Be explicit about namespace testing to not mix it with blink::testing

third_party/WebKit/Source/platform/scheduler/base/work_queue_unittest.cc

 // Copyright 2015 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 "platform/scheduler/base/work_queue.h"
 
 #include <stddef.h>
 
 #include "base/bind.h"
 #include "base/memory/ptr_util.h"
 #include "platform/scheduler/base/real_time_domain.h"
 #include "platform/scheduler/base/task_queue_impl.h"
 #include "platform/scheduler/base/work_queue_sets.h"
 #include "testing/gmock/include/gmock/gmock.h"
 
 namespace blink {
 namespace scheduler {
 namespace internal {
 namespace {
 void NopTask() {}
 }
 
-class WorkQueueTest : public testing::Test {
+class WorkQueueTest : public ::testing::Test {
  public:
   void SetUp() override {
     time_domain_.reset(new RealTimeDomain());
     task_queue_ = make_scoped_refptr(
         new TaskQueueImpl(nullptr, time_domain_.get(),
                           TaskQueue::Spec(TaskQueue::QueueType::TEST)));
 
     work_queue_.reset(new WorkQueue(task_queue_.get(), "test",
                                     WorkQueue::QueueType::IMMEDIATE));
     work_queue_sets_.reset(new WorkQueueSets(1, "test"));
@@ skipping 331 matching lines @@
   EXPECT_FALSE(work_queue_->InsertFence(1));
   EXPECT_TRUE(work_queue_->BlockedByFence());
 
   EnqueueOrder enqueue_order;
   EXPECT_FALSE(work_queue_->GetFrontTaskEnqueueOrder(&enqueue_order));
 }
 
 }  // namespace internal
 }  // namespace scheduler
 }  // namespace blink