Delete unused Logger class in components/invalidation

Bug: none
Change-Id: I0bce94804ed7d9877ca2189a56e139e75eb47550
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1943178
Commit-Queue: Marc Treib <treib@chromium.org>
Commit-Queue: Mohamed Amir Yosef <mamir@chromium.org>
Auto-Submit: Marc Treib <treib@chromium.org>
Reviewed-by: Mohamed Amir Yosef <mamir@chromium.org>
Cr-Commit-Position: refs/heads/master@{#720186}

components/invalidation/impl/BUILD.gn

@@ -48,8 +48,6 @@ static_library("impl") {
     "invalidator_registrar_with_memory.h",
     "invalidator_storage.cc",
     "invalidator_storage.h",
-    "logger.cc",
-    "logger.h",
     "mock_ack_handler.cc",
     "mock_ack_handler.h",
     "per_user_topic_registration_manager.cc",

components/invalidation/impl/fcm_invalidation_listener.h

@@ -13,7 +13,6 @@
 #include "components/invalidation/impl/channels_states.h"
 #include "components/invalidation/impl/fcm_sync_network_channel.h"
 #include "components/invalidation/impl/invalidation_listener.h"
-#include "components/invalidation/impl/logger.h"
 #include "components/invalidation/impl/per_user_topic_registration_manager.h"
 #include "components/invalidation/impl/unacked_invalidation_set.h"
 #include "components/invalidation/public/ack_handler.h"
@@ -122,7 +121,6 @@ class FCMInvalidationListener : public InvalidationListener,
   std::unique_ptr<FCMSyncNetworkChannel> network_channel_;
   UnackedInvalidationsMap unacked_invalidations_map_;
   Delegate* delegate_;
-  Logger logger_;
 
   // Stored to pass to |per_user_topic_registration_manager_| on start.
   Topics registered_topics_;

components/invalidation/impl/logger.cc

-// Copyright 2018 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/invalidation/impl/logger.h"
-
-#include "base/logging.h"
-#include "base/strings/stringprintf.h"
-
-namespace syncer {
-
-Logger::Logger() {}
-Logger::~Logger() {}
-
-void Logger::Log(LogLevel level,
-                 const char* file,
-                 int line,
-                 const char* format,
-                 ...) {
-  logging::LogSeverity log_severity = -2;  // VLOG(2)
-  bool emit_log = false;
-  switch (level) {
-    case FINE_LEVEL:
-      log_severity = -2;  // VLOG(2)
-      emit_log = VLOG_IS_ON(2);
-      break;
-    case INFO_LEVEL:
-      log_severity = -1;  // VLOG(1)
-      emit_log = VLOG_IS_ON(1);
-      break;
-    case WARNING_LEVEL:
-      log_severity = logging::LOG_WARNING;
-      emit_log = LOG_IS_ON(WARNING);
-      break;
-    case SEVERE_LEVEL:
-      log_severity = logging::LOG_ERROR;
-      emit_log = LOG_IS_ON(ERROR);
-      break;
-  }
-  if (emit_log) {
-    va_list ap;
-    va_start(ap, format);
-    std::string result;
-    base::StringAppendV(&result, format, ap);
-    logging::LogMessage(file, line, log_severity).stream() << result;
-    va_end(ap);
-  }
-}
-
-}  // namespace syncer

components/invalidation/impl/logger.h

-// Copyright 2018 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.
-
-#ifndef COMPONENTS_INVALIDATION_IMPL_LOGGER_H_
-#define COMPONENTS_INVALIDATION_IMPL_LOGGER_H_
-
-#include <string>
-
-#define TLOG(logger, level, str, ...) \
-  logger->Log(Logger::level##_LEVEL, __FILE__, __LINE__, str, ##__VA_ARGS__);
-
-namespace syncer {
-
-// Forward logging messages to the approppriate channel.
-class Logger {
- public:
-  enum LogLevel { FINE_LEVEL, INFO_LEVEL, WARNING_LEVEL, SEVERE_LEVEL };
-
-  Logger();
-
-  ~Logger();
-
-  // invalidation::Logger implementation.
-  void Log(LogLevel level, const char* file, int line, const char* format, ...);
-};
-
-}  // namespace syncer
-
-#endif  // COMPONENTS_INVALIDATION_IMPL_LOGGER_H_