Upstream oodles of Chrome for Android code into Chromium.

chrome/android/java_staging/src/org/chromium/chrome/browser/widget/ControlContainer.java

+// Copyright 2015 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.chrome.browser.widget;
+
+import android.view.View;
+
+import org.chromium.chrome.browser.compositor.layouts.eventfilter.EdgeSwipeHandler;
+import org.chromium.ui.resources.dynamics.ViewResourceAdapter;
+
+/**
+ * Interface that defines the responsibilities of the layout container for the top controls.
+ * <p>
+ * Concrete implementations of this class must extend ViewGroup.
+ */
+public interface ControlContainer {
+    /**
+     * @return The {@link ViewResourceAdapter} that exposes this {@link View} as a CC resource.
+     */
+    ViewResourceAdapter getToolbarResourceAdapter();
+
+    /**
+     * @return The {@link ViewResourceAdapter} that exposes the progress widget as a CC resource
+     *         (if applicable).
+     */
+    ViewResourceAdapter getProgressResourceAdapter();
+
+    /**
+     * @param handler The swipe handler to be notified of swipe events on this container.
+     */
+    void setSwipeHandler(EdgeSwipeHandler handler);
+}