Build NetError.java to use in java side tests by preprocessing net_errors.cc

net/android/javatests/src/org/chromium/net/NetErrorsTest.java

Index: net/android/javatests/src/org/chromium/net/NetErrorsTest.java
diff --git a/net/android/javatests/src/org/chromium/net/NetErrorsTest.java b/net/android/javatests/src/org/chromium/net/NetErrorsTest.java
new file mode 100644
index 0000000000000000000000000000000000000000..266655c93270a498befebade5449544d71f62829
--- /dev/null
+++ b/net/android/javatests/src/org/chromium/net/NetErrorsTest.java
@@ -0,0 +1,34 @@
+// Copyright (c) 2012 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.
+
+/**
+ * Tests to verify that NetError.java is created succesfully.
+ */
+
+package org.chromium.net;
+
+import android.test.InstrumentationTestCase;
+import android.test.suitebuilder.annotation.SmallTest;
+
+import org.chromium.net.NetError;
+
+import org.chromium.base.test.Feature;
+
+public class NetErrorsTest extends InstrumentationTestCase {
+    // These are manually copied and should be kept in sync with net_error_list.h.
+    private static int IO_PENDING_ERROR = -1;
+    private static int FAILED_ERROR = -2;
+
+    /**
+     * Test whether we can include NetError.java and call to static integers defined in the file.
+     *
+     * @throws Exception
+     */
+    @SmallTest
+    @Feature({"Android-AppBase"})
+    public void testExampleErrorDefined() throws Exception {
+        assertEquals(IO_PENDING_ERROR, NetError.ERR_IO_PENDING);
+        assertEquals(FAILED_ERROR, NetError.ERR_FAILED);
+    }
+}