[DevTools] Move device mode button to AdvancedApp and add shortcut.

Source/devtools/front_end/main/module.json

 {
     "extensions": [
         {
             "type": "@WebInspector.ContextMenu.Provider",
             "contextTypes": ["WebInspector.UISourceCode", "WebInspector.Resource", "WebInspector.NetworkRequest", "Node"],
             "className": "WebInspector.HandlerRegistry.ContextMenuProvider"
         },
         {
             "type": "@WebInspector.ActionDelegate",
             "actionId": "main.reload",
@@ skipping 98 matching lines @@
                     "platform": "windows,linux",
                     "shortcut": "Ctrl+0 Ctrl+Numpad0"
                 },
                 {
                     "platform": "mac",
                     "shortcut": "Meta+0 Meta+Numpad0"
                 }
             ]
         },
         {
+            "type": "@WebInspector.ActionDelegate",
+            "actionId": "main.toggle-device-mode",
+            "className": "WebInspector.AdvancedApp.ToggleDeviceModeActionDelegate",
+            "bindings": [
+                {
+                    "platform": "windows,linux",
+                    "shortcut": "Shift+Ctrl+M"
+                },
+                {
+                    "platform": "mac",
+                    "shortcut": "Shift+Meta+M"
+                }
+            ]
+        },
+        {
             "type": "drawer-view",
             "name": "emulation",
             "title": "Emulation",
             "order": "10",
             "className": "WebInspector.OverridesView"
         },
         {
             "type": "drawer-view",
             "name": "rendering",
             "title": "Rendering",
             "order": "11",
             "className": "WebInspector.RenderingOptions.View"
         },
         {
             "type": "@WebInspector.Revealer",
             "contextTypes": ["WebInspector.OverridesSupport"],
             "className": "WebInspector.OverridesView.Revealer"
         },
         {
             "type": "@WebInspector.StatusBarButton.Provider",
             "className": "WebInspector.InspectElementModeController.ToggleButtonProvider",
             "location": "toolbar-left",
             "order": 0,
             "actionId": "main.toggle-element-search"
         },
         {
             "type": "@WebInspector.StatusBarButton.Provider",
-            "className": "WebInspector.App.EmulationButtonProvider",
+            "className": "WebInspector.AdvancedApp.EmulationButtonProvider",
             "order": 1,
             "location": "toolbar-left"
         },
         {
             "type": "@WebInspector.StatusBarButton.Provider",
             "className": "WebInspector.DockController.ButtonProvider",
             "order": 1,
             "location": "toolbar-right"
         },
         {
@@ skipping 29 matching lines @@
             "settingType": "checkbox"
         },
         {
             "type": "ui-setting",
             "section": "Extensions",
             "settingType": "custom",
             "className": "WebInspector.HandlerRegistry.OpenAnchorLocationSettingDelegate"
         }
     ]
 }