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 a9880543ca14aa580fd1be94fb6ee029ffc7ade4..f1368b55dafe72c57b709faff9ea9c1b02a39b33 100644
--- a/ui/android/view_android.h
+++ b/ui/android/view_android.h
@@ -14,10 +14,16 @@
 #include "ui/android/ui_android_export.h"
 #include "ui/gfx/geometry/rect_f.h"
 
+class SkBitmap;
+
 namespace cc {
 class Layer;
 }
 
+namespace gfx {
+class Point;
+}
+
 namespace ui {
 class DragEventAndroid;
 class EventForwarder;
@@ -143,6 +149,9 @@ class UI_ANDROID_EXPORT ViewAndroid {
 
   gfx::Size GetPhysicalBackingSize();
   void OnPhysicalBackingSizeChanged(const gfx::Size& size);
+  void OnCursorChanged(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);