Make sure that the pressure is always 0 for pointerup events

ui/events/x/events_x_unittest.cc

 // Copyright (c) 2012 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 <X11/XKBlib.h>
 #include <X11/Xlib.h>
 #include <X11/Xutil.h>
 #include <X11/extensions/XInput2.h>
 #include <stddef.h>
 #include <stdint.h>
@@ skipping 287 matching lines @@
   scoped_xevent.InitTouchEvent(
       0, XI_TouchEnd, 5, gfx::Point(30, 30), valuators);
   EXPECT_EQ(ui::ET_TOUCH_RELEASED, ui::EventTypeFromNative(scoped_xevent));
   EXPECT_EQ("30,30",
             gfx::ToFlooredPoint(ui::EventLocationFromNative(scoped_xevent))
                 .ToString());
   EXPECT_EQ(GetTouchId(scoped_xevent), 0);
   EXPECT_FLOAT_EQ(GetTouchAngle(scoped_xevent), 0.25f);
   pointer_details = GetTouchPointerDetailsFromNative(scoped_xevent);
   EXPECT_FLOAT_EQ(pointer_details.radius_x, 10.0f);
-  EXPECT_FLOAT_EQ(pointer_details.force, 0.05f);
+  EXPECT_FLOAT_EQ(pointer_details.force, 0.f);
 
   // Touch with tracking id 6 should have old angle/pressure value and new
   // radius value.
   valuators.clear();
   valuators.push_back(Valuator(DeviceDataManagerX11::DT_TOUCH_MAJOR, 50));
   scoped_xevent.InitTouchEvent(
       0, XI_TouchEnd, 6, gfx::Point(200, 200), valuators);
   EXPECT_EQ(ui::ET_TOUCH_RELEASED, ui::EventTypeFromNative(scoped_xevent));
   EXPECT_EQ("200,200",
             gfx::ToFlooredPoint(ui::EventLocationFromNative(scoped_xevent))
                 .ToString());
   EXPECT_EQ(GetTouchId(scoped_xevent), 1);
   EXPECT_FLOAT_EQ(GetTouchAngle(scoped_xevent), 0.45f);
   pointer_details = GetTouchPointerDetailsFromNative(scoped_xevent);
   EXPECT_FLOAT_EQ(pointer_details.radius_x, 25.0f);
-  EXPECT_FLOAT_EQ(pointer_details.force, 0.5f);
+  EXPECT_FLOAT_EQ(pointer_details.force, 0.f);
 }
 
 int GetTouchIdForTrackingId(uint32_t tracking_id) {
   int slot = 0;
   bool success =
       TouchFactory::GetInstance()->QuerySlotForTrackingID(tracking_id, &slot);
   if (success)
     return slot;
   return -1;
 }
@@ skipping 250 matching lines @@
 
   ResetTimestampRolloverCountersForTesting(
       base::MakeUnique<MockTickClock>(0x100000005));
 
   event.xbutton.time = 0xFFFFFFFF;
   EXPECT_EQ(base::TimeDelta::FromMilliseconds(0xFFFFFFFF).ToInternalValue(),
             ui::EventTimeFromNative(&event).ToInternalValue());
 }
 
 }  // namespace ui