Change Frame to store a Page instead of a FrameHost.

third_party/WebKit/Source/core/frame/RemoteFrame.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/RemoteFrame.h"
 
 #include "bindings/core/v8/WindowProxy.h"
 #include "bindings/core/v8/WindowProxyManager.h"
 #include "core/dom/RemoteSecurityContext.h"
+#include "core/frame/FrameHost.h"
 #include "core/frame/LocalFrame.h"
 #include "core/frame/RemoteDOMWindow.h"
 #include "core/frame/RemoteFrameClient.h"
 #include "core/frame/RemoteFrameView.h"
 #include "core/html/HTMLFrameOwnerElement.h"
 #include "core/layout/api/LayoutPartItem.h"
 #include "core/loader/FrameLoadRequest.h"
 #include "core/loader/FrameLoader.h"
 #include "core/paint/PaintLayer.h"
 #include "platform/PluginScriptForbiddenScope.h"
 #include "platform/UserGestureIndicator.h"
 #include "platform/graphics/GraphicsLayer.h"
 #include "platform/loader/fetch/ResourceRequest.h"
 #include "platform/weborigin/SecurityPolicy.h"
 #include "public/platform/WebLayer.h"
 
 namespace blink {
 
 inline RemoteFrame::RemoteFrame(RemoteFrameClient* client,
                                 FrameHost* host,
                                 FrameOwner* owner)
-    : Frame(client, host, owner, RemoteWindowProxyManager::create(*this)),
+    : Frame(client,
+            host ? &host->page() : nullptr,
+            owner,
+            RemoteWindowProxyManager::create(*this)),
       m_securityContext(RemoteSecurityContext::create()) {
   m_domWindow = RemoteDOMWindow::create(*this);
 }
 
 RemoteFrame* RemoteFrame::create(RemoteFrameClient* client,
                                  FrameHost* host,
                                  FrameOwner* owner) {
   return new RemoteFrame(client, host, owner);
 }
 
@@ skipping 126 matching lines @@
   FrameVector childrenToDetach;
   childrenToDetach.reserveCapacity(tree().childCount());
   for (Frame* child = tree().firstChild(); child;
        child = child->tree().nextSibling())
     childrenToDetach.push_back(child);
   for (const auto& child : childrenToDetach)
     child->detach(FrameDetachType::Remove);
 }
 
 }  // namespace blink