Implement NavigationThrottle::BLOCK_REQUEST_AND_COLLAPSE.

third_party/WebKit/Source/core/html/HTMLFrameOwnerElement.cpp

Index: third_party/WebKit/Source/core/html/HTMLFrameOwnerElement.cpp
diff --git a/third_party/WebKit/Source/core/html/HTMLFrameOwnerElement.cpp b/third_party/WebKit/Source/core/html/HTMLFrameOwnerElement.cpp
index db5edd50ba280da15bdc545b2751c8f154053034..c1b3208d00bb44f5d1e495cfa7ebc9b9c80e9e3f 100644
--- a/third_party/WebKit/Source/core/html/HTMLFrameOwnerElement.cpp
+++ b/third_party/WebKit/Source/core/html/HTMLFrameOwnerElement.cpp
@@ -161,6 +161,7 @@ void HTMLFrameOwnerElement::SetContentFrame(Frame& frame) {
   DCHECK(!content_frame_ || content_frame_->Owner() != this);
   // Disconnected frames should not be allowed to load.
   DCHECK(isConnected());
+

[dcheng, 2017/05/10 06:59:46]

Revert this, it's not a bad formatting cleanup, but there's no other relevant
changes in this file.

[engedy, 2017/05/15 13:35:51]

Done, sorry for not noticing this.

   content_frame_ = &frame;
 
   for (ContainerNode* node = this; node; node = node->ParentOrShadowHostNode())