[SPv2] Use foreign layer support to enable composited video.

third_party/WebKit/Source/core/paint/VideoPainterTest.cpp

+// Copyright 2016 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/paint/VideoPainter.h"
+
+#include "core/frame/FrameView.h"
+#include "core/frame/Settings.h"
+#include "core/html/HTMLMediaElement.h"
+#include "core/loader/EmptyClients.h"
+#include "core/testing/DummyPageHolder.h"
+#include "platform/graphics/compositing/PaintArtifactCompositor.h"
+#include "platform/testing/UnitTestHelpers.h"
+#include "platform/testing/WebLayerTreeViewImplForTesting.h"
+#include "public/platform/Platform.h"
+#include "public/platform/WebCompositorSupport.h"
+#include "public/platform/WebLayer.h"
+#include "public/platform/WebMediaPlayer.h"
+#include "public/platform/WebSize.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+// Integration tests of video painting code (in SPv2 mode).
+
+namespace blink {
+namespace {
+
+class StubChromeClient : public EmptyChromeClient {
+public:
+    StubChromeClient(WebLayerTreeViewImplForTesting::LayerListPolicy layerListPolicy)
+        : m_layerTreeView(layerListPolicy)
+    {
+        m_layerTreeView.setRootLayer(*m_paintArtifactCompositor.getWebLayer());
+    }
+
+    bool hasLayer(const WebLayer& layer) { return m_layerTreeView.hasLayer(layer); }
+
+    // ChromeClient
+    void didPaint(const PaintArtifact& artifact)
+    {
+        m_paintArtifactCompositor.update(artifact);
+    }
+
+private:
+    WebLayerTreeViewImplForTesting m_layerTreeView;
+    PaintArtifactCompositor m_paintArtifactCompositor;
+};
+
+class StubWebMediaPlayer : public WebMediaPlayer {
+public:
+    StubWebMediaPlayer(WebMediaPlayerClient* client)
+        : m_client(client) {}
+
+    const WebLayer* getWebLayer() { return m_webLayer.get(); }
+
+    // WebMediaPlayer
+    void load(LoadType, const WebMediaPlayerSource&, CORSMode)
+    {
+        m_networkState = NetworkStateLoaded;
+        m_client->networkStateChanged();
+        m_readyState = ReadyStateHaveEnoughData;
+        m_client->readyStateChanged();
+        m_webLayer = wrapUnique(Platform::current()->compositorSupport()->createLayer());
+        m_client->setWebLayer(m_webLayer.get());
+    }
+    void play() override {}
+    void pause() override {}
+    bool supportsSave() const override { return false; }
+    void seek(double seconds) override {}
+    void setRate(double) override {}
+    void setVolume(double) override {}
+    WebTimeRanges buffered() const override { return WebTimeRanges(); }
+    WebTimeRanges seekable() const override { return WebTimeRanges(); }
+    void setSinkId(const WebString& sinkId, const WebSecurityOrigin&, WebSetSinkIdCallbacks*) override {}
+    bool hasVideo() const override { return false; }
+    bool hasAudio() const override { return false; }
+    WebSize naturalSize() const override { return WebSize(0, 0); }
+    bool paused() const override { return false; }
+    bool seeking() const override { return false; }
+    double duration() const override { return 0.0; }
+    double currentTime() const override { return 0.0; }
+    NetworkState getNetworkState() const override { return m_networkState; }
+    ReadyState getReadyState() const override { return m_readyState; }
+    WebString getErrorMessage() override { return WebString(); }
+    bool didLoadingProgress() override { return false; }
+    bool hasSingleSecurityOrigin() const override { return true; }
+    bool didPassCORSAccessCheck() const override { return true; }
+    double mediaTimeForTimeValue(double timeValue) const override { return timeValue; }
+    unsigned decodedFrameCount() const override { return 0; }
+    unsigned droppedFrameCount() const override { return 0; }
+    size_t audioDecodedByteCount() const override { return 0; }
+    size_t videoDecodedByteCount() const override { return 0; }
+    void paint(WebCanvas*, const WebRect&, unsigned char alpha, SkXfermode::Mode) override {}
+
+private:
+    WebMediaPlayerClient* m_client;
+    std::unique_ptr<WebLayer> m_webLayer;
+    NetworkState m_networkState = NetworkStateEmpty;
+    ReadyState m_readyState = ReadyStateHaveNothing;
+};
+
+class StubFrameLoaderClient : public EmptyFrameLoaderClient {
+public:
+    // FrameLoaderClient
+    std::unique_ptr<WebMediaPlayer> createWebMediaPlayer(HTMLMediaElement&, const WebMediaPlayerSource&, WebMediaPlayerClient* client) override
+    {
+        return wrapUnique(new StubWebMediaPlayer(client));
+    }
+};
+
+class VideoPainterTestForSPv2 : public ::testing::TestWithParam<WebLayerTreeViewImplForTesting::LayerListPolicy> {
+protected:
+    void SetUp() override
+    {
+        RuntimeEnabledFeatures::setSlimmingPaintV2Enabled(true);
+        m_chromeClient = new StubChromeClient(GetParam());
+        m_frameLoaderClient = new StubFrameLoaderClient;
+        Page::PageClients clients;
+        fillWithEmptyClients(clients);
+        clients.chromeClient = m_chromeClient.get();
+        m_pageHolder = DummyPageHolder::create(IntSize(800, 600), &clients, m_frameLoaderClient.get(),
+            [](Settings& settings) { settings.setAcceleratedCompositingEnabled(true); });
+        document().view()->setParentVisible(true);
+        document().view()->setSelfVisible(true);
+        document().setURL(KURL(KURL(), "https://example.com/"));
+    }
+
+    void TearDown() override
+    {
+        m_featuresBackup.restore();
+    }
+
+    Document& document() { return m_pageHolder->document(); }
+    bool hasLayerAttached(const WebLayer& layer) { return m_chromeClient->hasLayer(layer); }
+
+private:
+    RuntimeEnabledFeatures::Backup m_featuresBackup;
+    Persistent<StubChromeClient> m_chromeClient;
+    Persistent<StubFrameLoaderClient> m_frameLoaderClient;
+    std::unique_ptr<DummyPageHolder> m_pageHolder;
+};
+
+INSTANTIATE_TEST_CASE_P(, VideoPainterTestForSPv2, ::testing::Values(
+    WebLayerTreeViewImplForTesting::DontUseLayerLists,
+    WebLayerTreeViewImplForTesting::UseLayerLists));
+
+TEST_P(VideoPainterTestForSPv2, VideoLayerAppearsInLayerTree)
+{
+    // Insert a <video> and allow it to begin loading.
+    document().body()->setInnerHTML("<video width=300 height=200 src=test.ogv>", ASSERT_NO_EXCEPTION);
+    testing::runPendingTasks();
+
+    // Force the page to paint.
+    document().view()->updateAllLifecyclePhases();
+
+    // Fetch the layer associated with the <video>, and check that it was
+    // correctly configured in the layer tree.
+    HTMLMediaElement* element = toHTMLMediaElement(document().body()->firstChild());
+    StubWebMediaPlayer* player = static_cast<StubWebMediaPlayer*>(element->webMediaPlayer());
+    const WebLayer* layer = player->getWebLayer();
+    ASSERT_TRUE(layer);
+    EXPECT_TRUE(hasLayerAttached(*layer));
+    EXPECT_EQ(WebSize(300, 200), layer->bounds());
+}
+
+} // namespace
+} // namespace blink