Allow muted third-party autoplay with -ormuted experiment option.

third_party/WebKit/Source/core/html/AutoplayExperimentTest.cpp

Index: third_party/WebKit/Source/core/html/AutoplayExperimentTest.cpp
diff --git a/third_party/WebKit/Source/core/html/AutoplayExperimentTest.cpp b/third_party/WebKit/Source/core/html/AutoplayExperimentTest.cpp
index 115567b7c682c3231d1b03a413184858f910608c..a96605af854d6438ea66134694c08532bfc493b9 100644
--- a/third_party/WebKit/Source/core/html/AutoplayExperimentTest.cpp
+++ b/third_party/WebKit/Source/core/html/AutoplayExperimentTest.cpp
@@ -83,6 +83,7 @@ public:
     MOCK_CONST_METHOD0(muted, bool());
     MOCK_METHOD1(setMuted, void(bool));
     MOCK_METHOD0(playInternal, void());
+    MOCK_METHOD0(pauseInternal, void());
     MOCK_CONST_METHOD0(isLockedPendingUserGesture, bool());
     MOCK_METHOD0(unlockUserGesture, void());
     MOCK_METHOD1(recordAutoplayMetric, void(AutoplayMetrics));
@@ -474,4 +475,32 @@ TEST_F(AutoplayExperimentTest, PlayTwiceIsIgnored)
     m_helper->playMethodCalled();
 }
 
+TEST_F(AutoplayExperimentTest, CrossOriginMutedTests)
+{
+    setInterface(new NiceMock<MockAutoplayClient>("enabled-forvideo-ifsameorigin-ormuted", MockAutoplayClient::Video));
+    ON_CALL(*m_client, isCrossOrigin()).WillByDefault(Return(true));
+
+    // Cross-orgin unmuted content should be eligible.
+    setIsMuted(true);
+    EXPECT_TRUE(isEligible());
+
+    // Cross-origin muted content should not be eligible.
+    setIsMuted(false);
+    EXPECT_FALSE(isEligible());
+
+    // Start playback.
+    EXPECT_CALL(*m_client, recordAutoplayMetric(AutoplayMediaFound))
+        .Times(1);
+    m_helper->becameReadyToPlay();
+    ON_CALL(*m_client, paused()).WillByDefault(Return(false));
+    setIsMuted(true);
+    m_helper->mutedChanged();
+
+    // Verify that unmuting pauses playback.
+    setIsMuted(false);
+    EXPECT_CALL(*m_client, pauseInternal())
+        .Times(1);
+    m_helper->mutedChanged();
+}
+
 }