Make first TouchStart and first TouchMove events on a flinging layer non-blocking

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 "content/browser/renderer_host/input/touch_event_queue.h"
 
 #include <stddef.h>
 
 #include <memory>
 #include <utility>
@@ skipping 2696 matching lines @@
   EXPECT_EQ(WebInputEvent::TouchEnd, acked_event().type);
   EXPECT_EQ(0U, queued_event_count());
 
   EXPECT_EQ(WebInputEvent::TouchStart, all_sent_events()[0].type);
   EXPECT_EQ(WebInputEvent::TouchScrollStarted, all_sent_events()[1].type);
   EXPECT_EQ(WebInputEvent::TouchMove, all_sent_events()[2].type);
   EXPECT_EQ(WebInputEvent::TouchEnd, all_sent_events()[3].type);
   EXPECT_EQ(4U, GetAndResetSentEventCount());
 }
 
+// Tests that if touchStartOrFirstTouchMove is correctly set up for touch
+// events.
+TEST_F(TouchEventQueueTest, TouchStartOrFirstTouchMove) {
+  PressTouchPoint(1, 1);
+  SendTouchEventAck(INPUT_EVENT_ACK_STATE_CONSUMED);
+  EXPECT_EQ(WebInputEvent::TouchStart, sent_event().type);
+  EXPECT_TRUE(sent_event().touchStartOrFirstTouchMove);
+
+  MoveTouchPoint(0, 5, 5);
+  SendTouchEventAck(INPUT_EVENT_ACK_STATE_CONSUMED);
+  EXPECT_EQ(WebInputEvent::TouchMove, sent_event().type);
+  EXPECT_TRUE(sent_event().touchStartOrFirstTouchMove);
+
+  MoveTouchPoint(0, 15, 15);
+  SendTouchEventAck(INPUT_EVENT_ACK_STATE_CONSUMED);
+  EXPECT_EQ(WebInputEvent::TouchMove, sent_event().type);
+  EXPECT_FALSE(sent_event().touchStartOrFirstTouchMove);
+
+  ReleaseTouchPoint(0);
+  SendTouchEventAck(INPUT_EVENT_ACK_STATE_CONSUMED);
+  EXPECT_EQ(WebInputEvent::TouchEnd, sent_event().type);
+  EXPECT_FALSE(sent_event().touchStartOrFirstTouchMove);
+}
+
 }  // namespace content