Refactor Timer classes in preparation for landing FrameTimers.

third_party/WebKit/Source/core/layout/ImageQualityControllerTest.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/layout/ImageQualityController.h"
 
 #include "core/layout/LayoutImage.h"
 #include "core/layout/LayoutTestHelper.h"
 #include "platform/graphics/GraphicsContext.h"
 #include "platform/graphics/paint/PaintController.h"
 #include "testing/gtest/include/gtest/gtest.h"
+#include "wtf/PtrUtil.h"
 #include <memory>
 
 namespace blink {
 
 class ImageQualityControllerTest : public RenderingTest {
 protected:
     ImageQualityController* controller() { return m_controller; }
 
 private:
     void SetUp() override
@@ skipping 112 matching lines @@
     }
     bool runsTasksOnCurrentThread() override { return true; }
     std::unique_ptr<WebTaskRunner> clone() override { return nullptr; }
     double virtualTimeSeconds() const override { return 0.0; }
     double monotonicallyIncreasingVirtualTimeSeconds() const override { return m_time; }
 
     double m_time;
     Task* m_currentTask;
 };
 
-class MockTimer : public Timer<ImageQualityController> {
-    typedef void (ImageQualityController::*TimerFiredFunction)(Timer*);
+class MockTimer : public TaskRunnerTimer<ImageQualityController> {
 public:
+    using TimerFiredFunction = typename TaskRunnerTimer<ImageQualityController>::TimerFiredFunction;
+
     MockTimer(ImageQualityController* o, TimerFiredFunction f)
-    : Timer<ImageQualityController>(o, f, &m_taskRunner)
+        : TaskRunnerTimer(&m_taskRunner, o, f)
     {
     }
 
     void fire()
     {
-        this->Timer<ImageQualityController>::fired();
+        fired();
         stop();
     }
 
     void setTime(double newTime)
     {
         m_taskRunner.setTime(newTime);
     }
 
 private:
     MockTaskRunner m_taskRunner;
 };
 
 TEST_F(ImageQualityControllerTest, LowQualityFilterForResizingImage)
 {
     MockTimer* mockTimer = new MockTimer(controller(), &ImageQualityController::highQualityRepaintTimerFired);
-    controller()->setTimer(mockTimer);
+    controller()->setTimer(wrapUnique(mockTimer));
     setBodyInnerHTML("<img src='myimage'></img>");
     LayoutImage* img = toLayoutImage(document().body()->firstChild()->layoutObject());
 
     RefPtr<TestImageLowQuality> testImage = adoptRef(new TestImageLowQuality);
     std::unique_ptr<PaintController> paintController = PaintController::create();
     GraphicsContext context(*paintController);
 
     // Paint once. This will kick off a timer to see if we resize it during that timer's execution.
     EXPECT_EQ(InterpolationMedium, controller()->chooseInterpolationQuality(*img, testImage.get(), testImage.get(), LayoutSize(2, 2)));
 
     // Go into low-quality mode now that the size changed.
     EXPECT_EQ(InterpolationLow, controller()->chooseInterpolationQuality(*img, testImage.get(), testImage.get(), LayoutSize(3, 3)));
 
     // Stay in low-quality mode since the size changed again.
     EXPECT_EQ(InterpolationLow, controller()->chooseInterpolationQuality(*img, testImage.get(), testImage.get(), LayoutSize(4, 4)));
 
     mockTimer->fire();
     // The timer fired before painting at another size, so this doesn't count as animation. Therefore not painting at low quality.
     EXPECT_EQ(InterpolationMedium, controller()->chooseInterpolationQuality(*img, testImage.get(), testImage.get(), LayoutSize(4, 4)));
 }
 
 TEST_F(ImageQualityControllerTest, MediumQualityFilterForNotAnimatedWhileAnotherAnimates)
 {
     MockTimer* mockTimer = new MockTimer(controller(), &ImageQualityController::highQualityRepaintTimerFired);
-    controller()->setTimer(mockTimer);
+    controller()->setTimer(wrapUnique(mockTimer));
     setBodyInnerHTML("<img id='myAnimatingImage' src='myimage'></img> <img id='myNonAnimatingImage' src='myimage2'></img>");
     LayoutImage* animatingImage = toLayoutImage(document().getElementById("myAnimatingImage")->layoutObject());
     LayoutImage* nonAnimatingImage = toLayoutImage(document().getElementById("myNonAnimatingImage")->layoutObject());
 
     RefPtr<TestImageLowQuality> testImage = adoptRef(new TestImageLowQuality);
     std::unique_ptr<PaintController> paintController = PaintController::create();
     GraphicsContext context(*paintController);
 
     // Paint once. This will kick off a timer to see if we resize it during that timer's execution.
     EXPECT_EQ(InterpolationMedium, controller()->chooseInterpolationQuality(*animatingImage, testImage.get(), testImage.get(), LayoutSize(2, 2)));
 
     // Go into low-quality mode now that the size changed.
     EXPECT_EQ(InterpolationLow, controller()->chooseInterpolationQuality(*animatingImage, testImage.get(), testImage.get(), LayoutSize(3, 3)));
 
     // The non-animating image receives a medium-quality filter, even though the other one is animating.
     EXPECT_EQ(InterpolationMedium, controller()->chooseInterpolationQuality(*nonAnimatingImage, testImage.get(), testImage.get(), LayoutSize(4, 4)));
 
     // Now the second image has animated, so it also gets painted with a low-quality filter.
     EXPECT_EQ(InterpolationLow, controller()->chooseInterpolationQuality(*nonAnimatingImage, testImage.get(), testImage.get(), LayoutSize(3, 3)));
 
     mockTimer->fire();
     // The timer fired before painting at another size, so this doesn't count as animation. Therefore not painting at low quality for any image.
     EXPECT_EQ(InterpolationMedium, controller()->chooseInterpolationQuality(*animatingImage, testImage.get(), testImage.get(), LayoutSize(4, 4)));
     EXPECT_EQ(InterpolationMedium, controller()->chooseInterpolationQuality(*nonAnimatingImage, testImage.get(), testImage.get(), LayoutSize(4, 4)));
 }
 
 TEST_F(ImageQualityControllerTest, DontKickTheAnimationTimerWhenPaintingAtTheSameSize)
 {
     MockTimer* mockTimer = new MockTimer(controller(), &ImageQualityController::highQualityRepaintTimerFired);
-    controller()->setTimer(mockTimer);
+    controller()->setTimer(wrapUnique(mockTimer));
     setBodyInnerHTML("<img src='myimage'></img>");
     LayoutImage* img = toLayoutImage(document().body()->firstChild()->layoutObject());
 
     RefPtr<TestImageLowQuality> testImage = adoptRef(new TestImageLowQuality);
 
     // Paint once. This will kick off a timer to see if we resize it during that timer's execution.
     EXPECT_EQ(InterpolationMedium, controller()->chooseInterpolationQuality(*img, testImage.get(), testImage.get(), LayoutSize(2, 2)));
 
     // Go into low-quality mode now that the size changed.
     EXPECT_EQ(InterpolationLow, controller()->chooseInterpolationQuality(*img, testImage.get(), testImage.get(), LayoutSize(3, 3)));
 
     // Stay in low-quality mode since the size changed again.
     EXPECT_EQ(InterpolationLow, controller()->chooseInterpolationQuality(*img, testImage.get(), testImage.get(), LayoutSize(4, 4)));
 
     mockTimer->stop();
     EXPECT_FALSE(mockTimer->isActive());
     // Painted at the same size, so even though timer is still executing, don't go to low quality.
     EXPECT_EQ(InterpolationLow, controller()->chooseInterpolationQuality(*img, testImage.get(), testImage.get(), LayoutSize(4, 4)));
     // Check that the timer was not kicked. It should not have been, since the image was painted at the same size as last time.
     EXPECT_FALSE(mockTimer->isActive());
 }
 
 TEST_F(ImageQualityControllerTest, DontRestartTimerUnlessAdvanced)
 {
     MockTimer* mockTimer = new MockTimer(controller(), &ImageQualityController::highQualityRepaintTimerFired);
-    controller()->setTimer(mockTimer);
+    controller()->setTimer(wrapUnique(mockTimer));
     setBodyInnerHTML("<img src='myimage'></img>");
     LayoutImage* img = toLayoutImage(document().body()->firstChild()->layoutObject());
 
     RefPtr<TestImageLowQuality> testImage = adoptRef(new TestImageLowQuality);
 
     // Paint once. This will kick off a timer to see if we resize it during that timer's execution.
     mockTimer->setTime(0.1);
     EXPECT_FALSE(controller()->shouldPaintAtLowQuality(*img, testImage.get(), testImage.get(), LayoutSize(2, 2), 0.1));
     EXPECT_EQ(ImageQualityController::cLowQualityTimeThreshold, mockTimer->nextFireInterval());
 
     // Go into low-quality mode now that the size changed.
     double nextTime = 0.1 + ImageQualityController::cTimerRestartThreshold / 2.0;
     mockTimer->setTime(nextTime);
     EXPECT_EQ(true, controller()->shouldPaintAtLowQuality(*img, testImage.get(), testImage.get(), LayoutSize(3, 3), nextTime));
     // The fire interval has decreased, because we have not restarted the timer.
     EXPECT_EQ(ImageQualityController::cLowQualityTimeThreshold - ImageQualityController::cTimerRestartThreshold / 2.0, mockTimer->nextFireInterval());
 
     // This animation is far enough in the future to make the timer restart, since it is half over.
     nextTime = 0.1 + ImageQualityController::cTimerRestartThreshold + 0.01;
     EXPECT_EQ(true, controller()->shouldPaintAtLowQuality(*img, testImage.get(), testImage.get(), LayoutSize(4, 4), nextTime));
     // Now the timer has restarted, leading to a larger fire interval.
     EXPECT_EQ(ImageQualityController::cLowQualityTimeThreshold, mockTimer->nextFireInterval());
 }
 
 #endif
 
 } // namespace blink