Support setting mouse cursor icon in Android N.

content/browser/renderer_host/render_widget_host_view_android.cc

Index: content/browser/renderer_host/render_widget_host_view_android.cc
diff --git a/content/browser/renderer_host/render_widget_host_view_android.cc b/content/browser/renderer_host/render_widget_host_view_android.cc
index 9c99a3482ff900fbe25b314fb1124e931996aa4a..c03281addb167954f0ed996bc89176f70a97b345 100644
--- a/content/browser/renderer_host/render_widget_host_view_android.cc
+++ b/content/browser/renderer_host/render_widget_host_view_android.cc
@@ -746,7 +746,10 @@ float RenderWidgetHostViewAndroid::GetBottomControlsHeight() const {
 }
 
 void RenderWidgetHostViewAndroid::UpdateCursor(const WebCursor& cursor) {
-  // There are no cursors on Android.
+  CursorInfo cursor_info;
+  cursor.GetCursorInfo(&cursor_info);
+  view_.OnCursorChanged(cursor_info.type, cursor_info.custom_image,
+                        cursor_info.hotspot);
 }
 
 void RenderWidgetHostViewAndroid::SetIsLoading(bool is_loading) {