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 15e51a0042ca48b6eb5c29d0bbbc6cafdb9541a3..65b493259f9957fcd85f678d927b41c12d73a242 100644
--- a/ui/android/view_android.cc
+++ b/ui/android/view_android.cc
@@ -11,11 +11,13 @@
 #include "base/containers/adapters.h"
 #include "cc/layers/layer.h"
 #include "jni/ViewAndroidDelegate_jni.h"
+#include "ui/android/cursor_type.h"

[Jinsuk Kim, 2017/05/17 04:49:50]

It's already included in the header. No need to include again.

[jaebaek, 2017/05/18 01:44:29]

Done.

 #include "ui/android/event_forwarder.h"
 #include "ui/android/view_client.h"
 #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 {
@@ -243,6 +245,25 @@ bool ViewAndroid::StartDragAndDrop(const JavaRef<jstring>& jtext,
                                                    jimage);
 }
 
+void ViewAndroid::OnCursorChanged(CursorType type,
+                                  const SkBitmap& custom_image,
+                                  const gfx::Point& hotspot) {
+  ScopedJavaLocalRef<jobject> delegate(GetViewAndroidDelegate());
+  if (delegate.is_null())
+    return;
+  JNIEnv* env = base::android::AttachCurrentThread();
+  if (type == CURSOR_TYPE_CUSTOM) {
+    ScopedJavaLocalRef<jobject> java_bitmap =
+        gfx::ConvertToJavaBitmap(&custom_image);
+    Java_ViewAndroidDelegate_onCursorChangedToCustom(
+        env, delegate, java_bitmap, static_cast<jint>(hotspot.x()),

[Jinsuk Kim, 2017/05/17 04:49:50]

I think you can do without static_cast.

[jaebaek, 2017/05/18 01:44:29]

Done.

+        static_cast<jint>(hotspot.y()));
+  } else {
+    Java_ViewAndroidDelegate_onCursorChanged(env, delegate,
+                                             static_cast<jint>(type));
+  }
+}
+
 void ViewAndroid::OnBackgroundColorChanged(unsigned int color) {
   ScopedJavaLocalRef<jobject> delegate(GetViewAndroidDelegate());
   if (delegate.is_null())