Add MediaControlsImplTestWithMockScheduler.

third_party/WebKit/Source/modules/media_controls/MediaControlsImplTest.cpp

 // 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 "modules/media_controls/MediaControlsImpl.h"
 
 #include <limits>
 #include <memory>
 #include "core/HTMLNames.h"
 #include "core/css/StylePropertySet.h"
@@ skipping 773 matching lines @@
   GetHistogramTester().ExpectTotalCount(
       "Media.Timeline.DragGestureDuration.128_255", 1);
   GetHistogramTester().ExpectUniqueSample("Media.Timeline.DragPercent.128_255",
                                           8 /* (-35.0%, -30.0%] */, 1);
   GetHistogramTester().ExpectUniqueSample(
       "Media.Timeline.DragSumAbsTimeDelta.128_255", 17 /* [8m, 15m) */, 1);
   GetHistogramTester().ExpectUniqueSample(
       "Media.Timeline.DragTimeDelta.128_255", 9 /* (-4m, -2m] */, 1);
 }
 
-TEST_F(MediaControlsImplTest, ControlsRemainVisibleDuringKeyboardInteraction) {
+namespace {
+
+class MediaControlsImplTestWithMockScheduler : public MediaControlsImplTest {
+ protected:
+  void SetUp() override {
+    // DocumentParserTiming has DCHECKS to make sure time > 0.0.
+    platform_->AdvanceClockSeconds(1);
+
+    MediaControlsImplTest::SetUp();
+  }
+
   ScopedTestingPlatformSupport<TestingPlatformSupportWithMockScheduler>
-      platform;
+      platform_;
+};
 
-  // DocumentParserTiming has DCHECKS to make sure time > 0.0.
-  platform->AdvanceClockSeconds(1);
+}  // namespace
 
-  // Need to reinitialize page since we changed the platform.
-  InitializePage();
+TEST_F(MediaControlsImplTestWithMockScheduler,
+       ControlsRemainVisibleDuringKeyboardInteraction) {
   EnsureSizing();
 
   Element* panel = MediaControls().PanelElement();
 
   MediaControls().MediaElement().SetBooleanAttribute(HTMLNames::controlsAttr,
                                                      true);
   MediaControls().MediaElement().SetSrc("http://example.com");
   MediaControls().MediaElement().Play();
 
   // Controls start out visible.
   EXPECT_TRUE(IsElementVisible(*panel));
 
   // Tabbing between controls prevents controls from hiding.
-  platform->RunForPeriodSeconds(2);
+  platform_->RunForPeriodSeconds(2);
   MediaControls().DispatchEvent(Event::Create("focusin"));
-  platform->RunForPeriodSeconds(2);
+  platform_->RunForPeriodSeconds(2);
   EXPECT_TRUE(IsElementVisible(*panel));
 
   // Seeking on the timeline or volume bar prevents controls from hiding.
   MediaControls().DispatchEvent(Event::Create("input"));
-  platform->RunForPeriodSeconds(2);
+  platform_->RunForPeriodSeconds(2);
   EXPECT_TRUE(IsElementVisible(*panel));
 
   // Pressing a key prevents controls from hiding.
   MediaControls().PanelElement()->DispatchEvent(Event::Create("keypress"));
-  platform->RunForPeriodSeconds(2);
+  platform_->RunForPeriodSeconds(2);
   EXPECT_TRUE(IsElementVisible(*panel));
 
   // Once user interaction stops, controls can hide.
-  platform->RunForPeriodSeconds(2);
+  platform_->RunForPeriodSeconds(2);
   EXPECT_FALSE(IsElementVisible(*panel));
 }
 
 TEST_F(MediaControlsImplTest,
        RemovingFromDocumentRemovesListenersAndCallbacks) {
   auto page_holder = DummyPageHolder::Create();
 
   HTMLMediaElement* element =
       HTMLVideoElement::Create(page_holder->GetDocument());
   element->SetBooleanAttribute(HTMLNames::controlsAttr, true);
@@ skipping 41 matching lines @@
   {
     Persistent<HTMLMediaElement> video_holder = element;
     page_holder->GetDocument().body()->RemoveChild(element);
     page_holder->GetDocument().body()->AppendChild(video_holder.Get());
     EXPECT_TRUE(remote_playback->HasEventListeners());
     EXPECT_TRUE(HasAvailabilityCallbacks(remote_playback));
   }
 }
 
 }  // namespace blink