Add a headless configuration to Mojo's native viewport service

mojo/services/native_viewport/platform_viewport.h

 // Copyright 2013 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 MOJO_SERVICES_NATIVE_VIEWPORT_PLATFORM_VIEWPORT_H_
 #define MOJO_SERVICES_NATIVE_VIEWPORT_PLATFORM_VIEWPORT_H_
 
 #include "base/memory/scoped_ptr.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/gfx/size.h"
 
 namespace gfx {
 class Rect;
 }
 
 namespace ui {
 class Event;
 }
 
 namespace mojo {
 
 // Encapsulation of platform-specific Viewport.
 class PlatformViewport {
  public:
   class Delegate {
    public:
     virtual ~Delegate() {}
 
-    virtual void OnBoundsChanged(const gfx::Rect& size) = 0;
+    virtual void OnBoundsChanged(const gfx::Rect& rect) = 0;

[jamesr, 2014/09/25 22:18:14]

hmm? i don't understand this change

[abarth-chromium, 2014/09/25 23:31:36]

I renamed the formal parameter.  It is a rect, not a size.

     virtual void OnAcceleratedWidgetAvailable(
         gfx::AcceleratedWidget widget) = 0;
     virtual bool OnEvent(ui::Event* ui_event) = 0;
     virtual void OnDestroyed() = 0;
   };
 
   virtual ~PlatformViewport() {}
 
   virtual void Init(const gfx::Rect& bounds) = 0;
   virtual void Show() = 0;
   virtual void Hide() = 0;
   virtual void Close() = 0;
   virtual gfx::Size GetSize() = 0;
   virtual void SetBounds(const gfx::Rect& bounds) = 0;
 
   virtual void SetCapture() = 0;
   virtual void ReleaseCapture() = 0;
 
   static scoped_ptr<PlatformViewport> Create(Delegate* delegate);
 };
 
 }  // namespace mojo
 
 #endif  // MOJO_SERVICES_NATIVE_VIEWPORT_PLATFORM_VIEWPORT_H_