Multiprocess test client: Android child process launcher rework.

base/test/android/java/src/org/chromium/base/FileDescriptorInfo.java

Index: base/test/android/java/src/org/chromium/base/FileDescriptorInfo.java
diff --git a/base/test/android/java/src/org/chromium/base/FileDescriptorInfo.java b/base/test/android/java/src/org/chromium/base/FileDescriptorInfo.java
new file mode 100644
index 0000000000000000000000000000000000000000..c1c3d114db6c117c2cd4f81128a8b48f1026e203
--- /dev/null
+++ b/base/test/android/java/src/org/chromium/base/FileDescriptorInfo.java
@@ -0,0 +1,58 @@
+// Copyright 2016 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.base;
+
+import android.annotation.SuppressLint;
+import android.os.Parcel;
+import android.os.ParcelFileDescriptor;
+import android.os.Parcelable;
+
+/**
+ * Parcelable class that contains file descriptor and a key that identifies it.
+ * TODO(jcivelli): should be merged with
+ * org.chromium.content.common.FileDescriptorInfo
+ */
+@SuppressLint("ParcelClassLoader")
+public final class FileDescriptorInfo implements Parcelable {
+    /** An consumer chosen ID that uniquely identifies a file descriptor. */
+    public final int key;
+
+    /** A file descriptor to access the file. */
+    public final ParcelFileDescriptor fd;
+
+    public FileDescriptorInfo(int key, ParcelFileDescriptor fd) {
+        this.key = key;
+        this.fd = fd;
+    }
+
+    FileDescriptorInfo(Parcel in) {
+        key = in.readInt();
+        fd = in.readParcelable(null);
+    }
+
+    @Override
+    public int describeContents() {
+        return CONTENTS_FILE_DESCRIPTOR;
+    }
+
+    @Override
+    public void writeToParcel(Parcel dest, int flags) {
+        dest.writeInt(key);
+        dest.writeParcelable(fd, CONTENTS_FILE_DESCRIPTOR);
+    }
+
+    public static final Parcelable.Creator<FileDescriptorInfo> CREATOR =
+            new Parcelable.Creator<FileDescriptorInfo>() {
+                @Override
+                public FileDescriptorInfo createFromParcel(Parcel in) {
+                    return new FileDescriptorInfo(in);
+                }
+
+                @Override
+                public FileDescriptorInfo[] newArray(int size) {
+                    return new FileDescriptorInfo[size];
+                }
+            };
+}