DevTools: rename WebInspector into modules.

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);
+        return Emulation.EmulatedDevice.fromJSONV1(json);
     }
 }