Support setting mouse cursor icon in Android N.

chrome/android/java/src/org/chromium/chrome/browser/compositor/bottombar/OverlayPanelContent.java

Index: chrome/android/java/src/org/chromium/chrome/browser/compositor/bottombar/OverlayPanelContent.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/compositor/bottombar/OverlayPanelContent.java b/chrome/android/java/src/org/chromium/chrome/browser/compositor/bottombar/OverlayPanelContent.java
index 3bab95b724850f5497fa500d29c85ffdde6aec32..fa3ea9a837cee50364dd55e0c2ceec737419ec8a 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/compositor/bottombar/OverlayPanelContent.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/compositor/bottombar/OverlayPanelContent.java
@@ -4,7 +4,9 @@
 
 package org.chromium.chrome.browser.compositor.bottombar;
 
+import android.os.Build;
 import android.text.TextUtils;
+import android.view.PointerIcon;
 import android.view.View;
 import android.view.View.MeasureSpec;
 import android.view.ViewGroup;
@@ -294,6 +296,13 @@ public class OverlayPanelContent {
                     public ViewGroup getContainerView() {
                         return mContainerView;
                     }
+
+                    @Override
+                    public void updatePointerIcon(PointerIcon icon) {
+                        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
+                            getContainerView().setPointerIcon(icon);
+                        }
+                    }
                 }.init(cv);
         mContentViewCore.initialize(delegate, cv, panelWebContents, mActivity.getWindowAndroid());