Support setting mouse cursor icon in Android N.

chrome/android/java/src/org/chromium/chrome/browser/compositor/bottombar/OverlayPanelContent.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.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;
 
 import org.chromium.base.VisibleForTesting;
 import org.chromium.base.annotations.CalledByNative;
 import org.chromium.chrome.browser.ChromeActivity;
 import org.chromium.chrome.browser.ChromeVersionInfo;
 import org.chromium.chrome.browser.WebContentsFactory;
 import org.chromium.chrome.browser.contextualsearch.ContextualSearchManager;
@@ skipping 269 matching lines @@
                     public void setViewPosition(View anchorView, float x, float y, float width,
                             float height, float scale, int leftMargin, int topMargin) { }
 
                     @Override
                     public void removeView(View anchorView) { }
 
                     @Override
                     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());
 
         // Transfers the ownership of the WebContents to the native OverlayPanelContent.
         nativeSetWebContents(mNativeOverlayPanelContentPtr, panelWebContents, mWebContentsDelegate);
 
         mWebContentsObserver =
                 new WebContentsObserver(panelWebContents) {
                     @Override
                     public void didStartLoading(String url) {
@@ skipping 215 matching lines @@
     private native void nativeRemoveLastHistoryEntry(
             long nativeOverlayPanelContent, String historyUrl, long urlTimeMs);
     private native void nativeOnPhysicalBackingSizeChanged(
             long nativeOverlayPanelContent, WebContents webContents, int width, int height);
     private native void nativeSetWebContents(long nativeOverlayPanelContent,
             WebContents webContents, WebContentsDelegateAndroid delegate);
     private native void nativeDestroyWebContents(long nativeOverlayPanelContent);
     private native void nativeSetInterceptNavigationDelegate(long nativeOverlayPanelContent,
             InterceptNavigationDelegate delegate, WebContents webContents);
 }