Add Digital Asset Links verification for postMessage API

chrome/browser/android/customtabs/origin_verifier.h

Index: chrome/browser/android/customtabs/origin_verifier.h
diff --git a/chrome/browser/android/customtabs/origin_verifier.h b/chrome/browser/android/customtabs/origin_verifier.h
new file mode 100644
index 0000000000000000000000000000000000000000..ae216af65179d046713bdcfd35e18c1062bf7e42
--- /dev/null
+++ b/chrome/browser/android/customtabs/origin_verifier.h
@@ -0,0 +1,54 @@
+// 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.
+
+#ifndef CHROME_BROWSER_ANDROID_CUSTOMTABS_ORIGIN_VERIFIER_H_
+#define CHROME_BROWSER_ANDROID_CUSTOMTABS_ORIGIN_VERIFIER_H_
+
+#include "base/android/scoped_java_ref.h"
+#include "net/url_request/url_fetcher.h"
+#include "net/url_request/url_fetcher_delegate.h"
+#include "net/url_request/url_request_context_getter.h"
+
+namespace base {
+class DictionaryValue;
+}
+
+namespace digital_asset_links {
+class DigitalAssetLinksHandler;
+}
+
+namespace customtabs {
+
+// JNI bridge for OriginVerifier.java
+class OriginVerifier {
+ public:
+  OriginVerifier(JNIEnv* env, jobject obj, jobject jprofile);
+  ~OriginVerifier();
+
+  // Verify origin with the given parameters. No network requests can be made
+  // if the params are null.
+  bool VerifyOrigin(JNIEnv* env,
+                    const base::android::JavaParamRef<jobject>& obj,
+                    const base::android::JavaParamRef<jstring>& j_package_name,
+                    const base::android::JavaParamRef<jstring>& j_fingerprint,
+                    const base::android::JavaParamRef<jstring>& j_origin);
+
+  void Destroy(JNIEnv* env, const base::android::JavaRef<jobject>& obj);
+
+ private:
+  void OnRelationshipCheckComplete(
+      std::unique_ptr<base::DictionaryValue> response);
+
+  std::unique_ptr<digital_asset_links::DigitalAssetLinksHandler>
+      asset_link_handler_;
+
+  base::android::ScopedJavaGlobalRef<jobject> jobject_;
+
+  DISALLOW_COPY_AND_ASSIGN(OriginVerifier);
+};
+
+bool RegisterOriginVerifier(JNIEnv* env);
+}  // namespace customtabs
+
+#endif  // CHROME_BROWSER_ANDROID_CUSTOMTABS_ORIGIN_VERIFIER_H_