Introduce ViewRoot to forward input/view events to native

ui/android/event_handler.h

Index: ui/android/event_handler.h
diff --git a/ui/android/event_handler.h b/ui/android/event_handler.h
new file mode 100644
index 0000000000000000000000000000000000000000..9df74a4a8ce4ada6e8f1b8ac22a4d585b26b0be0
--- /dev/null
+++ b/ui/android/event_handler.h
@@ -0,0 +1,22 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef UI_ANDROID_EVENT_HANDLER_H_
+#define UI_ANDROID_EVENT_HANDLER_H_
+
+#include <jni.h>
+
+#include "base/android/jni_android.h"
+
+namespace ui {
+
+void OnDestroyNativeView(

[boliu, 2016/12/08 05:01:06]

ok... this really implies this .h/cc files should just be merged into
view_android.h/cc

breaks convention, but oh well

[Jinsuk Kim, 2016/12/13 23:20:38]

Done.

+    JNIEnv* env,
+    const base::android::ScopedJavaLocalRef<jobject>& event_handler);
+
+bool RegisterEventHandler(JNIEnv* env);
+
+}  // namespace ui
+
+#endif  // UI_ANDROID_EVENT_HANDLER_H_