorklet(DOMWindow& window) {
   return from(toLocalDOMWindow(window)).paintWorklet();
 }
 
 PaintWorklet* WindowPaintWorklet::paintWorklet() {
-  if (!m_paintWorklet && host()->frame())
-    m_paintWorklet = PaintWorklet::create(host()->frame());
+  if (!m_paintWorklet && supplementable()->frame())
+    m_paintWorklet = PaintWorklet::create(supplementable()->frame());
   return m_paintWorklet.get();
 }
 
 DEFINE_TRACE(WindowPaintWorklet) {
   visitor->trace(m_paintWorklet);
   Supplement<LocalDOMWindow>::trace(visitor);
 }
 
 }  // namespace blink