base: Remove the string logging from CHECK().

ui/events/devices/device_data_manager.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/devices/device_data_manager.h"
 
 #include "base/at_exit.h"
 #include "base/bind.h"
 #include "base/logging.h"
 #include "ui/display/types/display_constants.h"
@@ skipping 63 matching lines @@
 // static
 void DeviceDataManager::DeleteInstance() {
   if (instance_) {
     delete instance_;
     instance_ = nullptr;
   }
 }
 
 // static
 DeviceDataManager* DeviceDataManager::GetInstance() {
-  CHECK(instance_) << "DeviceDataManager was not created.";
+  // DeviceDataManager was not created.
+  CHECK(instance_);
   return instance_;
 }
 
 // static
 bool DeviceDataManager::HasInstance() {
   return instance_ != nullptr;
 }
 
 void DeviceDataManager::ClearTouchDeviceAssociations() {
   for (auto& touch_info : touch_map_)
@@ skipping 157 matching lines @@
 
 void DeviceDataManager::SetTouchscreensEnabled(bool enabled) {
   touch_screens_enabled_ = enabled;
 }
 
 bool DeviceDataManager::AreTouchscreensEnabled() const {
   return touch_screens_enabled_;
 }
 
 }  // namespace ui