[DevTools] Small cleanup after device mode v2.

third_party/WebKit/Source/devtools/protocol.json

 {
     "version": { "major": "1", "minor": "1" },
     "domains": [{
         "domain": "Inspector",
         "hidden": true,
         "types": [],
         "commands": [
             {
                 "name": "enable",
                 "description": "Enables inspector domain notifications.",
@@ skipping 614 matching lines @@
                 "parameters": [
                     { "name": "show", "type": "boolean", "description": "True for showing scroll bottleneck rects" }
                 ]
             }
         ]
     },
     {
         "domain": "Emulation",
         "description": "This domain emulates different environments for the page.",
         "hidden": true,
-        "types": [
-            {
-                "id": "Viewport",
-                "type": "object",
-                "description": "Visible page viewport",
-                "properties": [
-                    { "name": "scrollX", "type": "number", "description": "X scroll offset in CSS pixels." },
-                    { "name": "scrollY", "type": "number", "description": "Y scroll offset in CSS pixels." },
-                    { "name": "contentsWidth", "type": "number", "description": "Contents width in CSS pixels." },
-                    { "name": "contentsHeight", "type": "number", "description": "Contents height in CSS pixels." },
-                    { "name": "pageScaleFactor", "type": "number", "description": "Page scale factor." },
-                    { "name": "minimumPageScaleFactor", "type": "number", "description": "Minimum page scale factor." },
-                    { "name": "maximumPageScaleFactor", "type": "number", "description": "Maximum page scale factor." }
-                ]
-            }
-        ],
         "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." },
                     { "name": "mobile", "type": "boolean", "description": "Whether to emulate mobile device. This includes viewport meta tag, overlay scrollbars, text autosizing and more." },
                     { "name": "fitWindow", "type": "boolean", "description": "Whether a view that exceeds the available browser window area should be scaled down to fit." },
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                 "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"]
             }
-        ],
-        "events": [
-            {
-                "name": "viewportChanged",
-                "description": "Fired when a visible page viewport has changed. Only fired when device metrics are overridden.",
-                "parameters": [
-                    { "name": "viewport", "$ref": "Viewport", "description": "Viewport description." }
-                ]
-            }
         ]
     },
     {
         "domain": "Runtime",
         "description": "Runtime domain exposes JavaScript runtime by means of remote evaluation and mirror objects. Evaluation results are returned as mirror object that expose object type, string representation and unique identifier that can be used for further object reference. Original objects are maintained in memory unless they are either explicitly released or are released along with the other objects in their object group.",
         "types": [
             {
                 "id": "RemoteObjectId",
                 "type": "string",
                 "description": "Unique object identifier."
@@ skipping 4557 matching lines @@
                 ],
                 "returns": [
                     { "name": "accessibilityNode", "$ref": "AXNode", "description": "The <code>Accessibility.AXNode</code> for this DOM node, if it exists.", "optional": true }
                 ],
                 "description": "Fetches the accessibility node for this DOM node, if it exists.",
                 "hidden": true
             }
         ]
     }]
 }