Remove Frame::host() method

third_party/WebKit/Source/core/frame/DOMWindow.cpp

 // Copyright 2014 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/frame/DOMWindow.h"
 
 #include <memory>
 #include "core/dom/Document.h"
 #include "core/dom/ExecutionContext.h"
 #include "core/dom/SecurityContext.h"
@@ skipping 51 matching lines @@
   return this;
 }
 
 Location* DOMWindow::location() const {
   if (!m_location)
     m_location = Location::create(const_cast<DOMWindow*>(this));
   return m_location.get();
 }
 
 bool DOMWindow::closed() const {
-  return m_windowIsClosing || !frame() || !frame()->host();
+  return m_windowIsClosing || !frame() || !frame()->page();
 }
 
 unsigned DOMWindow::length() const {
   return frame() ? frame()->tree().scopedChildCount() : 0;
 }
 
 DOMWindow* DOMWindow::self() const {
   if (!frame())
     return nullptr;
 
@@ skipping 28 matching lines @@
   if (!frame())
     return nullptr;
 
   Frame* child = frame()->tree().scopedChild(index);
   return child ? child->domWindow() : nullptr;
 }
 
 bool DOMWindow::isCurrentlyDisplayedInFrame() const {
   if (frame())
     SECURITY_CHECK(frame()->domWindow() == this);
-  return frame() && frame()->host();
+  return frame() && frame()->page();
 }
 
 bool DOMWindow::isInsecureScriptAccess(LocalDOMWindow& callingWindow,
                                        const KURL& url) {
   if (!url.protocolIsJavaScript())
     return false;
 
   // If this DOMWindow isn't currently active in the Frame, then there's no
   // way we should allow the access.
   if (isCurrentlyDisplayedInFrame()) {
@@ skipping 290 matching lines @@
 }
 
 DEFINE_TRACE(DOMWindow) {
   visitor->trace(m_frame);
   visitor->trace(m_inputCapabilities);
   visitor->trace(m_location);
   EventTargetWithInlineData::trace(visitor);
 }
 
 }  // namespace blink