Implement NavigationThrottle::BLOCK_REQUEST_AND_COLLAPSE.

third_party/WebKit/Source/web/WebFrame.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 "public/web/WebFrame.h"
 
 #include "bindings/core/v8/WindowProxyManager.h"
 #include "core/HTMLNames.h"
 #include "core/frame/FrameView.h"
 #include "core/frame/LocalFrame.h"
@@ skipping 152 matching lines @@
   owner->SetScrollingMode(properties.scrolling_mode);
   owner->SetMarginWidth(properties.margin_width);
   owner->SetMarginHeight(properties.margin_height);
   owner->SetAllowFullscreen(properties.allow_fullscreen);
   owner->SetAllowPaymentRequest(properties.allow_payment_request);
   owner->SetIsDisplayNone(properties.is_display_none);
   owner->SetCsp(properties.required_csp);
   owner->SetAllowedFeatures(properties.allowed_features);
 }
 
+void WebFrame::Collapse(bool collapsed) {
+  FrameOwner* owner = ToCoreFrame(*this)->Owner();
+  DCHECK(owner->IsLocal());
+  ToHTMLFrameOwnerElement(owner)->SetCollapsedByClient(collapsed);
+}
+
 WebFrame* WebFrame::Opener() const {
   return opener_;
 }
 
 void WebFrame::SetOpener(WebFrame* opener) {
   if (opener_)
     opener_->opened_frame_tracker_->Remove(this);
   if (opener)
     opener->opened_frame_tracker_->Add(this);
   opener_ = opener;
@@ skipping 150 matching lines @@
 Frame* WebFrame::ToCoreFrame(const WebFrame& frame) {
   if (frame.IsWebLocalFrame())
     return ToWebLocalFrameImpl(frame).GetFrame();
   if (frame.IsWebRemoteFrame())
     return ToWebRemoteFrameImpl(frame).GetFrame();
   NOTREACHED();
   return nullptr;
 }
 
 }  // namespace blink