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

third_party/WebKit/Source/platform/scheduler/base/work_queue_sets_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_sets.h"
 
 #include <stddef.h>
 
 #include "base/memory/ptr_util.h"
 #include "platform/scheduler/base/work_queue.h"
 #include "testing/gmock/include/gmock/gmock.h"
 
 namespace blink {
 namespace scheduler {
 class TimeDomain;
 
 namespace internal {
 
-class WorkQueueSetsTest : public testing::Test {
+class WorkQueueSetsTest : public ::testing::Test {
  public:
   void SetUp() override {
     work_queue_sets_.reset(new WorkQueueSets(kNumSets, "test"));
   }
 
   void TearDown() override {
     for (std::unique_ptr<WorkQueue>& work_queue : work_queues_) {
       if (work_queue->work_queue_sets())
         work_queue_sets_->RemoveQueue(work_queue.get());
     }
@@ skipping 258 matching lines @@
 
   queue1->InsertFence(1);
 
   EXPECT_TRUE(work_queue_sets_->GetOldestQueueInSet(set, &selected_work_queue));
   EXPECT_EQ(selected_work_queue, queue2);
 }
 
 }  // namespace internal
 }  // namespace scheduler
 }  // namespace blink