Makes construction of (ash)RemoteWindowTreeHostWin explicit

ash/host/ash_window_tree_host.h

 // Copyright 2014 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.
 
 #ifndef ASH_HOST_ASH_WINDOW_TREE_HOST_H_
 #define ASH_HOST_ASH_WINDOW_TREE_HOST_H_
 
 #include "ash/ash_export.h"
 #include "base/memory/scoped_ptr.h"
 
 namespace aura {
 class Window;
 class WindowTreeHost;
 }
 
 namespace gfx {
 class Insets;
 class Rect;
 }
 
 namespace ash {
+struct AshWindowTreeHostInitParams;
 class RootWindowTransformer;
 
 class ASH_EXPORT AshWindowTreeHost {
  public:
+  virtual ~AshWindowTreeHost() {}
+
   // Creates a new AshWindowTreeHost. The caller owns the returned value.
-  static AshWindowTreeHost* Create(const gfx::Rect& initial_bounds);
-
-  virtual ~AshWindowTreeHost() {}
+  static AshWindowTreeHost* Create(
+      const AshWindowTreeHostInitParams& init_params);
 
   // Toggles the host's full screen state.
   virtual void ToggleFullScreen() = 0;
 
   // Clips the cursor to the bounds of the root window until UnConfineCursor().
   // We would like to be able to confine the cursor to that window. However,
   // currently, we do not have such functionality in X. So we just confine
   // to the root window. This is ok because this option is currently only
   // being used in fullscreen mode, so root_window bounds = window bounds.
   virtual bool ConfineCursorToRootWindow() = 0;
@@ skipping 10 matching lines @@
   // A root window can be associated with up to 2 display IDs (e.g. in mirror
   // mode dual monitors case). If the root window is only associated with one
   // display id, then the other id should be set to
   // gfx::Display::kInvalidDisplayID.
   virtual void UpdateDisplayID(int64 id1, int64 id2) {};
 };
 
 }  // namespace ash
 
 #endif  // ASH_HOST_ASH_WINDOW_TREE_HOST_H_