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Issue 2587913002: Rename activeDOMObjectsAreSuspended to isContextSuspended (Closed)
Patch Set: temp Created 3 years, 12 months ago
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1 <!DOCTYPE html> 1 <!DOCTYPE html>
2 <html> 2 <html>
3 <head> 3 <head>
4 <title>MediaKeySession lifetime after release()</title> 4 <title>MediaKeySession lifetime after release()</title>
5 <script src="encrypted-media-utils.js"></script> 5 <script src="encrypted-media-utils.js"></script>
6 <script src="../../resources/testharness.js"></script> 6 <script src="../../resources/testharness.js"></script>
7 <script src="../../resources/testharnessreport.js"></script> 7 <script src="../../resources/testharnessreport.js"></script>
8 </head> 8 </head>
9 <body> 9 <body>
10 <script> 10 <script>
11 // Since MediaKeySession (and MediaKeys) are ActiveDOMObjects, 11 // Since MediaKeySession (and MediaKeys) are SuspendableObjects,
12 // we can determine when they are garbage collected. 12 // we can determine when they are garbage collected.
13 // MediaKeySessions remain as long as: 13 // MediaKeySessions remain as long as:
14 // JavaScript has a reference to it 14 // JavaScript has a reference to it
15 // OR (MediaKeys is around 15 // OR (MediaKeys is around
16 // AND the session has not received a close() event) 16 // AND the session has not received a close() event)
17 async_test(function(test) 17 async_test(function(test)
18 { 18 {
19 var mediaKeys; 19 var mediaKeys;
20 var mediaKeySession1; 20 var mediaKeySession1;
21 var mediaKeySession2; 21 var mediaKeySession2;
22 var initDataType; 22 var initDataType;
23 var initData; 23 var initData;
24 var startingActiveDOMObjectCount = window.internals.activeDOMObj ectCount(document); 24 var startingSuspendableObjectCount = window.internals.suspendabl eObjectCount(document);
25 25
26 function numActiveDOMObjectsCreated() 26 function numSuspendableObjectsCreated()
27 { 27 {
28 return window.internals.activeDOMObjectCount(document) - sta rtingActiveDOMObjectCount; 28 return window.internals.suspendableObjectCount(document) - s tartingSuspendableObjectCount;
29 } 29 }
30 30
31 // Create 2 sessions. 31 // Create 2 sessions.
32 navigator.requestMediaKeySystemAccess('org.w3.clearkey', getSimp leConfiguration()).then(function(access) { 32 navigator.requestMediaKeySystemAccess('org.w3.clearkey', getSimp leConfiguration()).then(function(access) {
33 initDataType = access.getConfiguration().initDataTypes[0]; 33 initDataType = access.getConfiguration().initDataTypes[0];
34 initData = getInitData(initDataType); 34 initData = getInitData(initDataType);
35 return access.createMediaKeys(); 35 return access.createMediaKeys();
36 }).then(function(result) { 36 }).then(function(result) {
37 mediaKeys = result; 37 mediaKeys = result;
38 38
39 // Verify MediaKeys is an ActiveDOMObject. 39 // Verify MediaKeys is an SuspendableObject.
40 // In non-Oilpan, numActiveDOMObjectsCreate() == 1. 40 // In non-Oilpan, numSuspendableObjectsCreate() == 1.
41 // In Oilpan, numActiveDOMObjectsCreate() <= 4. 41 // In Oilpan, numSuspendableObjectsCreate() <= 4.
42 // (1 MediaKeys, 42 // (1 MediaKeys,
43 // 1 MediaKeysInitializer and 43 // 1 MediaKeysInitializer and
44 // 1 MediaKeySystemAccessInitializer (navigator.requestMedi aKeySystemAccess() use above), 44 // 1 MediaKeySystemAccessInitializer (navigator.requestMedi aKeySystemAccess() use above),
45 // 1 MediaKeySystemAccessInitializer (isInitDataSupported() (via getSupportedInitDataType()))) 45 // 1 MediaKeySystemAccessInitializer (isInitDataSupported() (via getSupportedInitDataType())))
46 assert_between_inclusive(numActiveDOMObjectsCreated(), 1, 4, 'MediaKeys.create()'); 46 assert_between_inclusive(numSuspendableObjectsCreated(), 1, 4, 'MediaKeys.create()');
47 47
48 mediaKeySession1 = mediaKeys.createSession(); 48 mediaKeySession1 = mediaKeys.createSession();
49 return mediaKeySession1.generateRequest(initDataType, initDa ta); 49 return mediaKeySession1.generateRequest(initDataType, initDa ta);
50 }).then(function() { 50 }).then(function() {
51 // Should be 1 MediaKeys + 1 MediaKeySession. 51 // Should be 1 MediaKeys + 1 MediaKeySession.
52 // In non-Oilpan, numActiveDOMObjectsCreate() == 2. 52 // In non-Oilpan, numSuspendableObjectsCreate() == 2.
53 // In Oilpan, numActiveDOMObjectsCreate() <= 6. 53 // In Oilpan, numSuspendableObjectsCreate() <= 6.
54 // (1 MediaKeys, 54 // (1 MediaKeys,
55 // 1 MediaKeysInitializer, 55 // 1 MediaKeysInitializer,
56 // 2 MediaKeySystemAccessInitializers, 56 // 2 MediaKeySystemAccessInitializers,
57 // 1 ContentDecryptionModuleResultPromise and 57 // 1 ContentDecryptionModuleResultPromise and
58 // 1 MediaKeySession). 58 // 1 MediaKeySession).
59 assert_between_inclusive(numActiveDOMObjectsCreated(), 2, 6, 'MediaKeys.createSession(1)'); 59 assert_between_inclusive(numSuspendableObjectsCreated(), 2, 6, 'MediaKeys.createSession(1)');
60 60
61 mediaKeySession2 = mediaKeys.createSession(); 61 mediaKeySession2 = mediaKeys.createSession();
62 return mediaKeySession2.generateRequest(initDataType, initDa ta); 62 return mediaKeySession2.generateRequest(initDataType, initDa ta);
63 }).then(function() { 63 }).then(function() {
64 // Should be 1 MediaKeys + 2 MediaKeySessions. 64 // Should be 1 MediaKeys + 2 MediaKeySessions.
65 // In non-Oilpan, numActiveDOMObjectsCreate() == 3. 65 // In non-Oilpan, numSuspendableObjectsCreate() == 3.
66 // In Oilpan, numActiveDOMObjectsCreate() <= 8. 66 // In Oilpan, numSuspendableObjectsCreate() <= 8.
67 // (1 MediaKeys, 67 // (1 MediaKeys,
68 // 1 MediaKeysInitializer, 68 // 1 MediaKeysInitializer,
69 // 2 MediaKeySystemAccessInitializers, 69 // 2 MediaKeySystemAccessInitializers,
70 // 2 ContentDecryptionModuleResultPromise and 70 // 2 ContentDecryptionModuleResultPromise and
71 // 2 MediaKeySession). 71 // 2 MediaKeySession).
72 assert_between_inclusive(numActiveDOMObjectsCreated(), 3, 8, 'mediaKeys.createSession(2)'); 72 assert_between_inclusive(numSuspendableObjectsCreated(), 3, 8, 'mediaKeys.createSession(2)');
73 73
74 // Close the sessions. Once completed, only the JS 74 // Close the sessions. Once completed, only the JS
75 // reference to them keeps them around. 75 // reference to them keeps them around.
76 return mediaKeySession1.close(); 76 return mediaKeySession1.close();
77 }).then(function(result) { 77 }).then(function(result) {
78 return mediaKeySession2.close(); 78 return mediaKeySession2.close();
79 }).then(function(result) { 79 }).then(function(result) {
80 // Since both sessions have been closed, dropping the 80 // Since both sessions have been closed, dropping the
81 // reference to them from JS will result in the session 81 // reference to them from JS will result in the session
82 // being garbage-collected. 82 // being garbage-collected.
83 // Should be 1 MediaKeys + 2 MediaKeySessions. 83 // Should be 1 MediaKeys + 2 MediaKeySessions.
84 // In non-Oilpan, numActiveDOMObjectsCreate() == 3. 84 // In non-Oilpan, numSuspendableObjectsCreate() == 3.
85 // In Oilpan, numActiveDOMObjectsCreate() <= 10. 85 // In Oilpan, numSuspendableObjectsCreate() <= 10.
86 // (1 MediaKeys, 86 // (1 MediaKeys,
87 // 1 MediaKeysInitializer, 87 // 1 MediaKeysInitializer,
88 // 2 MediaKeySystemAccessInitializers, 88 // 2 MediaKeySystemAccessInitializers,
89 // 4 ContentDecryptionModuleResultPromise and 89 // 4 ContentDecryptionModuleResultPromise and
90 // 2 MediaKeySession). 90 // 2 MediaKeySession).
91 assert_between_inclusive(numActiveDOMObjectsCreated(), 3, 10 , 'after close'); 91 assert_between_inclusive(numSuspendableObjectsCreated(), 3, 10, 'after close');
92 92
93 mediaKeySession1 = null; 93 mediaKeySession1 = null;
94 return createGCPromise(); 94 return createGCPromise();
95 }).then(function() { 95 }).then(function() {
96 // Only MediaKeys + mediaKeySession2 should remain. 96 // Only MediaKeys + mediaKeySession2 should remain.
97 // In non-Oilpan, there is also something from createGCPromi se(). 97 // In non-Oilpan, there is also something from createGCPromi se().
98 assert_between_inclusive(numActiveDOMObjectsCreated(), 2, 3, 'mediaKeySession1 not collected'); 98 assert_between_inclusive(numSuspendableObjectsCreated(), 2, 3, 'mediaKeySession1 not collected');
99 99
100 mediaKeySession2 = null; 100 mediaKeySession2 = null;
101 return createGCPromise(); 101 return createGCPromise();
102 }).then(function() { 102 }).then(function() {
103 // Only MediaKeys should remain. 103 // Only MediaKeys should remain.
104 // In non-Oilpan, there is also something from createGCPromi se(). 104 // In non-Oilpan, there is also something from createGCPromi se().
105 assert_between_inclusive(numActiveDOMObjectsCreated(), 1, 2, 'mediaKeySession2 not collected'); 105 assert_between_inclusive(numSuspendableObjectsCreated(), 1, 2, 'mediaKeySession2 not collected');
106 test.done(); 106 test.done();
107 }).catch(function(error) { 107 }).catch(function(error) {
108 forceTestFailureFromPromise(test, error); 108 forceTestFailureFromPromise(test, error);
109 }); 109 });
110 }, 'MediaKeySession lifetime after release()'); 110 }, 'MediaKeySession lifetime after release()');
111 </script> 111 </script>
112 </body> 112 </body>
113 </html> 113 </html>
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