Clean up header files.

ui/events/android/scroller_unittest.cc

 // Copyright 2014 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 <limits.h>
+
 #include "base/time/time.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/events/android/scroller.h"
 
 namespace ui {
 namespace {
 
 const float kDefaultStartX = 7.f;
 const float kDefaultStartY = 25.f;
 const float kDefaultDeltaX = -20.f;
@@ skipping 152 matching lines @@
   // Try to advance further; nothing should change.
   EXPECT_FALSE(scroller.ComputeScrollOffset(
       start_time + scroll_duration * 2, &offset, &velocity));
   EXPECT_EQ(scroller.GetFinalX(), offset.x());
   EXPECT_EQ(scroller.GetFinalY(), offset.y());
   EXPECT_TRUE(scroller.IsFinished());
   EXPECT_EQ(scroll_duration, scroller.GetTimePassed());
 }
 
 }  // namespace ui