Make content::FeaturePolicy implement WebFeaturePolicy, and use it in blink code

content/child/blink_platform_impl.cc

Index: content/child/blink_platform_impl.cc
diff --git a/content/child/blink_platform_impl.cc b/content/child/blink_platform_impl.cc
index 7c6dfda8dbe3b236e86e401a012c9ad968530544..645614aa67d3b869257aed293298fa9ebcd24eee 100644
--- a/content/child/blink_platform_impl.cc
+++ b/content/child/blink_platform_impl.cc
@@ -39,6 +39,7 @@
 #include "content/app/strings/grit/content_strings.h"
 #include "content/child/child_thread_impl.h"
 #include "content/child/content_child_helpers.h"
+#include "content/child/feature_policy/feature_policy_platform.h"
 #include "content/child/notifications/notification_dispatcher.h"
 #include "content/child/notifications/notification_manager.h"
 #include "content/child/push_messaging/push_dispatcher.h"
@@ -856,4 +857,26 @@ int BlinkPlatformImpl::domKeyEnumFromString(const WebString& key_string) {
       ui::KeycodeConverter::KeyStringToDomKey(key_string.utf8()));
 }
 
+blink::WebFeaturePolicy* BlinkPlatformImpl::createFeaturePolicy(
+    const blink::WebFeaturePolicy* parent_policy,
+    const blink::WebParsedFeaturePolicyHeader& policy_header,
+    const blink::WebSecurityOrigin& origin) {
+  std::unique_ptr<FeaturePolicy> policy = FeaturePolicy::CreateFromParentPolicy(
+      static_cast<const FeaturePolicy*>(parent_policy), url::Origin(origin));
+  policy->SetHeaderPolicy(FeaturePolicyHeaderFromWeb(policy_header));
+  return policy.release();
+}
+
+bool BlinkPlatformImpl::isFeatureEnabledByPolicy(
+    const blink::WebFeaturePolicy* policy,
+    blink::WebFeaturePolicyFeature feature) {
+  return static_cast<const FeaturePolicy*>(policy)->IsFeatureEnabled(feature);
+}
+
+void BlinkPlatformImpl::updateFeaturePolicyOrigin(
+    blink::WebFeaturePolicy* policy,
+    const blink::WebSecurityOrigin& origin) {
+  static_cast<FeaturePolicy*>(policy)->SetOrigin(url::Origin(origin));
+}
+
 }  // namespace content