Remove base::NonThreadSafe now that all users are gone!!

base/threading/non_thread_safe_unittest.cc

Index: base/threading/non_thread_safe_unittest.cc
diff --git a/base/threading/non_thread_safe_unittest.cc b/base/threading/non_thread_safe_unittest.cc
deleted file mode 100644
index 89d48a09458c6d67367a747f8ab61e15adc2d6a6..0000000000000000000000000000000000000000
--- a/base/threading/non_thread_safe_unittest.cc
+++ /dev/null
@@ -1,150 +0,0 @@
-// Copyright (c) 2012 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 "base/threading/non_thread_safe.h"
-
-#include <memory>
-
-#include "base/logging.h"
-#include "base/macros.h"
-#include "base/test/gtest_util.h"
-#include "base/threading/simple_thread.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace base {
-
-namespace {
-
-// Simple class to exersice the basics of NonThreadSafe.
-// Both the destructor and DoStuff should verify that they were
-// called on the same thread as the constructor.
-class NonThreadSafeClass : public NonThreadSafe {
- public:
-  NonThreadSafeClass() {}
-
-  // Verifies that it was called on the same thread as the constructor.
-  void DoStuff() {
-    DCHECK(CalledOnValidThread());
-  }
-
-  void DetachFromThread() {
-    NonThreadSafe::DetachFromThread();
-  }
-
-  static void MethodOnDifferentThreadImpl();
-  static void DestructorOnDifferentThreadImpl();
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(NonThreadSafeClass);
-};
-
-// Calls NonThreadSafeClass::DoStuff on another thread.
-class CallDoStuffOnThread : public SimpleThread {
- public:
-  explicit CallDoStuffOnThread(NonThreadSafeClass* non_thread_safe_class)
-      : SimpleThread("call_do_stuff_on_thread"),
-        non_thread_safe_class_(non_thread_safe_class) {
-  }
-
-  void Run() override { non_thread_safe_class_->DoStuff(); }
-
- private:
-  NonThreadSafeClass* non_thread_safe_class_;
-
-  DISALLOW_COPY_AND_ASSIGN(CallDoStuffOnThread);
-};
-
-// Deletes NonThreadSafeClass on a different thread.
-class DeleteNonThreadSafeClassOnThread : public SimpleThread {
- public:
-  explicit DeleteNonThreadSafeClassOnThread(
-      NonThreadSafeClass* non_thread_safe_class)
-      : SimpleThread("delete_non_thread_safe_class_on_thread"),
-        non_thread_safe_class_(non_thread_safe_class) {
-  }
-
-  void Run() override { non_thread_safe_class_.reset(); }
-
- private:
-  std::unique_ptr<NonThreadSafeClass> non_thread_safe_class_;
-
-  DISALLOW_COPY_AND_ASSIGN(DeleteNonThreadSafeClassOnThread);
-};
-
-}  // namespace
-
-TEST(NonThreadSafeTest, CallsAllowedOnSameThread) {
-  std::unique_ptr<NonThreadSafeClass> non_thread_safe_class(
-      new NonThreadSafeClass);
-
-  // Verify that DoStuff doesn't assert.
-  non_thread_safe_class->DoStuff();
-
-  // Verify that the destructor doesn't assert.
-  non_thread_safe_class.reset();
-}
-
-TEST(NonThreadSafeTest, DetachThenDestructOnDifferentThread) {
-  std::unique_ptr<NonThreadSafeClass> non_thread_safe_class(
-      new NonThreadSafeClass);
-
-  // Verify that the destructor doesn't assert when called on a different thread
-  // after a detach.
-  non_thread_safe_class->DetachFromThread();
-  DeleteNonThreadSafeClassOnThread delete_on_thread(
-      non_thread_safe_class.release());
-
-  delete_on_thread.Start();
-  delete_on_thread.Join();
-}
-
-void NonThreadSafeClass::MethodOnDifferentThreadImpl() {
-  std::unique_ptr<NonThreadSafeClass> non_thread_safe_class(
-      new NonThreadSafeClass);
-
-  // Verify that DoStuff asserts in debug builds only when called
-  // on a different thread.
-  CallDoStuffOnThread call_on_thread(non_thread_safe_class.get());
-
-  call_on_thread.Start();
-  call_on_thread.Join();
-}
-
-#if DCHECK_IS_ON()
-TEST(NonThreadSafeDeathTest, MethodNotAllowedOnDifferentThreadInDebug) {
-  ::testing::FLAGS_gtest_death_test_style = "threadsafe";
-  ASSERT_DCHECK_DEATH({ NonThreadSafeClass::MethodOnDifferentThreadImpl(); });
-}
-#else
-TEST(NonThreadSafeTest, MethodAllowedOnDifferentThreadInRelease) {
-  NonThreadSafeClass::MethodOnDifferentThreadImpl();
-}
-#endif  // DCHECK_IS_ON()
-
-void NonThreadSafeClass::DestructorOnDifferentThreadImpl() {
-  std::unique_ptr<NonThreadSafeClass> non_thread_safe_class(
-      new NonThreadSafeClass);
-
-  // Verify that the destructor asserts in debug builds only
-  // when called on a different thread.
-  DeleteNonThreadSafeClassOnThread delete_on_thread(
-      non_thread_safe_class.release());
-
-  delete_on_thread.Start();
-  delete_on_thread.Join();
-}
-
-#if DCHECK_IS_ON()
-TEST(NonThreadSafeDeathTest, DestructorNotAllowedOnDifferentThreadInDebug) {
-  ::testing::FLAGS_gtest_death_test_style = "threadsafe";
-  ASSERT_DCHECK_DEATH(
-      { NonThreadSafeClass::DestructorOnDifferentThreadImpl(); });
-}
-#else
-TEST(NonThreadSafeTest, DestructorAllowedOnDifferentThreadInRelease) {
-  NonThreadSafeClass::DestructorOnDifferentThreadImpl();
-}
-#endif  // DCHECK_IS_ON()
-
-}  // namespace base