Support setting mouse cursor icon in Android N.

ui/android/view_android.h

Index: ui/android/view_android.h
diff --git a/ui/android/view_android.h b/ui/android/view_android.h
index 1b219e8f840f813d8ad9d585e1b6caaccae2c4c5..cf094cd8907164700fbf2c83d32e0500803f7739 100644
--- a/ui/android/view_android.h
+++ b/ui/android/view_android.h
@@ -10,6 +10,7 @@
 #include "base/android/jni_weak_ref.h"
 #include "base/bind.h"
 #include "base/memory/ref_counted.h"
+#include "third_party/skia/include/core/SkBitmap.h"
 #include "ui/android/ui_android_export.h"
 #include "ui/gfx/geometry/rect_f.h"
 
@@ -135,6 +136,10 @@ class UI_ANDROID_EXPORT ViewAndroid {
 
   gfx::Size GetPhysicalBackingSize();
   void OnPhysicalBackingSizeChanged(const gfx::Size& size);
+  void OnCursorChanged(bool to_custom_cursor,
+                       int type,
+                       const SkBitmap& custom_image,
+                       const gfx::Point& hotspot);
   void OnBackgroundColorChanged(unsigned int color);
   void OnTopControlsChanged(float top_controls_offset,
                             float top_content_offset);