Initial Implementation of Iframe Attribute for Feature Policy (Part 1)

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

Index: third_party/WebKit/Source/core/html/HTMLIFrameElement.cpp
diff --git a/third_party/WebKit/Source/core/html/HTMLIFrameElement.cpp b/third_party/WebKit/Source/core/html/HTMLIFrameElement.cpp
index 0ac2d2966cbac6d8d8208423e76f45e6e820f7f5..b95120597c5e8e93838348787c43b88cfcd63a15 100644
--- a/third_party/WebKit/Source/core/html/HTMLIFrameElement.cpp
+++ b/third_party/WebKit/Source/core/html/HTMLIFrameElement.cpp
@@ -40,6 +40,7 @@ inline HTMLIFrameElement::HTMLIFrameElement(Document& document)
     : HTMLFrameElementBase(iframeTag, document),
       m_didLoadNonEmptyDocument(false),
       m_sandbox(HTMLIFrameElementSandbox::create(this)),
+      m_allow(HTMLIFrameElementAllow::create(this)),
       m_referrerPolicy(ReferrerPolicyDefault) {}
 
 DEFINE_NODE_FACTORY(HTMLIFrameElement)
@@ -47,6 +48,7 @@ DEFINE_NODE_FACTORY(HTMLIFrameElement)
 DEFINE_TRACE(HTMLIFrameElement) {
   visitor->trace(m_sandbox);
   visitor->trace(m_permissions);
+  visitor->trace(m_allow);
   HTMLFrameElementBase::trace(visitor);
   Supplementable<HTMLIFrameElement>::trace(visitor);
 }
@@ -63,6 +65,10 @@ DOMTokenList* HTMLIFrameElement::permissions() const {
   return m_permissions.get();
 }
 
+DOMTokenList* HTMLIFrameElement::allow() const {
+  return m_allow.get();
+}
+
 bool HTMLIFrameElement::isPresentationAttribute(
     const QualifiedName& name) const {
   if (name == widthAttr || name == heightAttr || name == alignAttr ||
@@ -158,6 +164,9 @@ void HTMLIFrameElement::parseAttribute(
     m_csp = value;
     if (m_csp != oldCSP)
       frameOwnerPropertiesChanged();
+  } else if (RuntimeEnabledFeatures::featurePolicyEnabled() &&
+             name == allowAttr) {
+    m_allow->setValue(value);
   } else {
     if (name == srcAttr)
       logUpdateAttributeIfIsolatedWorldAndInDocument("iframe", params);
@@ -220,6 +229,19 @@ void HTMLIFrameElement::sandboxValueWasSet() {
   setSynchronizedLazyAttribute(sandboxAttr, m_sandbox->value());
 }
 
+void HTMLIFrameElement::allowValueWasSet() {
+  String invalidTokens;
+  m_allowedFeatureNames = m_allow->parseAllowedFeatureNames(invalidTokens);
+  if (!invalidTokens.isNull()) {
+    document().addConsoleMessage(ConsoleMessage::create(
+        OtherMessageSource, ErrorMessageLevel,
+        "Error while parsing the 'allow' attribute: " + invalidTokens));
+  }
+  setSynchronizedLazyAttribute(allowAttr, m_allow->value());
+  // TODO(lunalu): Once allowedFeatureNames is passed to frame owner, call
+  // frameOwnerPropertiesChanged.
+}
+
 ReferrerPolicy HTMLIFrameElement::referrerPolicyAttribute() {
   return m_referrerPolicy;
 }