Handle floating point coordinates from ozone to exosphere

ui/ozone/platform/wayland/wayland_pointer_unittest.cc

 // Copyright 2016 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 <linux/input.h>
 #include <wayland-server.h>
 
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/events/event.h"
@@ skipping 72 matching lines @@
   EXPECT_CALL(delegate, DispatchEvent(_)).WillOnce(CloneEvent(&event));
 
   Sync();
 
   ASSERT_TRUE(event);
   ASSERT_TRUE(event->IsMouseEvent());
   auto mouse_event = event->AsMouseEvent();
   EXPECT_EQ(ET_MOUSE_MOVED, mouse_event->type());
   EXPECT_EQ(0, mouse_event->button_flags());
   EXPECT_EQ(0, mouse_event->changed_button_flags());
-  // TODO(forney): Once crbug.com/337827 is solved, compare with the fractional
-  // coordinates sent above.
-  EXPECT_EQ(gfx::PointF(10, 20), mouse_event->location_f());
-  EXPECT_EQ(gfx::PointF(10, 20), mouse_event->root_location_f());
+  EXPECT_EQ(gfx::PointF(10.75, 20.375), mouse_event->location_f());
+  EXPECT_EQ(gfx::PointF(10.75, 20.375), mouse_event->root_location_f());
 }
 
 TEST_F(WaylandPointerTest, MotionDragged) {
   wl_pointer_send_enter(pointer->resource(), 1, surface->resource(), 0, 0);
   wl_pointer_send_button(pointer->resource(), 2, 1002, BTN_MIDDLE,
                          WL_POINTER_BUTTON_STATE_PRESSED);
 
   Sync();
 
   std::unique_ptr<Event> event;
@@ skipping 116 matching lines @@
   auto mouse_wheel_event = event->AsMouseWheelEvent();
   EXPECT_EQ(gfx::Vector2d(MouseWheelEvent::kWheelDelta, 0),
             mouse_wheel_event->offset());
   EXPECT_EQ(EF_LEFT_MOUSE_BUTTON, mouse_wheel_event->button_flags());
   EXPECT_EQ(0, mouse_wheel_event->changed_button_flags());
   EXPECT_EQ(gfx::PointF(50, 75), mouse_wheel_event->location_f());
   EXPECT_EQ(gfx::PointF(50, 75), mouse_wheel_event->root_location_f());
 }
 
 }  // namespace ui