Upstream oodles of Chrome for Android code into Chromium.

chrome/android/java_staging/src/org/chromium/chrome/browser/compositor/layouts/LayoutManagerHost.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.compositor.layouts;
+
+import android.content.Context;
+import android.view.View;
+
+import org.chromium.chrome.browser.compositor.TitleCache;
+import org.chromium.chrome.browser.fullscreen.ChromeFullscreenManager;
+import org.chromium.content.browser.ContentViewCore;
+
+/**
+ * This is the minimal interface of the host view from the layout side.
+ * Any of these functions may be called on the GL thread.
+ */
+public interface LayoutManagerHost {
+    /**
+     * If set to true, the time it takes for ContentView to become ready will be
+     * logged to the screen.
+     */
+    static final boolean LOG_CHROME_VIEW_SHOW_TIME = false;
+
+    /**
+     * Requests a refresh of the visuals.
+     */
+    void requestRender();
+
+    /**
+     * @return The Android context of the host view.
+     */
+    Context getContext();
+
+    /**
+     * @see View#getWidth()
+     * @return The width of the host view.
+     */
+    int getWidth();
+
+    /**
+     * @see View#getHeight()
+     * @return The height of the host view.
+     */
+    int getHeight();
+
+    /**
+     * @return The associated {@link LayoutRenderHost} to be used from the GL Thread.
+     */
+    LayoutRenderHost getLayoutRenderHost();
+
+    /**
+     * Sets the visibility of the content overlays.
+     * @param show True if the content overlays should be shown.
+     */
+    void setContentOverlayVisibility(boolean show);
+
+    /**
+     * @return The {@link TitleCache} to use to store title bitmaps.
+     */
+    TitleCache getTitleCache();
+
+    /**
+     * @return The manager in charge of handling fullscreen changes.
+     */
+    ChromeFullscreenManager getFullscreenManager();
+
+    /**
+     * Called when a new {@link ContentViewCore} has been added to the list of current visible
+     * {@link ContentViewCore}s.  While this {@link ContentViewCore} might not be drawing its
+     * contents at this time, it needs to be sized appropriately.
+     * @param content The {@link ContentViewCore} that was added to the current list of visible
+     *                {@link ContentViewCore}s.
+     */
+    void onContentViewCoreAdded(ContentViewCore content);
+
+    /**
+     * Called when the currently visible content has been changed.
+     */
+    void onContentChanged();
+}