[Android] Always insert a TouchCancel if window or tab focus is lost

content/browser/renderer_host/input/motion_event_web.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/motion_event_web.h"
 
 #include "base/logging.h"
 
 using blink::WebInputEvent;
 using blink::WebTouchEvent;
@@ skipping 81 matching lines @@
   return event_.touches[pointer_index].position.y;
 }
 
 float MotionEventWeb::GetTouchMajor(size_t pointer_index) const {
   DCHECK_LT(pointer_index, GetPointerCount());
   // TODO(jdduke): We should be a bit more careful about axes here.
   return 2.f * std::max(event_.touches[pointer_index].radiusX,
                         event_.touches[pointer_index].radiusY);
 }
 
+float MotionEventWeb::GetPressure(size_t pointer_index) const {
+  return 0.f;
+}
+
 base::TimeTicks MotionEventWeb::GetEventTime() const {
   return base::TimeTicks() +
          base::TimeDelta::FromMicroseconds(event_.timeStampSeconds *
                                            base::Time::kMicrosecondsPerSecond);
 }
 
 size_t MotionEventWeb::GetHistorySize() const { return 0; }
 
 base::TimeTicks MotionEventWeb::GetHistoricalEventTime(
     size_t historical_index) const {
@@ skipping 27 matching lines @@
   WebTouchEvent cancel_event(event_);
 
   cancel_event.type = WebInputEvent::TouchCancel;
   for (size_t i = 0; i < cancel_event.touchesLength; ++i)
     cancel_event.touches[i].state = WebTouchPoint::StateCancelled;
 
   return scoped_ptr<MotionEvent>(new MotionEventWeb(cancel_event));
 }
 
 }  // namespace content