Move content-side Feature Policy code into content/{common,child}/feature_policy

content/child/feature_policy/feature_policy_platform.cc

Index: content/child/feature_policy/feature_policy_platform.cc
diff --git a/content/child/feature_policy/feature_policy_platform.cc b/content/child/feature_policy/feature_policy_platform.cc
new file mode 100644
index 0000000000000000000000000000000000000000..5c520f152dc494d0fc5331148116bb9f12b97091
--- /dev/null
+++ b/content/child/feature_policy/feature_policy_platform.cc
@@ -0,0 +1,42 @@
+// Copyright 2017 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"
+
+namespace content {
+
+ParsedFeaturePolicyHeader FeaturePolicyHeaderFromWeb(
+    const blink::WebParsedFeaturePolicyHeader& web_feature_policy_header) {
+  ParsedFeaturePolicyHeader result;
+  for (const blink::WebParsedFeaturePolicyDeclaration& web_declaration :
+       web_feature_policy_header) {
+    ParsedFeaturePolicyDeclaration declaration;
+    declaration.feature_name = web_declaration.featureName.utf8();
+    declaration.matches_all_origins = web_declaration.matchesAllOrigins;
+    for (const blink::WebSecurityOrigin& web_origin : web_declaration.origins)
+      declaration.origins.push_back(web_origin);
+    result.push_back(declaration);
+  }
+  return result;
+}
+
+blink::WebParsedFeaturePolicyHeader FeaturePolicyHeaderToWeb(
+    const ParsedFeaturePolicyHeader& feature_policy_header) {
+  std::vector<blink::WebParsedFeaturePolicyDeclaration> result;
+  for (const ParsedFeaturePolicyDeclaration& declaration :
+       feature_policy_header) {
+    blink::WebParsedFeaturePolicyDeclaration web_declaration;
+    web_declaration.featureName =
+        blink::WebString::fromUTF8(declaration.feature_name);
+    web_declaration.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.origins = web_origins;
+    result.push_back(web_declaration);
+  }
+  return result;
+}
+
+}  // namespace content