Remove touch-scrolling-mode flag

content/browser/renderer_host/input/touch_event_queue_unittest.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 "base/basictypes.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop.h"
 #include "content/browser/renderer_host/input/timeout_monitor.h"
 #include "content/browser/renderer_host/input/touch_event_queue.h"
@@ skipping 19 matching lines @@
 }
 }  // namespace
 
 class TouchEventQueueTest : public testing::Test,
                             public TouchEventQueueClient {
  public:
   TouchEventQueueTest()
       : sent_event_count_(0),
         acked_event_count_(0),
         last_acked_event_state_(INPUT_EVENT_ACK_STATE_UNKNOWN),
-        slop_length_dips_(0),
-        touch_scrolling_mode_(TouchEventQueue::TOUCH_SCROLLING_MODE_DEFAULT) {}
+        slop_length_dips_(0) {}
 
   ~TouchEventQueueTest() override {}
 
   // testing::Test
-  void SetUp() override { ResetQueueWithConfig(CreateConfig()); }
+  void SetUp() override {
+    ResetQueueWithConfig(TouchEventQueue::Config());
+  }
 
   void TearDown() override { queue_.reset(); }
 
   // TouchEventQueueClient
   void SendTouchEventImmediately(
       const TouchEventWithLatencyInfo& event) override {
     ++sent_event_count_;
     last_sent_event_ = event.event;
     if (sync_ack_result_) {
       auto sync_ack_result = sync_ack_result_.Pass();
@@ skipping 14 matching lines @@
     if (followup_gesture_event_) {
       scoped_ptr<WebGestureEvent> followup_gesture_event =
           followup_gesture_event_.Pass();
       queue_->OnGestureScrollEvent(
           GestureEventWithLatencyInfo(*followup_gesture_event,
                                       ui::LatencyInfo()));
     }
   }
 
  protected:
-  TouchEventQueue::Config CreateConfig() {
-    TouchEventQueue::Config config;
-    config.touch_scrolling_mode = touch_scrolling_mode_;
-    return config;
-  }
-
-  void SetTouchScrollingMode(TouchEventQueue::TouchScrollingMode mode) {
-    touch_scrolling_mode_ = mode;
-    ResetQueueWithConfig(CreateConfig());
-  }
-
   void SetUpForTouchMoveSlopTesting(double slop_length_dips) {
     slop_length_dips_ = slop_length_dips;
   }
 
   void SetUpForTimeoutTesting(base::TimeDelta timeout_delay) {
-    TouchEventQueue::Config config = CreateConfig();
+    TouchEventQueue::Config config;
     config.touch_ack_timeout_delay = timeout_delay;
     config.touch_ack_timeout_supported = true;
     ResetQueueWithConfig(config);
   }
 
   void SendTouchEvent(WebTouchEvent event) {
     if (slop_length_dips_) {
       event.causesScrollingIfUncanceled = false;
       if (WebTouchEventTraits::IsTouchSequenceStart(event))
         anchor_ = event.touches[0].position;
@@ skipping 189 matching lines @@
   size_t acked_event_count_;
   WebTouchEvent last_sent_event_;
   WebTouchEvent last_acked_event_;
   InputEventAckState last_acked_event_state_;
   SyntheticWebTouchEvent touch_event_;
   scoped_ptr<WebTouchEvent> followup_touch_event_;
   scoped_ptr<WebGestureEvent> followup_gesture_event_;
   scoped_ptr<InputEventAckState> sync_ack_result_;
   double slop_length_dips_;
   gfx::PointF anchor_;
-  TouchEventQueue::TouchScrollingMode touch_scrolling_mode_;
   base::MessageLoopForUI message_loop_;
 };
 
 
 // Tests that touch-events are queued properly.
 TEST_F(TouchEventQueueTest, Basic) {
   PressTouchPoint(1, 1);
   EXPECT_EQ(1U, queued_event_count());
   EXPECT_EQ(1U, GetAndResetSentEventCount());
 
@@ skipping 663 matching lines @@
   EXPECT_EQ(1U, GetAndResetSentEventCount());
   SendTouchEventAck(INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
   EXPECT_EQ(1U, GetAndResetAckedEventCount());
 
   ReleaseTouchPoint(0);
   EXPECT_EQ(1U, GetAndResetSentEventCount());
   SendTouchEventAck(INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
   EXPECT_EQ(1U, GetAndResetAckedEventCount());
 }
 
-// Tests that no TouchEvents are sent to renderer during scrolling.
-TEST_F(TouchEventQueueTest, TouchCancelOnScroll) {
-  SetTouchScrollingMode(TouchEventQueue::TOUCH_SCROLLING_MODE_TOUCHCANCEL);
-  // Queue a TouchStart.
-  PressTouchPoint(0, 1);
-  EXPECT_EQ(1U, GetAndResetSentEventCount());
-  SendTouchEventAck(INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
-  EXPECT_EQ(1U, GetAndResetAckedEventCount());
-
-  MoveTouchPoint(0, 20, 5);
-  EXPECT_EQ(1U, queued_event_count());
-  EXPECT_EQ(1U, GetAndResetSentEventCount());
-
-  MoveTouchPoint(0, 30, 15);
-  EXPECT_EQ(2U, queued_event_count());
-  EXPECT_EQ(0U, GetAndResetSentEventCount());
-
-  // Queue another TouchStart.
-  PressTouchPoint(20, 20);
-  EXPECT_EQ(3U, queued_event_count());
-  EXPECT_EQ(0U, GetAndResetSentEventCount());
-  EXPECT_EQ(WebInputEvent::TouchStart, latest_event().type);
-
-  WebGestureEvent followup_scroll;
-  followup_scroll.type = WebInputEvent::GestureScrollBegin;
-  SetFollowupEvent(followup_scroll);
-  SendTouchEventAck(INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
-  EXPECT_EQ(1U, GetAndResetSentEventCount());
-  EXPECT_EQ(1U, GetAndResetAckedEventCount());
-  EXPECT_EQ(2U, queued_event_count());
-  EXPECT_TRUE(sent_event().cancelable);
-  EXPECT_EQ(WebInputEvent::TouchMove, sent_event().type);
-
-  // GestureScrollUpdate inserts a synthetic TouchCancel before the TouchStart.
-  followup_scroll.type = WebInputEvent::GestureScrollUpdate;
-  SetFollowupEvent(followup_scroll);
-  SendTouchEventAck(INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
-  EXPECT_EQ(1U, GetAndResetSentEventCount());
-  EXPECT_EQ(1U, GetAndResetAckedEventCount());
-  EXPECT_EQ(2U, queued_event_count());
-  EXPECT_EQ(WebInputEvent::TouchCancel, sent_event().type);
-  EXPECT_FALSE(sent_event().cancelable);
-  EXPECT_EQ(WebInputEvent::TouchStart, latest_event().type);
-
-  // Acking the TouchCancel will result in dispatch of the next TouchStart.
-  SendTouchEventAck(INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
-  // The synthetic TouchCancel should not reach client, only the TouchStart.
-  EXPECT_EQ(1U, GetAndResetAckedEventCount());
-  EXPECT_EQ(0U, GetAndResetSentEventCount());
-  EXPECT_EQ(WebInputEvent::TouchStart, acked_event().type);
-
-  // TouchMove should not be sent to the renderer.
-  MoveTouchPoint(0, 30, 5);
-  EXPECT_EQ(1U, GetAndResetAckedEventCount());
-  EXPECT_EQ(0U, GetAndResetSentEventCount());
-  EXPECT_EQ(INPUT_EVENT_ACK_STATE_NO_CONSUMER_EXISTS, acked_event_state());
-
-  // GestureScrollUpdates should not change affect touch forwarding.
-  SendGestureEvent(WebInputEvent::GestureScrollUpdate);
-
-  // TouchEnd should not be sent to the renderer.
-  ReleaseTouchPoint(0);
-  EXPECT_EQ(1U, GetAndResetAckedEventCount());
-  EXPECT_EQ(0U, GetAndResetSentEventCount());
-  EXPECT_EQ(INPUT_EVENT_ACK_STATE_NO_CONSUMER_EXISTS, acked_event_state());
-
-  ReleaseTouchPoint(0);
-  EXPECT_EQ(1U, GetAndResetAckedEventCount());
-  EXPECT_EQ(0U, GetAndResetSentEventCount());
-  EXPECT_EQ(INPUT_EVENT_ACK_STATE_NO_CONSUMER_EXISTS, acked_event_state());
-
-  // Touch events from a new gesture sequence should be forwarded normally.
-  PressTouchPoint(80, 10);
-  EXPECT_EQ(1U, GetAndResetSentEventCount());
-  SendTouchEventAck(INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
-  EXPECT_EQ(1U, GetAndResetAckedEventCount());
-
-  MoveTouchPoint(0, 80, 20);
-  EXPECT_EQ(1U, GetAndResetSentEventCount());
-  SendTouchEventAck(INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
-  EXPECT_EQ(1U, GetAndResetAckedEventCount());
-
-  ReleaseTouchPoint(0);
-  EXPECT_EQ(1U, GetAndResetSentEventCount());
-  SendTouchEventAck(INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
-  EXPECT_EQ(1U, GetAndResetAckedEventCount());
-}
-
-// Tests that a scroll event will not insert a synthetic TouchCancel if there
-// was no consumer for the current touch sequence.
-TEST_F(TouchEventQueueTest, NoTouchCancelOnScrollIfNoConsumer) {
-  SetTouchScrollingMode(TouchEventQueue::TOUCH_SCROLLING_MODE_TOUCHCANCEL);
-
-  // Queue a TouchStart.
-  PressTouchPoint(0, 1);
-  EXPECT_EQ(1U, GetAndResetSentEventCount());
-  SendTouchEventAck(INPUT_EVENT_ACK_STATE_NO_CONSUMER_EXISTS);
-  EXPECT_EQ(1U, GetAndResetAckedEventCount());
-  EXPECT_EQ(WebInputEvent::TouchStart, sent_event().type);
-
-  // Queue a TouchMove that turns into a GestureScrollBegin.
-  WebGestureEvent followup_scroll;
-  followup_scroll.type = WebInputEvent::GestureScrollBegin;
-  SetFollowupEvent(followup_scroll);
-  MoveTouchPoint(0, 20, 5);
-
-  // The TouchMove has no consumer, and should be ack'ed immediately. However,
-  // *no* synthetic TouchCancel should be inserted as the touch sequence
-  // had no consumer.
-  EXPECT_EQ(0U, queued_event_count());
-  EXPECT_EQ(0U, GetAndResetSentEventCount());
-  EXPECT_EQ(1U, GetAndResetAckedEventCount());
-  EXPECT_EQ(0U, queued_event_count());
-  EXPECT_EQ(WebInputEvent::TouchStart, sent_event().type);
-
-  // Subsequent TouchMove's should not be sent to the renderer.
-  MoveTouchPoint(0, 30, 5);
-  EXPECT_EQ(1U, GetAndResetAckedEventCount());
-  EXPECT_EQ(0U, GetAndResetSentEventCount());
-  EXPECT_EQ(INPUT_EVENT_ACK_STATE_NO_CONSUMER_EXISTS, acked_event_state());
-
-  // TouchEnd should not be sent to the renderer.
-  ReleaseTouchPoint(0);
-  EXPECT_EQ(1U, GetAndResetAckedEventCount());
-  EXPECT_EQ(0U, GetAndResetSentEventCount());
-  EXPECT_EQ(INPUT_EVENT_ACK_STATE_NO_CONSUMER_EXISTS, acked_event_state());
-
-  // Touch events from a new gesture sequence should be forwarded normally.
-  PressTouchPoint(80, 10);
-  EXPECT_EQ(1U, GetAndResetSentEventCount());
-  SendTouchEventAck(INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
-  EXPECT_EQ(1U, GetAndResetAckedEventCount());
-}
-
 // Tests that IsTouchStartPendingAck works correctly.
 TEST_F(TouchEventQueueTest, PendingStart) {
 
   EXPECT_FALSE(IsPendingAckTouchStart());
 
   // Send the touchstart for one point (#1).
   PressTouchPoint(1, 1);
   EXPECT_EQ(1U, queued_event_count());
   EXPECT_TRUE(IsPendingAckTouchStart());
 
@@ skipping 572 matching lines @@
   EXPECT_EQ(1U, GetAndResetAckedEventCount());
   EXPECT_EQ(INPUT_EVENT_ACK_STATE_NO_CONSUMER_EXISTS, acked_event_state());
 
   // Neither should any further touchmoves be forwarded.
   MoveTouchPoint(1, 25, 0);
   EXPECT_EQ(0U, GetAndResetSentEventCount());
   EXPECT_EQ(1U, GetAndResetAckedEventCount());
   EXPECT_EQ(INPUT_EVENT_ACK_STATE_NO_CONSUMER_EXISTS, acked_event_state());
 }
 
-TEST_F(TouchEventQueueTest, SyncTouchMoveDoesntCancelTouchOnScroll) {
- SetTouchScrollingMode(TouchEventQueue::TOUCH_SCROLLING_MODE_SYNC_TOUCHMOVE);
- // Queue a TouchStart.
- PressTouchPoint(0, 1);
- EXPECT_EQ(1U, GetAndResetSentEventCount());
- SendTouchEventAck(INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
- EXPECT_EQ(1U, GetAndResetAckedEventCount());
-
- MoveTouchPoint(0, 20, 5);
- EXPECT_EQ(1U, queued_event_count());
- EXPECT_EQ(1U, GetAndResetSentEventCount());
-
- // GestureScrollBegin doesn't insert a synthetic TouchCancel.
- WebGestureEvent followup_scroll;
- followup_scroll.type = WebInputEvent::GestureScrollBegin;
- SetFollowupEvent(followup_scroll);
- SendTouchEventAck(INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
- EXPECT_EQ(0U, GetAndResetSentEventCount());
- EXPECT_EQ(1U, GetAndResetAckedEventCount());
- EXPECT_EQ(0U, queued_event_count());
-}
-
 TEST_F(TouchEventQueueTest, AsyncTouch) {
-  SetTouchScrollingMode(TouchEventQueue::TOUCH_SCROLLING_MODE_ASYNC_TOUCHMOVE);
-
   // Queue a TouchStart.
   PressTouchPoint(0, 1);
   EXPECT_EQ(1U, GetAndResetSentEventCount());
   SendTouchEventAck(INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
   EXPECT_EQ(1U, GetAndResetAckedEventCount());
 
   for (int i = 0; i < 3; ++i) {
    SendGestureEventAck(WebInputEvent::GestureScrollUpdate,
                        INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
 
@@ skipping 11 matching lines @@
    SendTouchEventAck(INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
    EXPECT_TRUE(HasPendingAsyncTouchMove());
    EXPECT_EQ(0U, queued_event_count());
    EXPECT_EQ(0U, GetAndResetSentEventCount());
   }
 }
 
 // Ensure that touchmove's are appropriately throttled during a typical
 // scroll sequences that transitions between scrolls consumed and unconsumed.
 TEST_F(TouchEventQueueTest, AsyncTouchThrottledAfterScroll) {
-  SetTouchScrollingMode(TouchEventQueue::TOUCH_SCROLLING_MODE_ASYNC_TOUCHMOVE);
-
   // Process a TouchStart
   PressTouchPoint(0, 1);
   EXPECT_EQ(1U, GetAndResetSentEventCount());
   SendTouchEventAck(INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
   EXPECT_EQ(1U, GetAndResetAckedEventCount());
 
   // Now send the first touch move and associated GestureScrollBegin.
   MoveTouchPoint(0, 0, 5);
   WebGestureEvent followup_scroll;
   followup_scroll.type = WebInputEvent::GestureScrollBegin;
@@ skipping 175 matching lines @@
   EXPECT_EQ(1U, GetAndResetSentEventCount());
   EXPECT_EQ(1U, GetAndResetAckedEventCount());
 
   SendTouchEventAck(INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
   EXPECT_EQ(0U, queued_event_count());
   EXPECT_EQ(0U, GetAndResetSentEventCount());
   EXPECT_EQ(1U, GetAndResetAckedEventCount());
 }
 
 TEST_F(TouchEventQueueTest, AsyncTouchFlushedByTouchEnd) {
-  SetTouchScrollingMode(TouchEventQueue::TOUCH_SCROLLING_MODE_ASYNC_TOUCHMOVE);
-
   PressTouchPoint(0, 0);
   SendTouchEventAck(INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
   EXPECT_EQ(1U, GetAndResetSentEventCount());
   EXPECT_EQ(1U, GetAndResetAckedEventCount());
 
   // Initiate async touchmove dispatch after the start of a scroll sequence.
   MoveTouchPoint(0, 0, 5);
   WebGestureEvent followup_scroll;
   followup_scroll.type = WebInputEvent::GestureScrollBegin;
   SetFollowupEvent(followup_scroll);
@@ skipping 35 matching lines @@
   // Touchend is not cancelable during async touch dispatch.
   SendTouchEventAck(INPUT_EVENT_ACK_STATE_IGNORED);
   EXPECT_EQ(WebInputEvent::TouchEnd, sent_event().type);
   EXPECT_FALSE(sent_event().cancelable);
   EXPECT_EQ(1U, GetAndResetSentEventCount());
 }
 
 // Ensure that async touch dispatch and touch ack timeout interactions work
 // appropriately.
 TEST_F(TouchEventQueueTest, AsyncTouchWithAckTimeout) {
-  SetTouchScrollingMode(TouchEventQueue::TOUCH_SCROLLING_MODE_ASYNC_TOUCHMOVE);
   SetUpForTimeoutTesting(DefaultTouchTimeoutDelay());
 
   // The touchstart should start the timeout.
   PressTouchPoint(0, 0);
   EXPECT_EQ(1U, GetAndResetSentEventCount());
   EXPECT_TRUE(IsTimeoutRunning());
   SendTouchEventAck(INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
   EXPECT_EQ(1U, GetAndResetAckedEventCount());
   EXPECT_FALSE(IsTimeoutRunning());
 
@@ skipping 62 matching lines @@
                       INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
   MoveTouchPoint(0, 25, 5);
   EXPECT_FALSE(HasPendingAsyncTouchMove());
   EXPECT_EQ(1U, GetAndResetAckedEventCount());
   EXPECT_EQ(0U, GetAndResetSentEventCount());
 }
 
 // Ensure that if the touch ack for an async touchmove triggers a follow-up
 // touch event, that follow-up touch will be forwarded appropriately.
 TEST_F(TouchEventQueueTest, AsyncTouchWithTouchCancelAfterAck) {
-  SetTouchScrollingMode(TouchEventQueue::TOUCH_SCROLLING_MODE_ASYNC_TOUCHMOVE);
-
   PressTouchPoint(0, 0);
   EXPECT_EQ(1U, GetAndResetSentEventCount());
   SendTouchEventAck(INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
   EXPECT_EQ(1U, GetAndResetAckedEventCount());
 
   // The start of a scroll gesture should trigger async touch event dispatch.
   MoveTouchPoint(0, 1, 1);
   EXPECT_EQ(1U, GetAndResetSentEventCount());
   WebGestureEvent followup_scroll;
   followup_scroll.type = WebInputEvent::GestureScrollBegin;
@@ skipping 33 matching lines @@
   SendTouchEventAck(INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
   EXPECT_EQ(0U, queued_event_count());
   EXPECT_EQ(WebInputEvent::TouchCancel, acked_event().type);
   EXPECT_EQ(1U, GetAndResetAckedEventCount());
   EXPECT_EQ(0U, GetAndResetSentEventCount());
 }
 
 // Ensure that the async touch is fully reset if the touch sequence restarts
 // without properly terminating.
 TEST_F(TouchEventQueueTest, AsyncTouchWithHardTouchStartReset) {
-  SetTouchScrollingMode(TouchEventQueue::TOUCH_SCROLLING_MODE_ASYNC_TOUCHMOVE);
-
   PressTouchPoint(0, 0);
   EXPECT_EQ(1U, GetAndResetSentEventCount());
   SendTouchEventAck(INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
   EXPECT_EQ(1U, GetAndResetAckedEventCount());
 
   // Trigger async touchmove dispatch.
   MoveTouchPoint(0, 1, 1);
   EXPECT_EQ(1U, GetAndResetSentEventCount());
   WebGestureEvent followup_scroll;
   followup_scroll.type = WebInputEvent::GestureScrollBegin;
@@ skipping 17 matching lines @@
   ResetTouchEvent();
 
   PressTouchPoint(0, 0);
   EXPECT_EQ(1U, GetAndResetSentEventCount());
   EXPECT_EQ(WebInputEvent::TouchStart, sent_event().type);
   SendTouchEventAck(INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
   EXPECT_EQ(1U, GetAndResetAckedEventCount());
 }
 
 TEST_F(TouchEventQueueTest, TouchAbsorptionWithConsumedFirstMove) {
-  SetTouchScrollingMode(TouchEventQueue::TOUCH_SCROLLING_MODE_ASYNC_TOUCHMOVE);
-
   // Queue a TouchStart.
   PressTouchPoint(0, 1);
   SendTouchEventAck(INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
   EXPECT_EQ(0U, queued_event_count());
   EXPECT_EQ(1U, GetAndResetAckedEventCount());
 
   MoveTouchPoint(0, 20, 5);
   SendGestureEvent(blink::WebInputEvent::GestureScrollBegin);
   SendTouchEventAck(INPUT_EVENT_ACK_STATE_CONSUMED);
   EXPECT_EQ(0U, queued_event_count());
@@ skipping 19 matching lines @@
   EXPECT_EQ(1U, GetAndResetSentEventCount());
 
   // Touch move event is throttled.
   MoveTouchPoint(0, 60, 5);
   SendTouchEventAck(INPUT_EVENT_ACK_STATE_CONSUMED);
   EXPECT_EQ(0U, queued_event_count());
   EXPECT_EQ(0U, GetAndResetSentEventCount());
 }
 
 TEST_F(TouchEventQueueTest, TouchStartCancelableDuringScroll) {
-  SetTouchScrollingMode(TouchEventQueue::TOUCH_SCROLLING_MODE_ASYNC_TOUCHMOVE);
-
   // Queue a touchstart and touchmove that go unconsumed, transitioning to an
   // active scroll sequence.
   PressTouchPoint(0, 1);
   SendTouchEventAck(INPUT_EVENT_ACK_STATE_NOT_CONSUMED);
   ASSERT_EQ(1U, GetAndResetSentEventCount());
   EXPECT_TRUE(sent_event().cancelable);
 
   MoveTouchPoint(0, 20, 5);
   EXPECT_TRUE(sent_event().cancelable);
   SendGestureEvent(blink::WebInputEvent::GestureScrollBegin);
@@ skipping 187 matching lines @@
   // Receive an ACK for previous TouchMove.
   SendTouchEventAck(INPUT_EVENT_ACK_STATE_CONSUMED);
 
   // TouchMove is sent, but pointer state should be StateStationary.
   const WebTouchEvent& event4 = sent_event();
   EXPECT_EQ(WebInputEvent::TouchMove, event4.type);
   EXPECT_EQ(WebTouchPoint::StateStationary, event4.touches[0].state);
 }
 
 }  // namespace content