Documented SystemInfo domain in DevTools protocol.

Source/devtools/browser_protocol.json

+{
+    "version": { "major": "1", "minor": "0" },
+    "domains": [{
+        "domain": "SystemInfo",
+        "description": "The SystemInfo domain defines methods and events for querying low-level system information.",
+        "hidden": true,
+        "types": [
+            {
+                "id": "GPUDevice",
+                "type": "object",
+                "properties": [
+                    { "name": "vendorId", "type": "number", "description": "PCI ID of the GPU vendor, if available; 0 otherwise." },
+                    { "name": "deviceId", "type": "number", "description": "PCI ID of the GPU device, if available; 0 otherwise." },
+                    { "name": "vendorString", "type": "string", "description": "String description of the GPU vendor, if the PCI ID is not available." },
+                    { "name": "deviceString", "type": "string", "description": "String description of the GPU device, if the PCI ID is not available." }
+                ],
+                "description": "Describes a single graphics processor (GPU)."
+            },
+            {
+                "id": "GPUInfo",
+                "type": "object",
+                "properties": [
+                    { "name": "gpus", "type": "array", "items": { "$ref": "GPUDevice" }, "description": "The GPU(s) on the system. Element 0 is the primary GPU." },

[pfeldman, 2013/08/14 19:31:37]

nit: "devices" is more pleasant to my non-native ear than gpus.

[Ken Russell (switch to Gerrit), 2013/08/14 21:17:51]

Fine, I'll rename it.

+                    { "name": "auxAttributes", "type": "object", "optional": "true", "description": "An optional dictionary of additional GPU related attributes." }
+                ],
+                "description": "Provides information about the GPU(s) on the system."
+            },
+            {
+                "id": "SystemInfo",
+                "type": "object",
+                "properties": [
+                    { "name": "gpu", "$ref": "GPUInfo", "description": "Information about the GPUs on the system." },
+                    { "name": "machineModel", "type": "string", "description": "A platform-dependent description of the model of the machine. On Mac OS, this is, for example, 'MacBookPro 10.1'. Will be the empty string if not supported." }

[pfeldman, 2013/08/14 19:31:37]

nit: Should we follow System Information naming here? My Mac is:
Model Name:	MacBook Pro
Model Identifier:	MacBookPro10,1

I.e. should this be named "modelName"? 

[Ken Russell (switch to Gerrit), 2013/08/14 21:17:51]

I'll rename it "modelName". It doesn't really correspond either to the Mac model
name or identifier (in Chrome it's a reformatted model identifier) and I don't
want to require that it precisely match either one.

+                ],
+                "description": "Provides information about the system."
+            }
+        ],
+        "commands": [
+            {
+                "name": "getInfo",
+                "description": "Returns information about the system.",
+                "returns": [
+                    { "name": "info", "$ref": "SystemInfo", "description": "Information about the system." }
+                ]
+            }
+        ]
+    }]
+}