DevTools: device mode devices remember last used zoom

third_party/WebKit/LayoutTests/inspector/device-mode/device-mode-test.js

+var initialize_DeviceMode = function()
+{
+    InspectorTest.buildFakePhone = function(overrides)
+    {
+        var StandardPhoneJSON = {
+            "show-by-default": false,
+            "title": "Fake Phone 1",
+            "screen": {
+                "horizontal": { "width": 480, "height": 320 },
+                "device-pixel-ratio": 2,
+                "vertical": { "width": 320, "height": 480 }
+            },
+            "capabilities": ["touch", "mobile"],
+            "user-agent": "fakeUserAgent",
+            "type": "phone",
+            "modes": [
+                {
+                    "title": "default",
+                    "orientation": "vertical",
+                    "insets": { "left": 0, "top": 0, "right": 0, "bottom": 0 }
+                },
+                {
+                    "title": "default",
+                    "orientation": "horizontal",
+                    "insets": { "left": 0, "top": 0, "right": 0, "bottom": 0 }
+                }
+            ]
+        };
+        var json = Object.assign(StandardPhoneJSON, overrides || {});
+        return WebInspector.EmulatedDevice.fromJSONV1(json);
+    }
+}