Support setting mouse cursor icon in Android N.

ui/android/view_android.cc

Index: ui/android/view_android.cc
diff --git a/ui/android/view_android.cc b/ui/android/view_android.cc
index 8503cf837fff15a87f1cad682ea9519ffae8e002..7b5e24c2d3e93efba7af13074f410be8bcc3544e 100644
--- a/ui/android/view_android.cc
+++ b/ui/android/view_android.cc
@@ -16,6 +16,7 @@
 #include "ui/android/window_android.h"
 #include "ui/base/layout.h"
 #include "ui/events/android/motion_event_android.h"
+#include "ui/gfx/android/java_bitmap.h"
 #include "url/gurl.h"
 
 namespace ui {
@@ -248,6 +249,24 @@ bool ViewAndroid::StartDragAndDrop(const JavaRef<jstring>& jtext,
                                                    jimage);
 }
 
+void ViewAndroid::OnCursorChanged(bool to_custom_cursor,
+                                  int type,
+                                  const SkBitmap& custom_image,
+                                  const gfx::Point& hotspot) {
+  ScopedJavaLocalRef<jobject> delegate(GetViewAndroidDelegate());
+  if (delegate.is_null())
+    return;
+  JNIEnv* env = base::android::AttachCurrentThread();
+  if (to_custom_cursor) {
+    ScopedJavaLocalRef<jobject> java_bitmap =
+        gfx::ConvertToJavaBitmap(&custom_image);
+    Java_ViewAndroidDelegate_onCursorChangedToCustom(env, delegate, java_bitmap,
+                                                     hotspot.x(), hotspot.y());
+  } else {
+    Java_ViewAndroidDelegate_onCursorChanged(env, delegate, type);
+  }
+}
+
 void ViewAndroid::OnBackgroundColorChanged(unsigned int color) {
   ScopedJavaLocalRef<jobject> delegate(GetViewAndroidDelegate());
   if (delegate.is_null())