Support setting mouse cursor icon in Android N.

chrome/android/java/src/org/chromium/chrome/browser/infobar/InfoBarLayout.java

Index: chrome/android/java/src/org/chromium/chrome/browser/infobar/InfoBarLayout.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/infobar/InfoBarLayout.java b/chrome/android/java/src/org/chromium/chrome/browser/infobar/InfoBarLayout.java
index 312102d0c74ba6bdaa6dc9db44156bf6d2aa8107..35596e96f1bffa9ff87d7684e4985ce659d9517c 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/infobar/InfoBarLayout.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/infobar/InfoBarLayout.java
@@ -9,12 +9,14 @@ import android.content.res.Resources;
 import android.content.res.TypedArray;
 import android.graphics.Bitmap;
 import android.graphics.drawable.Drawable;
+import android.os.Build;
 import android.support.annotation.Nullable;
 import android.text.SpannableString;
 import android.text.SpannableStringBuilder;
 import android.text.Spanned;
 import android.text.TextUtils;
 import android.util.TypedValue;
+import android.view.PointerIcon;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.Button;
@@ -244,7 +246,15 @@ public final class InfoBarLayout extends ViewGroup implements View.OnClickListen
                 R.dimen.infobar_margin_between_stacked_buttons));
 
         mButtonRowLayout.addView(primaryButton);
-        if (secondaryView != null) mButtonRowLayout.addView(secondaryView);
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {

[Jinsuk Kim, 2017/07/17 04:45:18]

Version check is repeated more often than necessary. I think the checking in
|setPointerIcon| is enough.

[jaebaek, 2017/07/18 07:48:21]

This is for PointerIcon.TYPE_HAND, but I will
move PointerIcon.TYPE_HAND to setPointerIcon()
method and change the name of method as
setPointerIconAsHand()

+            setPointerIcon(primaryButton, PointerIcon.TYPE_HAND);
+        }
+        if (secondaryView != null) {
+            mButtonRowLayout.addView(secondaryView);
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
+                setPointerIcon(secondaryView, PointerIcon.TYPE_HAND);
+            }
+        }
     }
 
     /**
@@ -550,6 +560,17 @@ public final class InfoBarLayout extends ViewGroup implements View.OnClickListen
         closeButton.setContentDescription(context.getString(R.string.infobar_close));
         closeButton.setScaleType(ImageView.ScaleType.CENTER_INSIDE);
 
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
+            setPointerIcon(closeButton, PointerIcon.TYPE_HAND);
+        }
+
         return closeButton;
     }
+
+    private static void setPointerIcon(View view, int type) {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
+            PointerIcon icon = PointerIcon.getSystemIcon(view.getContext(), type);
+            view.setPointerIcon(icon);
+        }
+    }
 }