Mus-WS / Aura-Mus: Propagate LocalSurfaceId on WindowTreeHost creation

services/ui/public/interfaces/window_manager.mojom

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 module ui.mojom;
 
 import "cc/ipc/frame_sink_id.mojom";
+import "cc/ipc/local_surface_id.mojom";
 import "services/ui/public/interfaces/cursor.mojom";
 import "services/ui/public/interfaces/event_matcher.mojom";
 import "services/ui/public/interfaces/window_manager_constants.mojom";
 import "services/ui/public/interfaces/window_tree_constants.mojom";
 import "skia/public/interfaces/bitmap.mojom";
 import "ui/base/mojo/ui_base_types.mojom";
 import "ui/display/mojo/display.mojom";
 import "ui/events/mojo/event.mojom";
 import "ui/events/mojo/event_constants.mojom";
 import "ui/gfx/geometry/mojo/geometry.mojom";
@@ skipping 127 matching lines @@
 
   // The window's title. Maps to aura::client::kTitleKey. Type: mojom::String
   const string kWindowTitle_Property = "prop:window-title";
 
   // End long lived properties. ------------------------------------------------
 
   // Called immediately when the WindowManager is obtained.
   OnConnect(uint16 client_id);
 
   // Called when a new display is added. |root| gives the root window specific
-  // to this WindowManager for |display|.
+  // to this WindowManager for |display|. |frame_sink_id| uniquely identifies
+  // the window manager in the display compositor. |local_surface_id| identifies
+  // the ID to use to submit CompositorFrames.
   WmNewDisplayAdded(display.mojom.Display display,
                     WindowData root,
                     bool parent_drawn,
-                    cc.mojom.FrameSinkId frame_sink_id);
+                    cc.mojom.FrameSinkId frame_sink_id,
+                    cc.mojom.LocalSurfaceId? local_surface_id);
 
   // Called when a display is removed. The root of the specified display is
   // still valid. It is expected the client calls DeleteWindow() shortly after
   // this with the root.
   WmDisplayRemoved(int64 display_id);
 
   // Called when a display is modified. The root of the specified display will
   // be resized by the WindowServer after this.
   WmDisplayModified(display.mojom.Display display);
 
@@ skipping 119 matching lines @@
   OnWmCreatedTopLevelWindow(uint32 change_id, uint32 window_id);
 
   // See description in WindowManager::OnAccelerator(). |ack_id| is the value
   // that was passed to OnAccelerator(). If the accelerator is a pre-target
   // handler and |event_result| is UNHANDLED, then |properties| is added to
   // the KeyEvent that is dispatched to the client with the focused window.
   OnAcceleratorAck(uint32 ack_id,
                    EventResult event_result,
                    map<string, array<uint8>> properties);
 };