Convert Devtools protocol Input timestamp to monotonic clock

third_party/WebKit/LayoutTests/inspector-protocol/input/eventTimestamp.html

Index: third_party/WebKit/LayoutTests/inspector-protocol/input/eventTimestamp.html
diff --git a/third_party/WebKit/LayoutTests/inspector-protocol/input/eventTimestamp.html b/third_party/WebKit/LayoutTests/inspector-protocol/input/eventTimestamp.html
new file mode 100644
index 0000000000000000000000000000000000000000..fe385b95113090b578ed18232a659f6f7564246b
--- /dev/null
+++ b/third_party/WebKit/LayoutTests/inspector-protocol/input/eventTimestamp.html
@@ -0,0 +1,124 @@
+<script type="text/javascript" src="../../http/tests/inspector-protocol/inspector-protocol-test.js"></script>
+<script>
+window.addEventListener("keydown", logEvent);
+window.addEventListener("mousedown", logEvent);
+window.addEventListener("touchstart", logEvent);
+
+var receivedTimestamps = [];
+
+function logEvent(event)
+{
+    log("-----Event-----");
+    log("type: " + event.type);
+    receivedTimestamps.push(event.timeStamp);
+}
+
+function verifyTimestamps()
+{
+    log("-----Verify-----");
+    log("Received " + receivedTimestamps.length + " timestamps");
+
+    // Event.timeStamp values are in milliseconds
+    var expectedOffsets = [0, 5000, 10000, 15000, 20000, 25000];
+    var receivedOffsets = receivedTimestamps.map(function(timestamp) {
+        return timestamp - receivedTimestamps[0];
+    });
+    for (var i = 0; i < receivedOffsets.length; ++i) {
+        if (isNear(receivedOffsets[i], expectedOffsets[i]))
+            log("timeStamps offsets is as expected.");
+        else
+            log("timeStamp offset is expected " + expectedOffsets[i] + " but it is:" + receivedOffsets[i]);
+    }
+
+    function isNear(a, b) {
+        var epsilon = 0.5;
+        return Math.abs(b - a) < epsilon;
+    }
+
+}
+
+function test()
+{
+    // We send epoch timestamp but expect to receive high-res timestamps
+    var baseEpochTimestamp = Date.now() / 1000; // in seconds
+    var sentTimestamps = [0, 5, 10, 15, 20, 25].map(function(offset) {
+        return baseEpochTimestamp + offset;
+    });
+
+    var commands = [{
+        value: "Input.dispatchKeyEvent",
+        event: {
+            "type": "rawKeyDown",
+            "timestamp": sentTimestamps[0]
+        }
+    }, {
+        value: "Input.dispatchKeyEvent",
+        event: {
+            "type": "rawKeyDown",
+            "timestamp": sentTimestamps[1]
+        }
+    }, {
+        value: "Input.dispatchMouseEvent",
+        event: {
+            "type": "mousePressed",
+            "timestamp": sentTimestamps[2],
+            "button": "left",
+            "clickCount": 1,
+            "x": 100,
+            "y": 200
+        }
+    }, {
+        value: "Input.dispatchMouseEvent",
+        event: {
+            "type": "mousePressed",
+            "timestamp": sentTimestamps[3],
+            "button": "left",
+            "clickCount": 1,
+            "x": 100,
+            "y": 200
+        }
+    }, {
+        value: "Input.dispatchTouchEvent",
+        event: {
+            "type": "touchStart",
+            "timestamp": sentTimestamps[4],
+            "touchPoints": [{
+                "state": "touchPressed",
+                "x": 100,
+                "y": 200
+            }]
+        }
+    }, {
+        value: "Input.dispatchTouchEvent",
+        event: {
+            "type": "touchStart",
+            "timestamp": sentTimestamps[5],
+            "touchPoints": [{
+                "state": "touchPressed",
+                "x": 100,
+                "y": 100
+            }]
+
+        }
+    }];
+
+    for (var i = 0; i < commands.length; i++)
+        InspectorTest.sendCommand(commands[i].value, commands[i].event, checkResponse.bind(undefined, i == commands.length - 1));
+
+    function checkResponse(isLastCommand, msg)
+    {
+        if (msg.error)
+            InspectorTest.log("Error: " + msg.error.message);
+        if (isLastCommand) {
+            InspectorTest.sendCommandOrDie("Runtime.evaluate", {
+                expression: 'verifyTimestamps()'
+            }, function() {
+                InspectorTest.completeTest();
+            });
+        }
+    }
+}
+</script>
+
+<body onload="runTest()">
+</body>