AI 144089: Make "Term" build against the public Android API.

This was done by making a private copy of android.term.Exec.
  BUG=1750582

Automated import of CL 144089

apps/Term/src/com/android/term/Exec.java

@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2007 The Android Open Source Project
+ *
+ * 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.android.term;
+
+import java.io.FileDescriptor;
+
+/**
+ * @hide
+ * Tools for executing commands.  Not for public consumption.
+ */
+
+public class Exec
+{
+    static {
+        System.loadLibrary("term");
+    }
+
+    /**
+     * @param cmd The command to execute
+     * @param arg0 The first argument to the command, may be null
+     * @param arg1 the second argument to the command, may be null
+     * @return the file descriptor of the started process.
+     *
+     */
+    public static FileDescriptor createSubprocess(
+        String cmd, String arg0, String arg1) {
+        return createSubprocess(cmd, arg0, arg1, null);
+    }
+
+    /**
+     * @param cmd The command to execute
+     * @param arg0 The first argument to the command, may be null
+     * @param arg1 the second argument to the command, may be null
+     * @param processId A one-element array to which the process ID of the
+     * started process will be written.
+     * @return the file descriptor of the started process.
+     *
+     */
+     public static native FileDescriptor createSubprocess(
+        String cmd, String arg0, String arg1, int[] processId);
+
+     public static native void setPtyWindowSize(FileDescriptor fd,
+       int row, int col, int xpixel, int ypixel);
+    /**
+     * Causes the calling thread to wait for the process associated with the
+     * receiver to finish executing.
+     *
+     * @return The exit value of the Process being waited on
+     *
+     */
+    public static native int waitFor(int processId);
+}
+