Introduce ViewRoot forwarding input/view events to native

content/browser/renderer_host/render_widget_host_view_android.cc

Index: content/browser/renderer_host/render_widget_host_view_android.cc
diff --git a/content/browser/renderer_host/render_widget_host_view_android.cc b/content/browser/renderer_host/render_widget_host_view_android.cc
index 6d4b39c6098b04e175003267e8ad84bec591681d..afe5bbfd26f285a9176bb1451c3ef7dd479ed3af 100644
--- a/content/browser/renderer_host/render_widget_host_view_android.cc
+++ b/content/browser/renderer_host/render_widget_host_view_android.cc
@@ -447,6 +447,7 @@ RenderWidgetHostViewAndroid::RenderWidgetHostViewAndroid(
       content_view_core_(nullptr),
       ime_adapter_android_(this),
       cached_background_color_(SK_ColorWHITE),
+      view_(this),
       last_compositor_frame_sink_id_(kUndefinedCompositorFrameSinkId),
       gesture_provider_(ui::GetGestureProviderConfig(
                             ui::GestureProviderConfigType::CURRENT_PLATFORM),
@@ -824,6 +825,13 @@ void RenderWidgetHostViewAndroid::SetNeedsBeginFrames(bool needs_begin_frames) {
     ClearBeginFrameRequest(PERSISTENT_BEGIN_FRAME);
 }
 
+bool RenderWidgetHostViewAndroid::OnTouchEvent(
+    const ui::MotionEventAndroid& event,
+    bool is_touch_handle_event) {
+  return is_touch_handle_event ? ProcessTouchHandleEvent(event)
+                               : ProcessTouchEvent(event);
+}
+
 void RenderWidgetHostViewAndroid::OnStartContentIntent(
     const GURL& content_url, bool is_main_frame) {
   if (content_view_core_)
@@ -838,7 +846,7 @@ void RenderWidgetHostViewAndroid::OnSmartClipDataExtracted(
     content_view_core_->OnSmartClipDataExtracted(text, html, rect);
 }
 
-bool RenderWidgetHostViewAndroid::OnTouchEvent(
+bool RenderWidgetHostViewAndroid::ProcessTouchEvent(
     const ui::MotionEvent& event) {
   if (!host_)
     return false;
@@ -880,7 +888,7 @@ bool RenderWidgetHostViewAndroid::OnTouchEvent(
   return true;
 }
 
-bool RenderWidgetHostViewAndroid::OnTouchHandleEvent(
+bool RenderWidgetHostViewAndroid::ProcessTouchHandleEvent(
     const ui::MotionEvent& event) {
   return selection_controller_ &&
          selection_controller_->WillHandleTouchEvent(event);