[DevTools] Introduce EmulationModel which will encapsulate emulation

third_party/WebKit/Source/devtools/BUILD.gn

Index: third_party/WebKit/Source/devtools/BUILD.gn
diff --git a/third_party/WebKit/Source/devtools/BUILD.gn b/third_party/WebKit/Source/devtools/BUILD.gn
index dfc55fb55b8bb990541d965ee1dcf66001390df1..2edd250da3f97c923c7dd1fd7447a526f6802754 100644
--- a/third_party/WebKit/Source/devtools/BUILD.gn
+++ b/third_party/WebKit/Source/devtools/BUILD.gn
@@ -197,11 +197,9 @@ all_devtools_files = [
   "front_end/emulation/deviceModeView.css",
   "front_end/emulation/DeviceModeView.js",
   "front_end/emulation/DeviceModeWrapper.js",
-  "front_end/emulation/DeviceOrientation.js",
   "front_end/emulation/devicesSettingsTab.css",
   "front_end/emulation/DevicesSettingsTab.js",
   "front_end/emulation/EmulatedDevices.js",
-  "front_end/emulation/Geolocation.js",
   "front_end/emulation/inspectedPagePlaceholder.css",
   "front_end/emulation/InspectedPagePlaceholder.js",
   "front_end/emulation/mediaQueryInspector.css",
@@ -209,7 +207,6 @@ all_devtools_files = [
   "front_end/emulation/module.json",
   "front_end/emulation/sensors.css",
   "front_end/emulation/SensorsView.js",
-  "front_end/emulation/TouchModel.js",
   "front_end/event_listeners/EventListenersUtils.js",
   "front_end/event_listeners/eventListenersView.css",
   "front_end/event_listeners/EventListenersView.js",
@@ -469,6 +466,7 @@ all_devtools_files = [
   "front_end/sdk/DOMDebuggerModel.js",
   "front_end/sdk/DebuggerModel.js",
   "front_end/sdk/DOMModel.js",
+  "front_end/sdk/EmulationModel.js",
   "front_end/sdk/FilmStripModel.js",
   "front_end/sdk/HeapProfilerModel.js",
   "front_end/sdk/LayerTreeBase.js",