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

third_party/WebKit/Source/core/animation/TimingInputTest.cpp

 // Copyright 2014 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 "core/animation/TimingInput.h"
 
 #include "bindings/core/v8/V8BindingForTesting.h"
 #include "bindings/core/v8/V8KeyframeAnimationOptions.h"
 #include "bindings/core/v8/V8KeyframeEffectOptions.h"
 #include "core/animation/AnimationEffectTiming.h"
 #include "core/animation/AnimationTestHelper.h"
 #include "core/testing/DummyPageHolder.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "v8/include/v8.h"
 
 namespace blink {
 
-class AnimationTimingInputTest : public testing::Test {
+class AnimationTimingInputTest : public ::testing::Test {
  public:
   Timing ApplyTimingInputNumber(v8::Isolate*,
                                 String timing_property,
                                 double timing_property_value,
                                 bool& timing_conversion_success,
                                 bool is_keyframeeffectoptions = true);
   Timing ApplyTimingInputString(v8::Isolate*,
                                 String timing_property,
                                 String timing_property_value,
                                 bool& timing_conversion_success,
@@ skipping 436 matching lines @@
   EXPECT_EQ(control_timing.fill_mode, updated_timing.fill_mode);
   EXPECT_EQ(control_timing.iteration_start, updated_timing.iteration_start);
   EXPECT_EQ(control_timing.iteration_count, updated_timing.iteration_count);
   EXPECT_TRUE(std::isnan(updated_timing.iteration_duration));
   EXPECT_EQ(control_timing.playback_rate, updated_timing.playback_rate);
   EXPECT_EQ(control_timing.direction, updated_timing.direction);
   EXPECT_EQ(*control_timing.timing_function, *updated_timing.timing_function);
 }
 
 }  // namespace blink