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

third_party/WebKit/Source/core/html/AutoplayExperimentTest.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 "core/dom/Document.h"
 #include "core/html/AutoplayExperimentHelper.h"
 #include "platform/UserGestureIndicator.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
@@ skipping 65 matching lines @@
 
     virtual ~MockAutoplayClient() {}
 
     MOCK_CONST_METHOD0(currentTime, double());
     MOCK_CONST_METHOD0(duration, double());
     MOCK_CONST_METHOD0(paused, bool());
     MOCK_CONST_METHOD0(ended, bool());
     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));
     MOCK_METHOD0(shouldAutoplay, bool());
     MOCK_CONST_METHOD0(isHTMLVideoElement, bool());
     MOCK_CONST_METHOD0(isHTMLAudioElement, bool());
     MOCK_METHOD0(isLegacyViewportType, bool());
     MOCK_CONST_METHOD0(pageVisibilityState, PageVisibilityState());
     MOCK_CONST_METHOD0(autoplayExperimentMode, String());
     MOCK_CONST_METHOD0(isCrossOrigin, bool());
@@ skipping 371 matching lines @@
     setInterface(new NiceMock<MockAutoplayClient>("enabled-forvideo", MockAutoplayClient::Video));
     setShouldAutoplay(false); // No autoplay attribute.
 
     EXPECT_CALL(*m_client, recordAutoplayMetric(AutoplayMediaFound))
         .Times(1);
     m_helper->playMethodCalled();
     ON_CALL(*m_client, paused()).WillByDefault(Return(false));
     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();
 }
+
+}