Privacy Sandbox Settings: created a bridge to access prefs

Bug: 1152351
Change-Id: I8afa16d818cfe1da71ec0479d9bc9d314346fd0d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2637833Reviewed-by: Theodore Olsauskas-Warren <sauski@google.com>
Reviewed-by: Theresa  <twellington@chromium.org>
Commit-Queue: Andrey Zaytsev <andzaytsev@google.com>
Cr-Commit-Position: refs/heads/master@{#845615}

chrome/browser/BUILD.gn

@@ -3160,6 +3160,7 @@ static_library("browser") {
       "previews/android/previews_android_bridge.cc",
       "previews/android/previews_android_bridge.h",
       "privacy/secure_dns_bridge.cc",
+      "privacy_sandbox/android/privacy_sandbox_bridge.cc",
       "profiles/android/profile_downloader_android.cc",
       "profiles/android/profile_manager_utils.cc",
       "profiles/incognito_utils_android.cc",
@@ -3257,6 +3258,7 @@ static_library("browser") {
       "//chrome/browser/payments/android:jni_headers",
       "//chrome/browser/policy/android:jni_headers",
       "//chrome/browser/privacy:jni_headers",
+      "//chrome/browser/privacy_sandbox/android:jni_headers",
       "//chrome/browser/reading_list/android",
       "//chrome/browser/safety_check/android",
       "//chrome/browser/share",

chrome/browser/privacy_sandbox/android/BUILD.gn

@@ -4,6 +4,10 @@
 
 import("//build/config/android/rules.gni")
 
+generate_jni("jni_headers") {
+  sources = [ "java/src/org/chromium/chrome/browser/privacy_sandbox/PrivacySandboxBridge.java" ]
+}
+
 android_library("java") {
   visibility = [
     ":*",
@@ -11,18 +15,21 @@ android_library("java") {
     "//chrome/android:chrome_java",
   ]
   sources = [
+    "java/src/org/chromium/chrome/browser/privacy_sandbox/PrivacySandboxBridge.java",
     "java/src/org/chromium/chrome/browser/privacy_sandbox/PrivacySandboxSettingsFragment.java",
     "java/src/org/chromium/chrome/browser/privacy_sandbox/PrivacySandboxSnackbarController.java",
   ]
   deps = [
     ":java_resources",
     "//base:base_java",
+    "//base:jni_java",
     "//chrome/browser/ui/messages/android:java",
     "//components/browser_ui/settings/android:java",
     "//third_party/android_deps:androidx_fragment_fragment_java",
     "//third_party/android_deps:androidx_preference_preference_java",
     "//ui/android:ui_full_java",
   ]
+  annotation_processor_deps = [ "//base/android/jni_generator:jni_processor" ]
   resources_package = "org.chromium.chrome.browser.privacy_sandbox"
 }
 

chrome/browser/privacy_sandbox/android/java/src/org/chromium/chrome/browser/privacy_sandbox/PrivacySandboxBridge.java

+// 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.
+
+package org.chromium.chrome.browser.privacy_sandbox;
+
+import org.chromium.base.annotations.NativeMethods;
+
+/** Bridge, providing access to the native-side Privacy Sandbox configuration. */
+public class PrivacySandboxBridge {
+    boolean isPrivacySandboxEnabled() {
+        return PrivacySandboxBridgeJni.get().isPrivacySandboxEnabled();
+    }
+
+    boolean isPrivacySandboxManaged() {
+        return PrivacySandboxBridgeJni.get().isPrivacySandboxManaged();
+    }
+
+    void setPrivacySandboxEnabled(boolean enabled) {
+        PrivacySandboxBridgeJni.get().setPrivacySandboxEnabled(enabled);
+    }
+
+    @NativeMethods
+    interface Natives {
+        boolean isPrivacySandboxEnabled();
+        boolean isPrivacySandboxManaged();
+        void setPrivacySandboxEnabled(boolean enabled);
+    }
+}

chrome/browser/privacy_sandbox/android/privacy_sandbox_bridge.cc

+// 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 "chrome/browser/privacy_sandbox/android/jni_headers/PrivacySandboxBridge_jni.h"
+#include "chrome/browser/privacy_sandbox/privacy_sandbox_settings.h"
+#include "chrome/browser/privacy_sandbox/privacy_sandbox_settings_factory.h"
+#include "chrome/browser/profiles/profile_manager.h"
+
+static jboolean JNI_PrivacySandboxBridge_IsPrivacySandboxEnabled(JNIEnv* env) {
+  return PrivacySandboxSettingsFactory::GetForProfile(
+             ProfileManager::GetActiveUserProfile())
+      ->IsPrivacySandboxEnabled();
+}
+
+static jboolean JNI_PrivacySandboxBridge_IsPrivacySandboxManaged(JNIEnv* env) {
+  return PrivacySandboxSettingsFactory::GetForProfile(
+             ProfileManager::GetActiveUserProfile())
+      ->IsPrivacySandboxManaged();
+}
+
+static void JNI_PrivacySandboxBridge_SetPrivacySandboxEnabled(
+    JNIEnv* env,
+    jboolean enabled) {
+  PrivacySandboxSettingsFactory::GetForProfile(
+      ProfileManager::GetActiveUserProfile())
+      ->SetPrivacySandboxEnabled(enabled);
+}

chrome/browser/privacy_sandbox/privacy_sandbox_settings.cc

@@ -131,6 +131,22 @@ bool PrivacySandboxSettings::IsPrivacySandboxAllowed() {
   return pref_service_->GetBoolean(prefs::kPrivacySandboxApisEnabled);
 }
 
+bool PrivacySandboxSettings::IsPrivacySandboxEnabled() {
+  return pref_service_->GetBoolean(prefs::kPrivacySandboxApisEnabled);
+}
+
+bool PrivacySandboxSettings::IsPrivacySandboxManaged() {
+  return pref_service_->IsManagedPreference(prefs::kPrivacySandboxApisEnabled);
+}
+
+void PrivacySandboxSettings::SetPrivacySandboxEnabled(bool enabled) {
+  if (!base::FeatureList::IsEnabled(features::kPrivacySandboxSettings)) {
+    return;
+  }
+  pref_service_->SetBoolean(prefs::kPrivacySandboxManuallyControlled, true);
+  pref_service_->SetBoolean(prefs::kPrivacySandboxApisEnabled, enabled);
+}
+
 void PrivacySandboxSettings::OnCookiesCleared() {
   pref_service_->SetTime(prefs::kPrivacySandboxFlocDataAccessibleSince,
                          base::Time::Now());

chrome/browser/privacy_sandbox/privacy_sandbox_settings.h

@@ -77,6 +77,16 @@ class PrivacySandboxSettings : public KeyedService {
   // is enabled, this will check prefs::kPrivacySandboxApisEnabled instead.
   bool IsPrivacySandboxAllowed();
 
+  // Used by the UI to check if the API is enabled. Unlike the method above,
+  // this method only checks the pref directly.
+  bool IsPrivacySandboxEnabled();
+
+  // Returns whether the state of the API is managed.
+  bool IsPrivacySandboxManaged();
+
+  // Gets invoked by the UI when the user manually changed the state of the API.
+  void SetPrivacySandboxEnabled(bool enabled);
+
   // Called when there's a broad cookies clearing action. For example, this
   // should be called on "Clear browsing data", but shouldn't be called on the
   // Clear-Site-Data header, as it's restricted to a specific site.