Adds enableVirtualTime and setVirtualTimePolicy To Emulation domain.

third_party/WebKit/Source/core/inspector/browser_protocol.json

 {
     "version": { "major": "1", "minor": "1" },
     "domains": [{
         "domain": "Inspector",
         "hidden": true,
         "types": [],
         "commands": [
             {
                 "name": "enable",
                 "description": "Enables inspector domain notifications.",
@@ skipping 652 matching lines @@
         "hidden": true,
         "types": [
             {
                 "id": "ScreenOrientation",
                 "type": "object",
                 "description": "Screen orientation.",
                 "properties": [
                     { "name": "type",  "type": "string", "enum": ["portraitPrimary", "portraitSecondary", "landscapePrimary", "landscapeSecondary"], "description": "Orientation type." },
                     { "name": "angle",  "type": "integer", "description": "Orientation angle." }
                 ]
+            },
+            {
+                "id": "VirtualTimePolicy",
+                "type": "string",
+                "enum": [
+                    "advance",
+                    "pause",
+                    "pauseIfNetworkFetchesPending"
+                ],
+                "description": "advance: If the scheduler runs out of immediate work, the virtual time base may fast forward to allow the next delayed task (if any) to run; pause: The virtual time base may not advance; pauseIfNetworkFetchesPending: The virtual time base may not advance if there are any pending resource fetches."
             }
         ],
         "commands": [
             {
                 "name": "setDeviceMetricsOverride",
                 "description": "Overrides the values of device screen dimensions (window.screen.width, window.screen.height, window.innerWidth, window.innerHeight, and \"device-width\"/\"device-height\"-related CSS media query results).",
                 "parameters": [
                     { "name": "width", "type": "integer", "description": "Overriding width value in pixels (minimum 0, maximum 10000000). 0 disables the override." },
                     { "name": "height", "type": "integer", "description": "Overriding height value in pixels (minimum 0, maximum 10000000). 0 disables the override." },
                     { "name": "deviceScaleFactor", "type": "number", "description": "Overriding device scale factor value. 0 disables the override." },
@@ skipping 71 matching lines @@
                 ],
                 "description": "Enables CPU throttling to emulate slow CPUs."
             },
             {
                 "name": "canEmulate",
                 "description": "Tells whether emulation is supported.",
                 "returns": [
                     { "name": "result", "type": "boolean", "description": "True if emulation is supported." }
                 ],
                 "handlers": ["browser"]
+            },
+            {
+                "name": "setVirtualTimePolicy",
+                "description": "Turns on virtual time for all frames (replacing real-time with a synthetic time source) and sets the current virtual time policy.",
+                "parameters": [
+                    { "name": "policy", "$ref": "VirtualTimePolicy" }
+                ],
+                "hidden": true
             }
         ]
     },
     {
         "domain": "Security",
         "description": "Security",
         "hidden": true,
         "types": [
             {
                 "id": "CertificateId",
@@ skipping 3452 matching lines @@
                 "description": "Dispatches protocol message from the target with given id.",
                 "parameters": [
                     { "name": "targetId", "$ref": "TargetID" },
                     { "name": "message", "type": "string" }
                 ],
                 "handlers": ["browser"]
             }
         ]
     }]
 }