Revert of Makes sure the keyboard typing isn't blocked when InputMethod::OnFocus() is not correctly

ui/base/ime/input_method_log_collector.h

-// Copyright 2016 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 UI_BASE_IME_INPUT_METHOD_LOG_COLLECTOR_H_
-#define UI_BASE_IME_INPUT_METHOD_LOG_COLLECTOR_H_
-
-#include <string>
-#include <vector>
-
-#include "base/macros.h"
-#include "ui/base/ime/ui_base_ime_export.h"
-
-namespace ui {
-
-// The class to gather some logs and dump it through
-// base::debug::DumpWithoutCrashing when InputMethod processing a key event.
-// This is for tracing the issue that hardly repros: crbug.com/569339.
-class UI_BASE_IME_EXPORT InputMethodLogCollector {
- public:
-  InputMethodLogCollector();
-  ~InputMethodLogCollector();
-  void AddString(const char* str_val);
-  void AddBoolean(bool bool_val);
-  void DumpLogs();
-  void ClearLogs();
-
- private:
-  std::vector<const char*> logs_;
-
-  DISALLOW_COPY_AND_ASSIGN(InputMethodLogCollector);
-};
-
-}  // namespace ui
-
-#endif  // UI_BASE_IME_INPUT_METHOD_LOG_COLLECTOR_H_