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

third_party/WebKit/Source/platform/scroll/ScrollAnimatorTest.cpp

 /*
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 21 matching lines @@
 #include "platform/scheduler/child/web_scheduler.h"
 #include "platform/scroll/ScrollAnimatorBase.h"
 #include "platform/scroll/ScrollableArea.h"
 #include "public/platform/Platform.h"
 #include "public/platform/WebThread.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace blink {
 
-using testing::AtLeast;
-using testing::Return;
-using testing::_;
+using ::testing::AtLeast;
+using ::testing::Return;
+using ::testing::_;
 
 static double g_mocked_time = 0.0;
 
 static double GetMockedTime() {
   return g_mocked_time;
 }
 
 namespace {
 
 class MockScrollableArea : public GarbageCollectedFinalized<MockScrollableArea>,
@@ skipping 609 matching lines @@
       ScrollAnimatorCompositorCoordinator::RunState::kPostAnimationCleanup);
   EXPECT_EQ(ScrollOffset(110, 90), animator->DesiredTargetOffset());
 
   Reset(*animator);
 
   // Forced GC in order to finalize objects depending on the mock object.
   ThreadState::Current()->CollectAllGarbage();
 }
 
 }  // namespace blink