Remove the Kasko based out of process browser hang instrumentation.

chrome/chrome_watcher/kasko_util.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 CHROME_CHROME_WATCHER_KASKO_UTIL_H_
-#define CHROME_CHROME_WATCHER_KASKO_UTIL_H_
-
-#include <windows.h>
-
-#include "base/process/process.h"
-#include "base/strings/string16.h"
-
-// Initialize a Kasko reporter.
-bool InitializeKaskoReporter(const base::string16& endpoint,
-                             const base::char16* browser_data_directory);
-
-// Shut down a Kasko reporter.
-void ShutdownKaskoReporter();
-
-// Ensure that a process is a valid target for report capture. This is to
-// defend against against races that exist in getting a Process from a window
-// name (potential HWND and process id recycling).
-bool EnsureTargetProcessValidForCapture(const base::Process& process);
-
-// Dumps a process. A crash key will be added to the report, labelling it as a
-// hang report.
-void DumpHungProcess(DWORD main_thread_id, const base::string16& channel,
-                     const base::char16* hang_type,
-                     const base::Process& process);
-
-#endif  // CHROME_CHROME_WATCHER_KASKO_UTIL_H_