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

mobile/android/thirdparty/com/squareup/picasso/Target.java

@@ -0,0 +1,45 @@
+/*
+ * Copyright (C) 2013 Square, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.squareup.picasso;
+
+import android.graphics.Bitmap;
+import android.graphics.drawable.Drawable;
+
+import static com.squareup.picasso.Picasso.LoadedFrom;
+
+/**
+ * Represents an arbitrary listener for image loading.
+ * <p/>
+ * Objects implementing this class <strong>must</strong> have a working implementation of
+ * {@link #equals(Object)} and {@link #hashCode()} for proper storage internally. Instances of this
+ * interface will also be compared to determine if view recycling is occurring. It is recommended
+ * that you add this interface directly on to a custom view type when using in an adapter to ensure
+ * correct recycling behavior.
+ */
+public interface Target {
+  /**
+   * Callback when an image has been successfully loaded.
+   * <p/>
+   * <strong>Note:</strong> You must not recycle the bitmap.
+   */
+  void onBitmapLoaded(Bitmap bitmap, LoadedFrom from);
+
+  /** Callback indicating the image could not be successfully loaded. */
+  void onBitmapFailed(Drawable errorDrawable);
+
+  /** Callback invoked right before your request is submitted. */
+  void onPrepareLoad(Drawable placeHolderDrawable);
+}