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

third_party/WebKit/Source/platform/scheduler/child/worker_scheduler_impl_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/child/worker_scheduler_impl.h"
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "base/single_thread_task_runner.h"
 #include "base/strings/stringprintf.h"
 #include "base/test/simple_test_tick_clock.h"
 #include "cc/test/ordered_simple_task_runner.h"
 #include "platform/scheduler/base/test_time_source.h"
 #include "platform/scheduler/child/scheduler_tqm_delegate_for_test.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
-using testing::ElementsAreArray;
+using ::testing::ElementsAreArray;
 
 namespace blink {
 namespace scheduler {
 
 namespace {
 void NopTask() {}
 
 int TimeTicksToIntMs(const base::TimeTicks& time) {
   return static_cast<int>((time - base::TimeTicks()).InMilliseconds());
 }
@@ skipping 53 matching lines @@
       timeline_->push_back(base::StringPrintf(
           "IsNotQuiescent @ %d", TimeTicksToIntMs(clock_->NowTicks())));
     }
     WorkerSchedulerImpl::IsNotQuiescent();
   }
 
   base::SimpleTestTickClock* clock_;    // NOT OWNED
   std::vector<std::string>* timeline_;  // NOT OWNED
 };
 
-class WorkerSchedulerImplTest : public testing::Test {
+class WorkerSchedulerImplTest : public ::testing::Test {
  public:
   WorkerSchedulerImplTest()
       : clock_(new base::SimpleTestTickClock()),
         mock_task_runner_(new cc::OrderedSimpleTaskRunner(clock_.get(), true)),
         main_task_runner_(SchedulerTqmDelegateForTest::Create(
             mock_task_runner_,
             base::WrapUnique(new TestTimeSource(clock_.get())))),
         scheduler_(
             new WorkerSchedulerImplForTest(main_task_runner_, clock_.get())),
         timeline_(nullptr) {
@@ skipping 79 matching lines @@
 };
 
 TEST_F(WorkerSchedulerImplTest, TestPostDefaultTask) {
   Init();
 
   std::vector<std::string> run_order;
   PostTestTasks(&run_order, "D1 D2 D3 D4");
 
   RunUntilIdle();
   EXPECT_THAT(run_order,
-              testing::ElementsAre(std::string("D1"), std::string("D2"),
-                                   std::string("D3"), std::string("D4")));
+              ::testing::ElementsAre(std::string("D1"), std::string("D2"),
+                                     std::string("D3"), std::string("D4")));
 }
 
 TEST_F(WorkerSchedulerImplTest, TestPostIdleTask) {
   Init();
 
   std::vector<std::string> run_order;
   PostTestTasks(&run_order, "I1");
 
   RunUntilIdle();
-  EXPECT_THAT(run_order, testing::ElementsAre(std::string("I1")));
+  EXPECT_THAT(run_order, ::testing::ElementsAre(std::string("I1")));
 }
 
 TEST_F(WorkerSchedulerImplTest, TestPostDefaultAndIdleTasks) {
   Init();
 
   std::vector<std::string> run_order;
   PostTestTasks(&run_order, "I1 D2 D3 D4");
 
   RunUntilIdle();
   EXPECT_THAT(run_order,
-              testing::ElementsAre(std::string("D2"), std::string("D3"),
-                                   std::string("D4"), std::string("I1")));
+              ::testing::ElementsAre(std::string("D2"), std::string("D3"),
+                                     std::string("D4"), std::string("I1")));
 }
 
 TEST_F(WorkerSchedulerImplTest, TestPostDefaultDelayedAndIdleTasks) {
   Init();
 
   std::vector<std::string> run_order;
   PostTestTasks(&run_order, "I1 D2 D3 D4");
 
   default_task_runner_->PostDelayedTask(
       FROM_HERE, base::Bind(&AppendToVectorTestTask, &run_order, "DELAYED"),
       base::TimeDelta::FromMilliseconds(1000));
 
   RunUntilIdle();
   EXPECT_THAT(run_order,
-              testing::ElementsAre(std::string("D2"), std::string("D3"),
-                                   std::string("D4"), std::string("I1"),
-                                   std::string("DELAYED")));
+              ::testing::ElementsAre(std::string("D2"), std::string("D3"),
+                                     std::string("D4"), std::string("I1"),
+                                     std::string("DELAYED")));
 }
 
 TEST_F(WorkerSchedulerImplTest, TestIdleTaskWhenIsNotQuiescent) {
   std::vector<std::string> timeline;
   RecordTimelineEvents(&timeline);
   Init();
 
   timeline.push_back("Post default task");
   // Post a delayed task timed to occur mid way during the long idle period.
   default_task_runner_->PostTask(
@@ skipping 74 matching lines @@
 
   default_task_runner_->PostDelayedTask(
       FROM_HERE, base::Bind(&NopTask), base::TimeDelta::FromMilliseconds(1000));
   RunUntilIdle();
 
   std::vector<std::string> run_order;
   PostTestTasks(&run_order, "I1 I2 D3");
 
   RunUntilIdle();
   EXPECT_THAT(run_order,
-              testing::ElementsAre(std::string("D3"), std::string("I1"),
-                                   std::string("I2")));
+              ::testing::ElementsAre(std::string("D3"), std::string("I1"),
+                                     std::string("I2")));
 }
 
 void PostIdleTask(std::vector<std::string>* timeline,
                   base::SimpleTestTickClock* clock,
                   SingleThreadIdleTaskRunner* idle_task_runner) {
   timeline->push_back(base::StringPrintf("run PostIdleTask @ %d",
                                          TimeTicksToIntMs(clock->NowTicks())));
 
   idle_task_runner->PostIdleTask(FROM_HERE,
                                  base::Bind(&TimelineIdleTestTask, timeline));
@@ skipping 54 matching lines @@
                                      "Post RecordTimelineTask",
                                      "RunUntilIdle begin @ 385",
                                      "run RecordTimelineTask @ 385",
                                      "RunUntilIdle end @ 385"};
 
   EXPECT_THAT(timeline, ElementsAreArray(expected_timeline));
 }
 
 }  // namespace scheduler
 }  // namespace blink