Implement the skeleton of an android content shell.

content/shell/android/java/org/chromium/content_shell/ShellManager.java

+// 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.
+
+package org.chromium.content_shell;
+
+import android.content.Context;
+import android.util.AttributeSet;
+import android.view.LayoutInflater;
+import android.widget.FrameLayout;
+
+import org.chromium.base.CalledByNative;
+
+/**
+ * Container and generator of ShellViews.
+ */
+public class ShellManager extends FrameLayout {
+
+    private ShellView mActiveShellView;
+
+    /**
+     * Constructor for inflating via XML.
+     */
+    public ShellManager(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        nativeInit(this);
+    }
+
+    /**
+     * @return The currently visible shell view or null if one is not showing.
+     */
+    protected ShellView getActiveShellView() {
+        return mActiveShellView;
+    }
+
+    @SuppressWarnings("unused")
+    @CalledByNative
+    private int createShell() {
+        LayoutInflater inflater =
+                (LayoutInflater) getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
+        ShellView shellView = (ShellView) inflater.inflate(R.layout.shell_view, null);
+
+        removeAllViews();
+        addView(shellView, new FrameLayout.LayoutParams(
+                FrameLayout.LayoutParams.MATCH_PARENT, FrameLayout.LayoutParams.MATCH_PARENT));
+        mActiveShellView = shellView;
+
+        return shellView.getNativeShellView();
+    }
+
+    private static native void nativeInit(Object shellManagerInstance);
+}