[NotLanded] Implement the fetching algorithm of the Web Manifest.

Source/web/WebRemoteFrameImpl.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 "config.h"
 #include "web/WebRemoteFrameImpl.h"
 
 #include "core/frame/FrameOwner.h"
 #include "core/frame/RemoteFrame.h"
 #include "core/page/Page.h"
@@ skipping 766 matching lines @@
     ASSERT_NOT_REACHED();
     return false;
 }
 
 WebString WebRemoteFrameImpl::layerTreeAsText(bool showDebugInfo) const
 {
     ASSERT_NOT_REACHED();
     return WebString();
 }
 
+void WebRemoteFrameImpl::requestManifest(WebManifestRequest&) const
+{
+    ASSERT_NOT_REACHED();
+}
+
 WebLocalFrame* WebRemoteFrameImpl::createLocalChild(const WebString& name, WebFrameClient* client)
 {
     WebLocalFrameImpl* child = toWebLocalFrameImpl(WebLocalFrame::create(client));
     HashMap<WebFrame*, OwnPtr<FrameOwner> >::AddResult result =
         m_ownersForChildren.add(child, adoptPtr(new RemoteBridgeFrameOwner(child)));
     appendChild(child);
     // FIXME: currently this calls LocalFrame::init() on the created LocalFrame, which may
     // result in the browser observing two navigations to about:blank (one from the initial
     // frame creation, and one from swapping it into the remote process). FrameLoader might
     // need a special initialization function for this case to avoid that duplicate navigation.
@@ skipping 27 matching lines @@
 
 WebRemoteFrameImpl* WebRemoteFrameImpl::fromFrame(RemoteFrame& frame)
 {
     if (!frame.client())
         return 0;
     return static_cast<RemoteFrameClient*>(frame.client())->webFrame();
 }
 
 } // namespace blink