Upstream oodles of Chrome for Android code into Chromium.

chrome/android/java_staging/src/org/chromium/chrome/browser/widget/ViewResourceFrameLayout.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.content.Context;
+import android.graphics.Rect;
+import android.util.AttributeSet;
+import android.view.View;
+import android.view.ViewParent;
+import android.widget.FrameLayout;
+
+import org.chromium.ui.resources.dynamics.ViewResourceAdapter;
+
+/**
+ * Extension to FrameLayout that handles tracking the necessary invalidates to generate
+ * a corresponding {@link org.chromium.ui.resources.Resource} for use in the browser compositor.
+ */
+public class ViewResourceFrameLayout extends FrameLayout {
+    private ViewResourceAdapter mResourceAdapter;
+
+    /**
+     * Constructs a ViewResourceFrameLayout.
+     * <p>
+     * This constructor is used when inflating from XML.
+     *
+     * @param context The context used to build this view.
+     * @param attrs The attributes used to determine how to construct this view.
+     */
+    public ViewResourceFrameLayout(Context context, AttributeSet attrs) {
+        super(context, attrs);
+    }
+
+    @Override
+    protected void onFinishInflate() {
+        super.onFinishInflate();
+
+        mResourceAdapter = createResourceAdapter();
+    }
+
+    /**
+     * @return A {@link ViewResourceAdapter} instance.  This can be overridden for custom behavior.
+     */
+    protected ViewResourceAdapter createResourceAdapter() {
+        return new ViewResourceAdapter(this);
+    }
+
+    /**
+     * @return The {@link ViewResourceAdapter} that exposes this {@link View} as a CC resource.
+     */
+    public ViewResourceAdapter getResourceAdapter() {
+        return mResourceAdapter;
+    }
+
+    /**
+     * @return Whether the control container is ready for capturing snapshots.
+     */
+    protected boolean isReadyForCapture() {
+        return true;
+    }
+
+    @Override
+    public ViewParent invalidateChildInParent(int[] location, Rect dirty) {
+        ViewParent retVal = super.invalidateChildInParent(location, dirty);
+        if (isReadyForCapture()) mResourceAdapter.invalidate(dirty);
+        return retVal;
+    }
+}