Replicate feature policy container policies.

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 097190ad126078692b3ade36bd3d0efe4c140a42..db5b4a6addb8db04e009a7567fff4254275eb0c6 100644
--- a/third_party/WebKit/Source/core/html/HTMLFrameOwnerElement.cpp
+++ b/third_party/WebKit/Source/core/html/HTMLFrameOwnerElement.cpp
@@ -206,9 +206,10 @@ void HTMLFrameOwnerElement::setSandboxFlags(SandboxFlags flags) {
   m_sandboxFlags = flags;
   // Don't notify about updates if contentFrame() is null, for example when
   // the subframe hasn't been created yet.
-  if (contentFrame())
-    document().frame()->loader().client()->didChangeSandboxFlags(contentFrame(),
-                                                                 flags);
+  if (contentFrame()) {
+    document().frame()->loader().client()->didChangeFramePolicy(
+        contentFrame(), m_sandboxFlags, m_containerPolicy);
+  }
 }
 
 bool HTMLFrameOwnerElement::isKeyboardFocusable() const {
@@ -223,7 +224,19 @@ void HTMLFrameOwnerElement::disposeWidgetSoon(FrameViewBase* frameViewBase) {
   frameViewBase->dispose();
 }
 
+void HTMLFrameOwnerElement::updateContainerPolicy() {
+  m_containerPolicy = getContainerPolicyFromAllowedFeatures(
+      allowedFeatures(), SecurityOrigin::create(m_absoluteURL));

[raymes, 2017/04/05 05:43:22]

Hmm, how do payment request and fullscreen get factored in?

[iclelland, 2017/04/05 14:51:13]

Luna was doing that separately in https://codereview.chromium.org/2767983003/

+  // Don't notify about updates if contentFrame() is null, for example when
+  // the subframe hasn't been created yet.
+  if (contentFrame()) {
+    document().frame()->loader().client()->didChangeFramePolicy(
+        contentFrame(), m_sandboxFlags, m_containerPolicy);
+  }
+}
+
 void HTMLFrameOwnerElement::frameOwnerPropertiesChanged() {
+  updateContainerPolicy();
   // Don't notify about updates if contentFrame() is null, for example when
   // the subframe hasn't been created yet.
   if (contentFrame())
@@ -240,6 +253,10 @@ HTMLFrameOwnerElement::allowedFeatures() const {
   return features;
 }
 
+const WebParsedFeaturePolicy& HTMLFrameOwnerElement::containerPolicy() const {
+  return m_containerPolicy;
+}
+
 Document* HTMLFrameOwnerElement::getSVGDocument(
     ExceptionState& exceptionState) const {
   Document* doc = contentDocument();
@@ -308,6 +325,9 @@ bool HTMLFrameOwnerElement::loadOrRedirectSubframe(
     const KURL& url,
     const AtomicString& frameName,
     bool replaceCurrentItem) {
+  m_absoluteURL = url;
+  updateContainerPolicy();
+
   LocalFrame* parentFrame = document().frame();
   if (contentFrame()) {
     contentFrame()->navigate(document(), url, replaceCurrentItem,