Add WebViewTrustedVaultClient to //ios/web_view

This is a no op implementation for now.

Bug: 1266130
Change-Id: If3f953ad724a674274afa5d90906a3401f487ca7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3257940
Commit-Queue: John Wu <jzw@chromium.org>
Reviewed-by: Hiroshi Ichikawa <ichikawa@chromium.org>
Cr-Commit-Position: refs/heads/main@{#938381}

ios/web_view/BUILD.gn

@@ -205,6 +205,8 @@ source_set("web_view_sources") {
     "internal/sync/web_view_sync_invalidations_service_factory.mm",
     "internal/sync/web_view_sync_service_factory.h",
     "internal/sync/web_view_sync_service_factory.mm",
+    "internal/sync/web_view_trusted_vault_client.h",
+    "internal/sync/web_view_trusted_vault_client.mm",
     "internal/translate/cwv_translation_controller.mm",
     "internal/translate/cwv_translation_controller_internal.h",
     "internal/translate/cwv_translation_language.mm",

ios/web_view/internal/sync/web_view_sync_client.h

@@ -80,6 +80,7 @@ class WebViewSyncClient : public browser_sync::BrowserSyncClient {
 
   std::unique_ptr<browser_sync::ProfileSyncComponentsFactoryImpl>
       component_factory_;
+  std::unique_ptr<syncer::TrustedVaultClient> trusted_vault_client_;
 };
 
 }  // namespace ios_web_view

ios/web_view/internal/sync/web_view_sync_client.mm

@@ -31,6 +31,7 @@
 #import "ios/web_view/internal/sync/web_view_model_type_store_service_factory.h"
 #import "ios/web_view/internal/sync/web_view_profile_invalidation_provider_factory.h"
 #import "ios/web_view/internal/sync/web_view_sync_invalidations_service_factory.h"
+#include "ios/web_view/internal/sync/web_view_trusted_vault_client.h"
 #include "ios/web_view/internal/webdata_services/web_view_web_data_service_wrapper_factory.h"
 
 #if !defined(__has_feature) || !__has_feature(objc_arc)
@@ -107,6 +108,7 @@
           profile_web_data_service_, account_web_data_service_,
           profile_password_store_, account_password_store_,
           /*bookmark_sync_service=*/nullptr);
+  trusted_vault_client_ = std::make_unique<WebViewTrustedVaultClient>();
 }
 
 WebViewSyncClient::~WebViewSyncClient() {}
@@ -180,7 +182,7 @@
 }
 
 syncer::TrustedVaultClient* WebViewSyncClient::GetTrustedVaultClient() {
-  return nullptr;
+  return trusted_vault_client_.get();
 }
 
 scoped_refptr<syncer::ExtensionsActivity>

ios/web_view/internal/sync/web_view_trusted_vault_client.h

@@ -0,0 +1,47 @@
+// Copyright 2021 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 IOS_WEB_VIEW_INTERNAL_SYNC_WEB_VIEW_TRUSTED_VAULT_CLIENT_H_
+#define IOS_WEB_VIEW_INTERNAL_SYNC_WEB_VIEW_TRUSTED_VAULT_CLIENT_H_
+
+#include "components/sync/driver/trusted_vault_client.h"
+
+namespace ios_web_view {
+
+// ChromeWebView implementation of TrustedVaultClient.
+// This class uses the Chrome trusted vault service to store the shared keys.
+class WebViewTrustedVaultClient : public syncer::TrustedVaultClient {
+ public:
+  explicit WebViewTrustedVaultClient();
+  ~WebViewTrustedVaultClient() override;
+
+  // TrustedVaultClient implementation.
+  void AddObserver(Observer* observer) override;
+  void RemoveObserver(Observer* observer) override;
+  void FetchKeys(
+      const CoreAccountInfo& account_info,
+      base::OnceCallback<void(const std::vector<std::vector<uint8_t>>&)>
+          callback) override;
+  void StoreKeys(const std::string& gaia_id,
+                 const std::vector<std::vector<uint8_t>>& keys,
+                 int last_key_version) override;
+  void MarkLocalKeysAsStale(const CoreAccountInfo& account_info,
+                            base::OnceCallback<void(bool)> callback) override;
+  void GetIsRecoverabilityDegraded(
+      const CoreAccountInfo& account_info,
+      base::OnceCallback<void(bool)> callback) override;
+  void AddTrustedRecoveryMethod(const std::string& gaia_id,
+                                const std::vector<uint8_t>& public_key,
+                                int method_type_hint,
+                                base::OnceClosure callback) override;
+
+  // Not copyable or movable
+  WebViewTrustedVaultClient(const WebViewTrustedVaultClient&) = delete;
+  WebViewTrustedVaultClient& operator=(const WebViewTrustedVaultClient&) =
+      delete;
+};
+
+}  // namespace ios_web_view
+
+#endif  // IOS_WEB_VIEW_INTERNAL_SYNC_WEB_VIEW_TRUSTED_VAULT_CLIENT_H_

ios/web_view/internal/sync/web_view_trusted_vault_client.mm

@@ -0,0 +1,65 @@
+// Copyright 2021 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 "ios/web_view/internal/sync/web_view_trusted_vault_client.h"
+
+#include "base/callback.h"
+#include "base/notreached.h"
+#include "components/signin/public/identity_manager/account_info.h"
+
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
+namespace ios_web_view {
+
+WebViewTrustedVaultClient::WebViewTrustedVaultClient() {}
+
+WebViewTrustedVaultClient::~WebViewTrustedVaultClient() = default;
+
+void WebViewTrustedVaultClient::AddObserver(Observer* observer) {
+  // TODO(crbug.com/1266130): Implement this.
+}
+
+void WebViewTrustedVaultClient::RemoveObserver(Observer* observer) {
+  // TODO(crbug.com/1266130): Implement this.
+}
+
+void WebViewTrustedVaultClient::FetchKeys(
+    const CoreAccountInfo& account_info,
+    base::OnceCallback<void(const std::vector<std::vector<uint8_t>>&)>
+        callback) {
+  // TODO(crbug.com/1266130): Implement this.
+}
+
+void WebViewTrustedVaultClient::StoreKeys(
+    const std::string& gaia_id,
+    const std::vector<std::vector<uint8_t>>& keys,
+    int last_key_version) {
+  // Not used on iOS.
+  NOTREACHED();
+}
+
+void WebViewTrustedVaultClient::MarkLocalKeysAsStale(
+    const CoreAccountInfo& account_info,
+    base::OnceCallback<void(bool)> callback) {
+  // TODO(crbug.com/1266130): Implement this.
+}
+
+void WebViewTrustedVaultClient::GetIsRecoverabilityDegraded(
+    const CoreAccountInfo& account_info,
+    base::OnceCallback<void(bool)> callback) {
+  // TODO(crbug.com/1266130): Implement this.
+}
+
+void WebViewTrustedVaultClient::AddTrustedRecoveryMethod(
+    const std::string& gaia_id,
+    const std::vector<uint8_t>& public_key,
+    int method_type_hint,
+    base::OnceClosure callback) {
+  // Not used on iOS.
+  NOTREACHED();
+}
+
+}  // namespace ios_web_view