Refactor Android printing code to make it more testable.

printing/android/java/src/org/chromium/printing/PrintManagerDelegateImpl.java

Index: printing/android/java/src/org/chromium/printing/PrintManagerDelegateImpl.java
diff --git a/printing/android/java/src/org/chromium/printing/PrintManagerDelegateImpl.java b/printing/android/java/src/org/chromium/printing/PrintManagerDelegateImpl.java
new file mode 100644
index 0000000000000000000000000000000000000000..99422a4ab5246bb33bc28f074e0e03386e9e10d1
--- /dev/null
+++ b/printing/android/java/src/org/chromium/printing/PrintManagerDelegateImpl.java
@@ -0,0 +1,27 @@
+// Copyright 2013 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.printing;
+
+import android.print.PrintAttributes;
+import android.print.PrintDocumentAdapter;
+import android.print.PrintManager;
+
+/**
+ * An implementation of {@link PrintManagerDelegate} using the Android framework print manager.
+ */
+public class PrintManagerDelegateImpl implements PrintManagerDelegate {
+    private final PrintManager mPrintManager;
+
+    public PrintManagerDelegateImpl(PrintManager printManager) {
+        mPrintManager = printManager;
+    }
+
+    @Override
+    public void print(String printJobName, PrintDocumentAdapter documentAdapter,
+            PrintAttributes attributes) {
+        mPrintManager.print(printJobName, documentAdapter, attributes);
+    }
+
+}