Revert "ViewRoot class for event forwarding on Android"

ui/android/view_client.h

Index: ui/android/view_client.h
diff --git a/ui/android/view_client.h b/ui/android/view_client.h
deleted file mode 100644
index fb7f79c6633070e3e805a256f2a6d319fda0b472..0000000000000000000000000000000000000000
--- a/ui/android/view_client.h
+++ /dev/null
@@ -1,103 +0,0 @@
-// Copyright 2017 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_VIEW_CLIENT_H_
-#define UI_ANDROID_VIEW_CLIENT_H_
-
-#include <jni.h>
-
-#include "ui/android/ui_android_export.h"
-
-namespace ui {
-
-// Container of motion event data. Used when traversing views along their
-// hierarchy. Actual motion event object will be constructed right before
-// it is used in the |ViewClient| implementation to avoid creating multiple
-// |MotionEventAndroid| instances.
-struct MotionEventData {
-  MotionEventData(float dip_scale,
-                  jobject jevent,
-                  long time,
-                  int action,
-                  int pointer_count,
-                  int history_size,
-                  int action_index,
-                  float pos_x0,
-                  float pos_y0,
-                  float pos_x1,
-                  float pos_y1,
-                  int pointer_id_0,
-                  int pointer_id_1,
-                  float touch_major_0,
-                  float touch_major_1,
-                  float touch_minor_0,
-                  float touch_minor_1,
-                  float orientation_0,
-                  float orientation_1,
-                  float tilt_0,
-                  float tilt_1,
-                  float raw_pos_x,
-                  float raw_pos_y,
-                  int tool_type_0,
-                  int tool_type_1,
-                  int button_state,
-                  int meta_state,
-                  bool is_touch_handle_event);
-
-  MotionEventData(const MotionEventData& other);
-
-  // Returns a new |MotionEventData| object whose position is offset
-  // by a given delta.
-  MotionEventData Offset(float delta_x, float delta_y) const;
-
-  float GetX() const { return pos_x0_ / dip_scale_; }
-  float GetY() const { return pos_y0_ / dip_scale_; }
-
-  const float dip_scale_;
-  const jobject jevent_;
-  const long time_; // ms
-  const int action_;
-  const int pointer_count_;
-  const int history_size_;
-  const int action_index_;
-
-  const float pos_x0_;  // in pixel unit
-  const float pos_y0_;
-  const float pos_x1_;
-  const float pos_y1_;
-
-  const int pointer_id_0_;
-  const int pointer_id_1_;
-  const float touch_major_0_;
-  const float touch_major_1_;
-  const float touch_minor_0_;
-  const float touch_minor_1_;
-  const float orientation_0_;
-  const float orientation_1_;
-  const float tilt_0_;
-  const float tilt_1_;
-  const float raw_pos_x_;
-  const float raw_pos_y_;
-  const int tool_type_0_;
-  const int tool_type_1_;
-  const int button_state_;
-  const int meta_state_;
-  const bool is_touch_handle_event_;
-};
-
-// Client interface used to forward events from Java to native views.
-// Calls are dispatched to its children along the hierarchy of ViewAndroid.
-// Use bool return type to stop propagating the call i.e. overriden method
-// should return true to indicate that the event was handled and stop
-// the processing.
-// Note: Not in use yet. Will be hooked up together with ViewRoot.
-//       See https://crbug.com/671401.
-class UI_ANDROID_EXPORT ViewClient {
- public:
-  virtual bool OnTouchEvent(const MotionEventData& event);
-};
-
-}  // namespace ui
-
-#endif  // UI_ANDROID_VIEW_CLIENT_H_