[DevTools] Separate text autosizing from device metrics override.

Source/devtools/protocol.json

 {
     "version": { "major": "1", "minor": "1" },
     "domains": [{
         "domain": "Inspector",
         "hidden": true,
         "types": [],
         "commands": [
             {
                 "name": "enable",
                 "description": "Enables inspector domain notifications."
@@ skipping 321 matching lines @@
                 "name": "setDocumentContent",
                 "description": "Sets given markup as the document's HTML.",
                 "parameters": [
                     { "name": "frameId", "$ref": "FrameId", "description": "Frame id to set HTML for." },
                     { "name": "html", "type": "string", "description": "HTML content to set."  }
                 ],
                 "hidden": true
             },
             {
                 "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) and the font scale factor.",
+                "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": "emulateViewport", "type": "boolean", "description": "Whether viewport meta tag should be respected." },
                     { "name": "fitWindow", "type": "boolean", "description": "Whether a view that exceeds the available browser window area should be scaled down to fit." },
                     { "name": "scale", "type": "number", "optional": true, "description": "Scale to apply to resulting view image. Ignored in |fitWindow| mode." },
                     { "name": "offsetX", "type": "number", "optional": true, "description": "X offset to shift resulting view image by. Ignored in |fitWindow| mode." },
-                    { "name": "offsetY", "type": "number", "optional": true, "description": "Y offset to shift resulting view image by. Ignored in |fitWindow| mode." },
-                    { "name": "textAutosizing", "type": "boolean", "optional": true, "description": "Whether to override the text autosizing feature." },
-                    { "name": "fontScaleFactor", "type": "number", "optional": true, "description": "Overriding system font scale factor (must be positive)." }
+                    { "name": "offsetY", "type": "number", "optional": true, "description": "Y offset to shift resulting view image by. Ignored in |fitWindow| mode." }
                 ],
                 "hidden": true
             },
             {
                 "name": "clearDeviceMetricsOverride",
                 "description": "Clears the overriden device metrics.",
                 "hidden": true
             },
             {
                 "name": "setShowPaintRects",
@@ skipping 3847 matching lines @@
             {
                 "name": "dataAvailable",
                 "parameters": [
                     {"name": "value", "type": "array", "items": { "$ref": "PowerEvent" }, "description": "List of power events." }
                 ],
                 "handlers": ["browser", "frontend"]
             }
         ]
     }]
 }