Log device/hid messages to chrome://device-log.

components/device_event_log/device_event_log_impl.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 "components/device_event_log/device_event_log_impl.h"
 
 #include <cmath>
 #include <list>
 #include <set>
 
@@ skipping 12 matching lines @@
 namespace device_event_log {
 
 namespace {
 
 const char* kLogLevelName[] = {"Error", "User", "Event", "Debug"};
 
 const char* kLogTypeNetworkDesc = "Network";
 const char* kLogTypePowerDesc = "Power";
 const char* kLogTypeLoginDesc = "Login";
 const char* kLogTypeUsbDesc = "USB";
+const char* kLogTypeHidDesc = "HID";
 
 std::string GetLogTypeString(LogType type) {
   switch (type) {
     case LOG_TYPE_NETWORK:
       return kLogTypeNetworkDesc;
     case LOG_TYPE_POWER:
       return kLogTypePowerDesc;
     case LOG_TYPE_LOGIN:
       return kLogTypeLoginDesc;
     case LOG_TYPE_USB:
       return kLogTypeUsbDesc;
+    case LOG_TYPE_HID:
+      return kLogTypeHidDesc;
     default:
       NOTREACHED();
       return "Unknown";
   }
 }
 
 std::string DateAndTimeWithMicroseconds(const base::Time& time) {
   base::Time::Exploded exploded;
   time.LocalExplode(&exploded);
   // base::Time::Exploded does not include microseconds, but sometimes we need
@@ skipping 344 matching lines @@
   if (filedesc) {
     file = filedesc;
     size_t last_slash_pos = file.find_last_of("\\/");
     if (last_slash_pos != std::string::npos) {
       file.erase(0, last_slash_pos + 1);
     }
   }
 }
 
 }  // namespace device_event_log