[DevTools] Ignore TouchEmulator::CancelTouch calls when disabled.

content/browser/renderer_host/input/touch_emulator.cc

 // Copyright 2014 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/touch_emulator.h"
 
 #include "content/browser/renderer_host/input/motion_event_web.h"
 #include "content/browser/renderer_host/input/web_input_event_util.h"
 #include "content/common/input/web_touch_event_traits.h"
 #include "content/grit/content_resources.h"
@@ skipping 313 matching lines @@
       suppress_next_fling_cancel_ = false;
       break;
 
     default:
       // Everything else goes through.
       client_->ForwardGestureEvent(gesture_event);
   }
 }
 
 void TouchEmulator::CancelTouch() {
-  if (!emulated_stream_active_sequence_count_)
+  if (!emulated_stream_active_sequence_count_ || !enabled())
     return;
 
   WebTouchEventTraits::ResetTypeAndTouchStates(
       WebInputEvent::TouchCancel,
       (base::TimeTicks::Now() - base::TimeTicks()).InSecondsF(),
       &touch_event_);
   DCHECK(gesture_provider_);
   if (gesture_provider_->GetCurrentDownEvent())
     HandleEmulatedTouchEvent(touch_event_);
 }
@@ skipping 91 matching lines @@
   point.screenPosition.x = mouse_event.globalX;
   point.position.y = mouse_event.y;
   point.screenPosition.y = mouse_event.globalY;
 }
 
 bool TouchEmulator::InPinchGestureMode() const {
   return shift_pressed_;
 }
 
 }  // namespace content