mandoline: Fix character entry in html_viewer on Linux.

mandoline/ui/aura/window_tree_host_mojo.h

 // 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.
 
 #ifndef MANDOLINE_UI_AURA_WINDOW_TREE_HOST_MOJO_H_
 #define MANDOLINE_UI_AURA_WINDOW_TREE_HOST_MOJO_H_
 
 #include "base/macros.h"
 #include "components/view_manager/public/cpp/view_observer.h"
 #include "ui/aura/window_tree_host.h"
 #include "ui/events/event_source.h"
 #include "ui/gfx/geometry/rect.h"
 
 class SkBitmap;
 
 namespace ui {
 class Compositor;
 }
 
 namespace mojo {
 class Shell;
 }
 
 namespace mandoline {
 
+class InputMethodMandoline;
 class SurfaceContextFactory;
 
 class WindowTreeHostMojo : public aura::WindowTreeHost,
                            public mojo::ViewObserver {
  public:
   WindowTreeHostMojo(mojo::Shell* shell, mojo::View* view);
   ~WindowTreeHostMojo() override;
 
   const gfx::Rect& bounds() const { return bounds_; }
 
@@ skipping 18 matching lines @@
 
   // mojo::ViewObserver:
   void OnViewBoundsChanged(mojo::View* view,
                            const mojo::Rect& old_bounds,
                            const mojo::Rect& new_bounds) override;
 
   mojo::View* view_;
 
   gfx::Rect bounds_;
 
+  scoped_ptr<InputMethodMandoline> input_method_;
+
   scoped_ptr<SurfaceContextFactory> context_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(WindowTreeHostMojo);
 };
 
 }  // namespace mandoline
 
 #endif  // MANDOLINE_UI_AURA_WINDOW_TREE_HOST_MOJO_H_