Disable the passthrough touch event queue for now.

content/browser/renderer_host/input/input_router_impl.cc

 // Copyright 2013 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/input/input_router_impl.h"
 
 #include <math.h>
 
 #include <utility>
 
@@ skipping 76 matching lines @@
       move_caret_pending_(false),
       current_ack_source_(ACK_SOURCE_NONE),
       flush_requested_(false),
       active_renderer_fling_count_(0),
       touch_scroll_started_sent_(false),
       wheel_event_queue_(this,
                          base::FeatureList::IsEnabled(
                              features::kTouchpadAndWheelScrollLatching)),
       gesture_event_queue_(this, this, config.gesture_config),
       device_scale_factor_(1.f) {
-  if (base::FeatureList::IsEnabled(features::kRafAlignedTouchInputEvents))
+  // TODO(dtapuska): Figure out regression caused by activating
+  // the passthrough queue. crbug.com/697871
+  if (false &&
+      base::FeatureList::IsEnabled(features::kRafAlignedTouchInputEvents)) {
     touch_event_queue_.reset(
         new PassthroughTouchEventQueue(this, config.touch_config));
-  else
+  } else {
     touch_event_queue_.reset(
         new LegacyTouchEventQueue(this, config.touch_config));
+  }
 
   DCHECK(sender);
   DCHECK(client);
   DCHECK(ack_handler);
   UpdateTouchAckTimeoutEnabled();
 }
 
 InputRouterImpl::~InputRouterImpl() {
 }
 
@@ skipping 552 matching lines @@
         DCHECK(global_touch_position_.find(touch_point->id) ==
                global_touch_position_.end());
         global_touch_position_[touch_point->id] = gfx::Point(
             touch_point->screenPosition.x, touch_point->screenPosition.y);
       }
     }
   }
 }
 
 }  // namespace content