Implement screen orientation for out-of-process iframes.

third_party/WebKit/Source/core/frame/LocalDOMWindow.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 511 matching lines @@
   statusbar_ = nullptr;
   toolbar_ = nullptr;
   navigator_ = nullptr;
   media_ = nullptr;
   custom_elements_ = nullptr;
   application_cache_ = nullptr;
 }
 
 void LocalDOMWindow::SendOrientationChangeEvent() {
   ASSERT(RuntimeEnabledFeatures::orientationEventEnabled());
-  ASSERT(GetFrame()->IsMainFrame());
+  DCHECK(GetFrame()->IsLocalRoot());
 
   // Before dispatching the event, build a list of all frames in the page
   // to send the event to, to mitigate side effects from event handlers
   // potentially interfering with others.
-  HeapVector<Member<Frame>> frames;
-  for (Frame* f = GetFrame(); f; f = f->Tree().TraverseNext())
-    frames.push_back(f);
+  HeapVector<Member<LocalFrame>> frames;
+  frames.push_back(GetFrame());
+  for (size_t i = 0; i < frames.size(); i++) {
+    for (Frame* child = frames[i]->Tree().FirstChild(); child;
+         child = child->Tree().NextSibling()) {
+      if (child->IsLocalFrame())
+        frames.push_back(ToLocalFrame(child));
+    }
+  }
 
-  for (size_t i = 0; i < frames.size(); ++i) {
-    if (!frames[i]->IsLocalFrame())
-      continue;
-    ToLocalFrame(frames[i].Get())
-        ->DomWindow()
-        ->DispatchEvent(Event::Create(EventTypeNames::orientationchange));
+  for (LocalFrame* frame : frames) {
+    frame->DomWindow()->DispatchEvent(
+        Event::Create(EventTypeNames::orientationchange));
   }
 }
 
 int LocalDOMWindow::orientation() const {
   ASSERT(RuntimeEnabledFeatures::orientationEventEnabled());
 
   if (!GetFrame() || !GetFrame()->GetPage())
     return 0;
 
   int orientation = GetFrame()
@@ skipping 1127 matching lines @@
   DOMWindow::Trace(visitor);
   Supplementable<LocalDOMWindow>::Trace(visitor);
 }
 
 DEFINE_TRACE_WRAPPERS(LocalDOMWindow) {
   visitor->TraceWrappers(custom_elements_);
   DOMWindow::TraceWrappers(visitor);
 }
 
 }  // namespace blink