Moves common view_manager related aura files to mojo/aura

mojo/aura/window_tree_host_mojo.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 MOJO_EXAMPLES_AURA_DEMO_WINDOW_TREE_HOST_VIEW_MANAGER_H_
 #define MOJO_EXAMPLES_AURA_DEMO_WINDOW_TREE_HOST_VIEW_MANAGER_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 {
-namespace examples {
 
-class WindowTreeHostViewManager : public aura::WindowTreeHost,
-                                  public ui::EventSource {
+class WindowTreeHostMojoDelegate;
+
+class WindowTreeHostMojo : public aura::WindowTreeHost, public ui::EventSource {
  public:
-  explicit WindowTreeHostViewManager(const gfx::Rect& bounds);
-  virtual ~WindowTreeHostViewManager();
+  WindowTreeHostMojo(const gfx::Rect& bounds,
+                     WindowTreeHostMojoDelegate* delegate);
+  virtual ~WindowTreeHostMojo();
+
+  // Returns the WindowTreeHostMojo for the specified compositor.
+  static WindowTreeHostMojo* ForCompositor(ui::Compositor* compositor);
 
   const gfx::Rect& bounds() const { return bounds_; }
 
+  // Sets the contents to show in this WindowTreeHost. This forwards to the
+  // delegate.
+  void SetContents(const SkBitmap& contents);
+
  private:
   // WindowTreeHost:
   virtual ui::EventSource* GetEventSource() OVERRIDE;
   virtual gfx::AcceleratedWidget GetAcceleratedWidget() OVERRIDE;
   virtual void Show() OVERRIDE;
   virtual void Hide() OVERRIDE;
   virtual gfx::Rect GetBounds() const OVERRIDE;
   virtual void SetBounds(const gfx::Rect& bounds) OVERRIDE;
   virtual gfx::Point GetLocationOnNativeScreen() const OVERRIDE;
   virtual void SetCapture() OVERRIDE;
   virtual void ReleaseCapture() OVERRIDE;
   virtual void PostNativeEvent(const base::NativeEvent& native_event) OVERRIDE;
   virtual void OnDeviceScaleFactorChanged(float device_scale_factor) OVERRIDE;
   virtual void SetCursorNative(gfx::NativeCursor cursor) OVERRIDE;
   virtual void MoveCursorToNative(const gfx::Point& location) OVERRIDE;
   virtual void OnCursorVisibilityChangedNative(bool show) OVERRIDE;
 
   // ui::EventSource:
   virtual ui::EventProcessor* GetEventProcessor() OVERRIDE;
 
   gfx::Rect bounds_;
 
-  DISALLOW_COPY_AND_ASSIGN(WindowTreeHostViewManager);
+  WindowTreeHostMojoDelegate* delegate_;
+
+  DISALLOW_COPY_AND_ASSIGN(WindowTreeHostMojo);
 };
 
-}  // namespace examples
 }  // namespace mojo
 
 #endif  // MOJO_EXAMPLES_AURA_DEMO_WINDOW_TREE_HOST_VIEW_MANAGER_H_