ozone: evdev: Convert CHECKs to DCHECKs per style guide

ui/events/ozone/evdev/event_modifiers_evdev.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 "ui/events/ozone/evdev/event_modifiers_evdev.h"
 
 #include <linux/input.h>
 
 #include "ui/events/event.h"
 
@@ skipping 16 matching lines @@
 
 }  // namespace
 
 EventModifiersEvdev::EventModifiersEvdev()
     : modifier_flags_locked_(0), modifier_flags_(0) {
   memset(modifiers_down_, 0, sizeof(modifiers_down_));
 }
 EventModifiersEvdev::~EventModifiersEvdev() {}
 
 void EventModifiersEvdev::UpdateModifier(unsigned int modifier, bool down) {
-  CHECK_LT(modifier, EVDEV_NUM_MODIFIERS);
+  DCHECK_LT(modifier, EVDEV_NUM_MODIFIERS);
 
   if (down) {
     modifiers_down_[modifier]++;
   } else {
     // Ignore spurious modifier "up" events. This might happen if the
     // button is down during startup.
     if (modifiers_down_[modifier])
       modifiers_down_[modifier]--;
   }
 
   UpdateFlags(modifier);
 }
 
 void EventModifiersEvdev::UpdateModifierLock(unsigned int modifier, bool down) {
-  CHECK_LT(modifier, EVDEV_NUM_MODIFIERS);
+  DCHECK_LT(modifier, EVDEV_NUM_MODIFIERS);
 
   if (down)
     modifier_flags_locked_ ^= kEventFlagFromModifiers[modifier];
 
   // TODO(spang): Synchronize with the CapsLock LED.
 
   UpdateFlags(modifier);
 }
 
 void EventModifiersEvdev::UpdateFlags(unsigned int modifier) {
   int mask = kEventFlagFromModifiers[modifier];
   bool down = modifiers_down_[modifier];
   bool locked = (modifier_flags_locked_ & mask);
   if (down != locked)
     modifier_flags_ |= mask;
   else
     modifier_flags_ &= ~mask;
 }
 
 int EventModifiersEvdev::GetModifierFlags() { return modifier_flags_; }
 
 // static
 int EventModifiersEvdev::GetEventFlagFromModifier(unsigned int modifier) {
   return kEventFlagFromModifiers[modifier];
 }
 
 }  // namespace ui