Make ViewRoot the top of the ViewAndroid tree

content/browser/renderer_host/render_widget_host_view_android.cc

 // Copyright (c) 2012 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.
 
 #include "content/browser/renderer_host/render_widget_host_view_android.h"
 
 #include <android/bitmap.h>
 
 #include <utility>
 
@@ skipping 795 matching lines @@
     AddBeginFrameRequest(PERSISTENT_BEGIN_FRAME);
   else
     ClearBeginFrameRequest(PERSISTENT_BEGIN_FRAME);
 }
 
 void RenderWidgetHostViewAndroid::OnStartContentIntent(
     const GURL& content_url, bool is_main_frame) {
   view_.StartContentIntent(content_url, is_main_frame);
 }
 
-bool RenderWidgetHostViewAndroid::OnTouchEvent(
-    const ui::MotionEvent& event) {
+bool RenderWidgetHostViewAndroid::OnTouchEvent(const ui::MotionEvent& event) {
   if (!host_)
     return false;
 
   ComputeEventLatencyOSTouchHistograms(event);
 
   // If a browser-based widget consumes the touch event, it's critical that
   // touch event interception be disabled. This avoids issues with
   // double-handling for embedder-detected gestures like side swipe.
   if (selection_controller_ &&
       selection_controller_->WillHandleTouchEvent(event)) {
@@ skipping 1170 matching lines @@
   ui::WindowAndroidCompositor* compositor = window_android->GetCompositor();
   if (!compositor)
     return;
 
   overscroll_controller_ = base::MakeUnique<OverscrollControllerAndroid>(
       overscroll_refresh_handler, compositor,
       ui::GetScaleFactorForNativeView(GetNativeView()));
 }
 
 }  // namespace content