Move most Feature Policy code into content/

content/child/feature_policy/feature_policy_platform.cc

+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "content/child/feature_policy/feature_policy_platform.h"
+
+#include "base/macros.h"
+#include "base/memory/ptr_util.h"
+
+namespace content {
+
+FeaturePolicyHeader FeaturePolicyHeaderFromWeb(
+    const blink::WebParsedFeaturePolicyHeader& web_feature_policy_header) {
+  FeaturePolicyHeader result;
+  for (const blink::WebParsedFeaturePolicyDeclaration& web_declaration :
+       web_feature_policy_header) {
+    FeaturePolicyParsedDeclaration declaration;
+    declaration.feature_name = web_declaration.featureName.utf8();
+    declaration.matches_all_origins =
+        web_declaration.whitelist.matchesAllOrigins;
+    for (const blink::WebSecurityOrigin& web_origin :
+         web_declaration.whitelist.origins)
+      declaration.origins.push_back(web_origin);
+    result.push_back(declaration);
+  }
+  return result;
+}
+
+blink::WebParsedFeaturePolicyHeader FeaturePolicyHeaderToWeb(
+    const FeaturePolicyHeader& feature_policy_header) {
+  std::vector<blink::WebParsedFeaturePolicyDeclaration> result;
+  for (const FeaturePolicyParsedDeclaration& declaration :
+       feature_policy_header) {
+    blink::WebParsedFeaturePolicyDeclaration web_declaration;
+    web_declaration.featureName =
+        blink::WebString::fromUTF8(declaration.feature_name);
+    web_declaration.whitelist.matchesAllOrigins =
+        declaration.matches_all_origins;
+    std::vector<blink::WebSecurityOrigin> web_origins;
+    for (const url::Origin& origin : declaration.origins)
+      web_origins.push_back(origin);
+    web_declaration.whitelist.origins = web_origins;
+    result.push_back(web_declaration);
+  }
+  return result;
+}
+
+}  // namespace content