Add constructors to WebInputEvents and setters so we can work at cleaning up these public structs.

content/renderer/input/main_thread_event_queue_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 <stddef.h>
 
 #include <new>
 #include <utility>
 #include <vector>
 
@@ skipping 169 matching lines @@
   }
   histogram_tester.ExpectUniqueSample(kCoalescedCountHistogram, 1, 2);
 }
 
 TEST_P(MainThreadEventQueueTest, NonBlockingTouch) {
   base::HistogramTester histogram_tester;
 
   SyntheticWebTouchEvent kEvents[4];
   kEvents[0].PressPoint(10, 10);
   kEvents[1].PressPoint(10, 10);
-  kEvents[1].modifiers = 1;
+  kEvents[1].setModifiers(1);
   kEvents[1].MovePoint(0, 20, 20);
   kEvents[2].PressPoint(10, 10);
   kEvents[2].MovePoint(0, 30, 30);
   kEvents[3].PressPoint(10, 10);
   kEvents[3].MovePoint(0, 35, 35);
 
   for (SyntheticWebTouchEvent& event : kEvents)
     HandleEvent(event, INPUT_EVENT_ACK_STATE_SET_NON_BLOCKING);
 
   EXPECT_EQ(3u, event_queue().size());
@@ skipping 419 matching lines @@
 
 // The boolean parameterized test varies whether rAF aligned input
 // is enabled or not.
 INSTANTIATE_TEST_CASE_P(
     MainThreadEventQueueTests,
     MainThreadEventQueueTest,
     testing::Range(0u,
                    (kRafAlignedEnabledTouch | kRafAlignedEnabledMouse) + 1));
 
 }  // namespace content