Why this CL triggers an OilPan crash.

third_party/WebKit/Source/core/page/FrameTree.cpp

Index: third_party/WebKit/Source/core/page/FrameTree.cpp
diff --git a/third_party/WebKit/Source/core/page/FrameTree.cpp b/third_party/WebKit/Source/core/page/FrameTree.cpp
index 29d2a49089d485622075f03d89e80fc5cb4d1aeb..00299ae15f6d9c1470f268ba0ad3d44687451569 100644
--- a/third_party/WebKit/Source/core/page/FrameTree.cpp
+++ b/third_party/WebKit/Source/core/page/FrameTree.cpp
@@ -186,7 +186,7 @@ Frame* FrameTree::Find(const AtomicString& name) const {
 
   // Search the entire tree of each of the other pages in this namespace.
   // FIXME: Is random order OK?
-  for (const Page* other_page : Page::OrdinaryPages()) {
+  for (const Page* other_page : page->RelatedPages()) {
     if (other_page == page || other_page->IsClosing())
       continue;
     for (Frame* frame = other_page->MainFrame(); frame;