Refactor ContentViewClient (3/6)

chrome/android/java/src/org/chromium/chrome/browser/tab/TabViewAndroidDelegate.java

Index: chrome/android/java/src/org/chromium/chrome/browser/tab/TabViewAndroidDelegate.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/tab/TabViewAndroidDelegate.java b/chrome/android/java/src/org/chromium/chrome/browser/tab/TabViewAndroidDelegate.java
new file mode 100644
index 0000000000000000000000000000000000000000..991edb00492315c2e55ed0486e751bb691ff519a
--- /dev/null
+++ b/chrome/android/java/src/org/chromium/chrome/browser/tab/TabViewAndroidDelegate.java
@@ -0,0 +1,52 @@
+// Copyright 2016 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.tab;
+
+import android.view.ViewGroup;
+
+import org.chromium.chrome.browser.ChromeActivity;
+import org.chromium.ui.base.ViewAndroidDelegate;
+
+/**
+ * Implementation of {@link ViewAndroidDelgate} for Chome.
+ */
+class TabViewAndroidDelegate extends ViewAndroidDelegate {
+    private final Tab mTab;
+    private final ViewGroup mContainerView;
+
+    TabViewAndroidDelegate(Tab tab, ViewGroup containerView) {
+        mTab = tab;
+        mContainerView = containerView;
+    }
+
+    @Override
+    public int getSystemWindowInsetBottom() {
+        ChromeActivity activity = mTab.getActivity();
+        if (activity != null && activity.getInsetObserverView() != null) {
+            return activity.getInsetObserverView().getSystemWindowInsetsBottom();
+        }
+        return 0;
+    }
+
+    @Override
+    public void onBackgroundColorChanged(int color) {
+        mTab.onBackgroundColorChanged(color);
+    }
+
+    @Override
+    public void onTopControlsChanged(float topControlsOffsetY, float topContentOffsetY) {
+        mTab.onOffsetsChanged(topControlsOffsetY, Float.NaN, topContentOffsetY);
+    }
+
+    @Override
+    public void onBottomControlsChanged(float bottomControlsOffsetY, float bottomContentOffsetY) {
+        mTab.onOffsetsChanged(Float.NaN, bottomControlsOffsetY, Float.NaN);
+    }
+
+    @Override
+    public ViewGroup getContainerView() {
+        return mContainerView;
+    }
+}