pt 1 in reviving the android build (copied from pm 28a1, wish me luck)

mobile/android/base/java/org/mozilla/gecko/adjust/AdjustBrowserAppDelegate.java

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+package org.mozilla.gecko.adjust;
+
+import android.content.SharedPreferences;
+import android.os.Bundle;
+
+import org.mozilla.gecko.AdjustConstants;
+import org.mozilla.gecko.BrowserApp;
+import org.mozilla.gecko.GeckoSharedPrefs;
+import org.mozilla.gecko.delegates.BrowserAppDelegate;
+import org.mozilla.gecko.mozglue.SafeIntent;
+import org.mozilla.gecko.preferences.GeckoPreferences;
+import org.mozilla.gecko.util.IntentUtils;
+
+public class AdjustBrowserAppDelegate extends BrowserAppDelegate {
+    private final AdjustHelperInterface adjustHelper;
+    private final AttributionHelperListener attributionHelperListener;
+
+    public AdjustBrowserAppDelegate(AttributionHelperListener attributionHelperListener) {
+        this.adjustHelper = AdjustConstants.getAdjustHelper();
+        this.attributionHelperListener = attributionHelperListener;
+    }
+
+    @Override
+    public void onCreate(BrowserApp browserApp, Bundle savedInstanceState) {
+        adjustHelper.onCreate(browserApp,
+                AdjustConstants.MOZ_INSTALL_TRACKING_ADJUST_SDK_APP_TOKEN,
+                attributionHelperListener);
+
+        final boolean isInAutomation = IntentUtils.getIsInAutomationFromEnvironment(
+                new SafeIntent(browserApp.getIntent()));
+
+        final SharedPreferences prefs = GeckoSharedPrefs.forApp(browserApp);
+
+        // Adjust stores enabled state so this is only necessary because users may have set
+        // their data preferences before this feature was implemented and we need to respect
+        // those before upload can occur in Adjust.onResume.
+        adjustHelper.setEnabled(!isInAutomation
+                && prefs.getBoolean(GeckoPreferences.PREFS_HEALTHREPORT_UPLOAD_ENABLED, true));
+    }
+
+    @Override
+    public void onResume(BrowserApp browserApp) {
+        // Needed for Adjust to get accurate session measurements
+        adjustHelper.onResume();
+    }
+
+    @Override
+    public void onPause(BrowserApp browserApp) {
+        // Needed for Adjust to get accurate session measurements
+        adjustHelper.onPause();
+    }
+}

mobile/android/base/java/org/mozilla/gecko/adjust/AdjustHelper.java

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+/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+package org.mozilla.gecko.adjust;
+
+import android.content.Context;
+import android.content.Intent;
+import android.util.Log;
+
+import com.adjust.sdk.Adjust;
+import com.adjust.sdk.AdjustAttribution;
+import com.adjust.sdk.AdjustConfig;
+import com.adjust.sdk.AdjustReferrerReceiver;
+import com.adjust.sdk.LogLevel;
+import com.adjust.sdk.OnAttributionChangedListener;
+
+import org.mozilla.gecko.AppConstants;
+
+public class AdjustHelper implements AdjustHelperInterface, OnAttributionChangedListener {
+
+    private static final String LOGTAG = AdjustHelper.class.getSimpleName();
+    private AttributionHelperListener attributionListener;
+
+    public void onCreate(final Context context, final String maybeAppToken, final AttributionHelperListener listener) {
+        final String environment;
+        final LogLevel logLevel;
+        if (AppConstants.MOZILLA_OFFICIAL) {
+            environment = AdjustConfig.ENVIRONMENT_PRODUCTION;
+            logLevel = LogLevel.WARN;
+        } else {
+            environment = AdjustConfig.ENVIRONMENT_SANDBOX;
+            logLevel = LogLevel.VERBOSE;
+        }
+        if (maybeAppToken == null) {
+            // We've got install tracking turned on -- we better have a token!
+            throw new IllegalArgumentException("maybeAppToken must not be null");
+        }
+        attributionListener = listener;
+        AdjustConfig config = new AdjustConfig(context, maybeAppToken, environment);
+        config.setLogLevel(logLevel);
+        config.setOnAttributionChangedListener(this);
+        Adjust.onCreate(config);
+    }
+
+    public void onPause() {
+        Adjust.onPause();
+    }
+
+    public void onResume() {
+        Adjust.onResume();
+    }
+
+    public void setEnabled(final boolean isEnabled) {
+        Adjust.setEnabled(isEnabled);
+    }
+
+    public void onReceive(final Context context, final Intent intent) {
+        new AdjustReferrerReceiver().onReceive(context, intent);
+    }
+
+    @Override
+    public void onAttributionChanged(AdjustAttribution attribution) {
+        if (attributionListener == null) {
+            throw new IllegalStateException("Expected non-null attribution listener.");
+        }
+
+        if (attribution == null) {
+            Log.e(LOGTAG, "Adjust attribution is null; skipping campaign id retrieval.");
+            return;
+        }
+        attributionListener.onCampaignIdChanged(attribution.campaign);
+    }
+}

mobile/android/base/java/org/mozilla/gecko/adjust/AdjustHelperInterface.java

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+/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+package org.mozilla.gecko.adjust;
+
+import android.content.Context;
+import android.content.Intent;
+
+public interface AdjustHelperInterface {
+    /**
+     * Register the Application with the Adjust SDK.
+     * @param appToken the (secret!) Adjust SDK per-application token to register with; may be null.
+     */
+    void onCreate(final Context context, final String appToken, final AttributionHelperListener listener);
+    void onPause();
+    void onResume();
+
+    void setEnabled(final boolean isEnabled);
+    void onReceive(final Context context, final Intent intent);
+}

mobile/android/base/java/org/mozilla/gecko/adjust/AttributionHelperListener.java

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+/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+package org.mozilla.gecko.adjust;
+
+/**
+ * Because of how our build module dependencies are structured, we aren't able to use
+ * the {@link com.adjust.sdk.OnAttributionChangedListener} directly outside of {@link AdjustHelper}.
+ * If the Adjust SDK is enabled, this listener should be notified when {@link com.adjust.sdk.OnAttributionChangedListener}
+ * is fired (i.e. this listener would be daisy-chained to the Adjust one). The listener also
+ * inherits thread-safety from GeckoSharedPrefs which is used to store the campaign ID.
+ */
+public interface AttributionHelperListener {
+    void onCampaignIdChanged(String campaignId);
+}

mobile/android/base/java/org/mozilla/gecko/adjust/StubAdjustHelper.java

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+/* -*- Mode: Java; c-basic-offset: 4; tab-width: 20; indent-tabs-mode: nil; -*-
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+package org.mozilla.gecko.adjust;
+
+import android.content.Context;
+import android.content.Intent;
+
+public class StubAdjustHelper implements AdjustHelperInterface {
+    public void onCreate(final Context context, final String appToken, final AttributionHelperListener listener) {
+        // Do nothing.
+    }
+
+    public void onPause() {
+        // Do nothing.
+    }
+
+    public void onResume() {
+        // Do nothing.
+    }
+
+    public void setEnabled(final boolean isEnabled) {
+        // Do nothing.
+    }
+
+    public void onReceive(final Context context, final Intent intent) {
+        // Do nothing.
+    }
+}